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15 July 2018
Marl-based geopolymers incorporated with limestone: A feasibility study
Publication date: 15 July 2018
Source:Journal of Non-Crystalline Solids, Volume 492 Author(s): Nailia R. Rakhimova, Ravil Z. Rakhimov, Vladimir P. Morozov, Albert R. Gaifullin, Ludmila I. Potapova, Alfiya M. Gubaidullina, Yury N. Osin The expanding raw materials base is one of the drivers for the further development of inorganic binders, including alkali-activated cements. This research focuses on studying marl with a high calcite/aluminosilicates ratio as a geopolymer precursor, and limestone as a mineral addition to this geopolymer. The calcination of marl at 800
15 July 2018
Thermal stability of phase change GaSb\GeTe, SnSe\GeTe and GaSb\SnSe double stacked films revealed by X-ray reflectometry and X-ray diffraction
Publication date: 15 July 2018
Source:Journal of Non-Crystalline Solids, Volume 492 Author(s): A. Velea, F. Sava, G. Socol, A.M. Vlaicu, C. Mihai, A. L
15 July 2018
Migration and enrichment of chromium and silicon element in glass coating at high temperature
Publication date: 15 July 2018
Source:Journal of Non-Crystalline Solids, Volume 492 Author(s): G.Y. Fu, L.Q. Wei, X.M. Zhang, Y.B. Cui, B. Yu, C.C. Lv, Y.L. Wang, S.F. Ye The formation and mechanism of chromium and silicon enriched glass coating on carbon steel substrate were investigated in this paper, which was based on the protection properties of the glass coating to improve the anti-oxidation ability of carbon steel. The starting reaction temperature between the glass coating and steel substrate was 800
15 July 2018
Structural origin of dynamical relaxation in undercooled Cu50Zr50 metallic liquid
Publication date: 15 July 2018
Source:Journal of Non-Crystalline Solids, Volume 492 Author(s): Yun Cheng, Zhen-Ting Zhang, Daniel
1 July 2018
Structural and dielectric properties of (100
1 July 2018
Editorial Board
Publication date: 1 July 2018
Source:Journal of Non-Crystalline Solids, Volume 491

1 July 2018
The correlation between mechanical properties and structure of Fe-Ni-P-B amorphous alloys: Ab initio molecular dynamics simulations
Publication date: 1 July 2018
Source:Journal of Non-Crystalline Solids, Volume 491 Author(s): Luohong Shi, Qiang Li, Haiming Duan, Wenbiao Zhang, Weiming Yang, Hongxiang Li, Chuntao Chang To understand the structural origin of the significant improvement on the plasticity of Fe-based bulk metallic glasses (BMGs) through the replacement of Fe by Ni, the short-range order (SRO) and medium-range order (MRO) structures of Fe80
1 July 2018
A novel composite of alginate aerogel with PET nonwoven with enhanced thermal resistance
Publication date: 1 July 2018
Source:Journal of Non-Crystalline Solids, Volume 491 Author(s): Faheem Ahmad, Zeynep Ulker, Can Erkey There is a need to develop new composite fabrics with improved thermal properties. Aerogels are highly porous materials with low thermal conductivities and can be used to develop new composites with standard nonwoven fabrics. In this study, a new composite of alginate aerogel with polyester (PET) nonwoven was synthesized by a sol-gel method. A needle punched PET nonwoven was soaked with an alginate solution and then immersed in an aqueous CaCl2 solution which resulted in the formation of a gel inside the PET nonwoven. The gel was dried with supercritical CO2 after solvent exchange with ethanol leading to alginate aerogel-PET nonwoven composite. The aerogels were porous and were in the form of blocks in between the PET fibers as evident from SEM images. The thermal properties of the composite were measured using a heat flow meter. The thermal diffusivity of the composite was significantly lower than the thermal diffusivity of the pure PET nonwoven. The composite also had a higher thermal resistance and also a higher tensile strength than the pure PET nonwoven. Experiments using a thermal imaging camera indicated that the heat flux in the composite is much lower than in pure PET nonwoven due to the presence of alginate aerogel. The results show that the new composite material is promising for use in thermal clothing applications.
1 July 2018
Different property studies with network improvement of CdO doped alkali borate glass
Publication date: 1 July 2018
Source:Journal of Non-Crystalline Solids, Volume 491 Author(s): Mahesh M. Hivrekar, D.B. Sable, M.B. Solunke, K.M. Jadhav Quaternary alkali borate glass matrix doped with CdO (0, 2, 4, 6, 8, 10
1 July 2018
Transition zone theory of the glass transition
Publication date: 1 July 2018
Source:Journal of Non-Crystalline Solids, Volume 491 Author(s): James D. Martin, Feier Hou An energy-based theory of the glass transition is described and validated by evaluation of crystallization and viscosity data of sixteen diverse systems, ranging from the fragile o-terphenyl to the strong SiO2 glass formers, including glass formation in non-crystallizing polymers. Transition zone theory demonstrates an inverse temperature dependence of the entropy of activation for crystallization and viscous relaxation which results in a temperature at which their free energies of activation are equivalent. Below this temperature there is a greater probability of crystallization than of relaxation. Under such conditions, crystal-like organization can propagate only over the internal length scales for which the system has relaxed, i.e. a few nanometers. However, that structural organization makes the barrier to bulk liquid relaxation insurmountable, resulting in glass formation. The temperature of the crystallization-relaxation free energy of activation equivalence point, defines the glass transition temperature. The temperature dependent slope of the free energy of activation for relaxation at the equivalence point reflects the fragility of the system. The time-temperature dependence of viscous relaxation shifts the crystallization-relaxation free energy of activation equivalence point, consistent with the sample history dependence of T g . Crystal-like formation over nanometer-length scales, which can still occur below T g , is shown to account for glass aging.
1 July 2018
Superior azo-dye degradation of Fe-Si-B-P amorphous powders with graphene oxide addition
Publication date: 1 July 2018
Source:Journal of Non-Crystalline Solids, Volume 491 Author(s): Feng Wang, Hao Wang, Haifeng Zhang, Zhenhua Dan, Nan Weng, Wanying Tang, Fengxiang Qin Degradation behavior of methyl orange and direct blue 6 azo dyes catalyzed by Fe76Si9B10P5 amorphous powders and graphene oxide (GO) addition composites has been investigated. The results revealed that the Fe76Si9B10P5 amorphous powders are more effective to degrade azo dyes than the commercial Fe powders with the activity energies of 24.2
1 July 2018
Structure, electrochemical characterization and the role of copper oxide in lead-lead dioxide glasses and vitroceramics
Publication date: 1 July 2018
Source:Journal of Non-Crystalline Solids, Volume 491 Author(s): S. Rada, M. Zagrai, M. Rada, L. Magerusan, A. Popa, R. Suciu, S. Macavei, M. Suciu Glasses and vitroceramics in the xCuO(100-x)[4PbO2 Pb] composition, where x
1 July 2018
Time and humidity dependence of indentation cracking in aluminosilicate glasses
Publication date: 1 July 2018
Source:Journal of Non-Crystalline Solids, Volume 491 Author(s): Tobias K. Bechgaard, John C. Mauro, Morten M. Smedskjaer The inherent brittleness and poor crack resistance of oxide glasses have always been among their main limitations for many advanced applications. As the formation of cracks leads to amplification of applied tensile stresses and ultimately catastrophic failure, there is an interest in understanding the compositional and structural dependence of crack initiation and growth. The resistance to cracking can conventionally be measured using instrumented indentation that mimics the real-life damage for certain applications. Wada introduced a method to evaluate the crack resistance by counting the number of initiated cracks as a function of the applied load. Experiments have shown that the environmental humidity and the time period between indentation and crack counting both affect the crack resistance value, but unfortunately these parameters are not always reported in literature studies. Here we perform a systematic study of the time and humidity dependence of crack initiation in calcium aluminosilicate glasses. Depending on the experimental conditions (time and humidity), the crack resistance of an aluminosilicate glass can vary by more than a factor of two. Furthermore, the observed radial/median cracks can initiate several hours after indentation. These results therefore indicate the need for a standardized procedure for determination of crack resistance to allow comparison of data from different research groups. We suggest including a sufficiently long waiting period (such as 24
1 July 2018
Effect of rare-earth oxides on structure and chemical resistance of calcium aluminophosphate glasses
Publication date: 1 July 2018
Source:Journal of Non-Crystalline Solids, Volume 491 Author(s): Qingshun Shi, Junfeng Kang, Ya Qu, Shiquan Liu, G.A. Khater, Sheng Li, Yanling Wang, Yunlong Yue In this paper, the structure and chemical durability of calcium aluminophosphate glasses, containing rare earth oxides (La2O3 and CeO2), was investigated. The glasses were prepared and melted an electric furnace at temperatures ranging from 1350 to 1370
1 July 2018
Elastic-plastic deformation in ion-exchanged aluminosilicate glass by loading rate dependent nanoindentation
Publication date: 1 July 2018
Source:Journal of Non-Crystalline Solids, Volume 491 Author(s): Xiaoyu Li, Liangbao Jiang, Jiaming Li, Iman Mohagheghian, John P. Dear, Lei Li, Yue Yan The elastic-plastic deformation in raw and ion-exchanged aluminosilicate glass is investigated by loading rate dependent nanoindentation. The nanohardness and Young's modulus of the raw and ion-exchanged glasses at different loading rate (100–20,000
1 July 2018
Performance evaluation of glass and rock wool fibers to improve thermal stability and mechanical strength of monolithic phenol-formaldehyde based carbon aerogels
Publication date: 1 July 2018
Source:Journal of Non-Crystalline Solids, Volume 491 Author(s): Mohammad Mehdi Seraji, Sina Kianersi, Seyed Hadi Hosseini, Jamal Davarpanah, Somayeh Elahi Rock and glass wool fiber reinforced phenol-formaldehyde monolithic composite aerogels (PF/RWF and PF/GWF, respectively) were prepared using solvent saturated sol–gel and impregnation of fibers by initial PF sol. The composite wet gels were dried by using ambient-pressure drying technique. After it, synthesized polymeric aerogels were transformed to rock and glass wool fiber reinforced monolithic carbon composite aerogels (C/RWF and C/GWF) through carbonization at 850
1 July 2018
Substitutions of zinc in mesoporous silicate-based glasses and their physicochemical and biological properties
Publication date: 1 July 2018
Source:Journal of Non-Crystalline Solids, Volume 491 Author(s): J. Ma, B.X. Huang, X.C. Zhao, C.L. Ban, X.H. Hao, C.Z. Wang Mesoporous bioactive silicate-based glasses in the system of (38-x)CaO–xZnO–58SiO2– 4P2O5 (mol.%), where x varies between 0 and 20, have been prepared by the sol–gel method. The influence of zinc addition on glass physicochemical properties, degradability and apatite- formation ability was comprehensively investigated. The nitrogen adsorption/desorption results confirmed the glasses mesoporous structure. The degradability of glass was studied in Tris–HCl, the addition of zinc would lead to a decrease. Furthermore, the glass apatite-formation ability was assessed by immersion of samples in simulated body fluid (SBF) solution for up to 7
1 July 2018
Kinetic analysis of crystallization in Li2O-Al2O3-SiO2-B2O3-BaO glass-ceramics
Publication date: 1 July 2018
Source:Journal of Non-Crystalline Solids, Volume 491 Author(s): Jiang Shi, Feng He, Junlin Xie, Xiaoqing Liu, Hu Yang The crystallization mechanisms for Li2O-Al2O3-SiO2-B2O3-BaO glass-ceramics were studied by differential scanning calorimetry (DSC) under non-isothermal conduction. The activation energy and Avrami exponent of the glass-ceramics had been calculated by Kissinger method and Kissinger-Akahira-Sunose (KAS) method. Comparison of the measured DSC data with calculated curves at different heating rates using Sestak-Berggren (SB) model and Johnson-Mehl-Avrami-Kolmogorov (JMAK) model revealed the commonly used JMAK was not a suitable kinetic model for this glass-ceramic. However, the empirical SB model was found to be acceptable for analyzing the kinetics of crystallization for the studied glass composition. This model matched well with the DSC curves, with slight deviations at the tails of the peaks. Furthermore, the crystalline phases and microstructure of samples sintered at 730
1 July 2018
Enhanced plasticity of Zr56Co24Ag4Al16 and Zr56Co22Cu6Al16 bulk metallic glasses by controlling the casting temperature
Publication date: 1 July 2018
Source:Journal of Non-Crystalline Solids, Volume 491 Author(s): Masoud Mohammadi Rahvard, Morteza Tamizifar, Seyed Mohammad Ali Boutorabi The influence of casting temperature on the compressive plasticity of Zr56Co24Ag4Al16 and Zr56Co22Cu6Al16 bulk metallic glasses (BMGs) fabricated via copper mold suction casting was studied through the varying electric discharge current, including (100%, 90%, 80% and 70%). The X-ray diffraction (XRD) and transmission electron microscopy (TEM) were used to investigate the glassy alloys structure. In addition, the compression test, microhardness test, differential scanning calorimetry (DSC) and scanning electron microscopy (SEM) were utilized to discuss the possible mechanisms involved in the enhanced plasticity achievement. The results demonstrated that the samples subjected to the 80% casting current exhibit the highest compressive plasticity. The plastic strain increased dramatically from 4% to 10.7% for the Ag-containing samples and from 5.7% to 12% for the Cu-containing samples as the casting current decreased from 100% to 80%, and then the plastic strain decreased to 8.4% for the Ag-containing sample and to 9.4% for the Cu-containing sample at 70% of the casting current. The effect of casting temperature on the mechanical properties was explored by focusing mainly upon the effects of structure evolution such as those of free-volume content variations.
1 July 2018
Thermal characteristics and crystallization behavior of zinc borosilicate glasses containing Nb2O5
Publication date: 1 July 2018
Source:Journal of Non-Crystalline Solids, Volume 491 Author(s): Regina C.C. Monteiro, Andreia A.S. Lopes, Maria M.R.A. Lima, Jo
1 July 2018
Vitrification, crystallization, and atomic structure of deformed and quenched Ni60Nb40 metallic glass
Publication date: 1 July 2018
Source:Journal of Non-Crystalline Solids, Volume 491 Author(s): Pei Zhang, Zhe Wang, John H. Perepezko, Paul M. Voyles A Ni60Nb40 alloy was vitrified from fcc Ni and bcc Nb by cold rolling and by rapid solidification of an alloy ingot. The Ni60Nb40 that was vitrified by rolling has a lower crystallization onset temperature with single crystallization reaction compared to the two-stage crystallization at higher temperature for quenched Ni60Nb40. Fluctuation electron microscopy and hybrid reverse Monte Carlo modeling show that the as-rolled Ni60Nb40 contains fewer icosahedral-like Voronoi clusters and more crystal-like and bcc-like Voronoi clusters, which are inherited from the bcc Nb. The crystal-like and bcc-like medium range order clusters may be the structural origin for lower crystallization temperature in the as-rolled glass. It is demonstrated that hybrid reverse Monte Carlo simulations incorporating fluctuation microscopy and an empirical interatomic potential are insensitive to the starting structure.
1 July 2018
Effect of ZrO2 on the structure and properties of soda-lime silicate glasses from molecular dynamics simulations
Publication date: 1 July 2018
Source:Journal of Non-Crystalline Solids, Volume 491 Author(s): Xiaonan Lu, Lu Deng, Jincheng Du Zirconia-containing soda-lime silicate glasses with compositions of xZrO2-(75-x)SiO2-15Na2O-10CaO, where x
15 June 2018
Tungsten-based glasses for photochromic, electrochromic, gas sensors, and related applications: A review
Publication date: 1 July 2018
Source:Journal of Non-Crystalline Solids, Volume 491 Author(s): Mohamed Ataalla, Ahmed S. Afify, Mohamed Hassan, Mohamed Abdallah, Margarita Milanova, Hassan Y. Aboul-Enein, Amr Mohamed The present work focuses on reviewing the scientific literature on various types of tungsten-based glasses such as tungsten–phosphate, tungsten–tellurite, tungsten–borate glasses, tungsten–germinate, tungsten–antimonate, and non-traditional tungsten oxide-containing glasses. The glass formation, structure, thermal, some chemical, physical and characterization of materials are discussed. Tungsten-based glasses show a remarkable potential for many photochromic, electrochromic and gas sensing applications.

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15 June 2018
Editorial Board
Publication date: 15 June 2018
Source:Journal of Non-Crystalline Solids, Volume 490

15 June 2018
Synthesis, characterization and solubility analysis of amorphous SiO2-CaO-Na2O-P2O5 scaffolds for hard tissue repair
Publication date: 15 June 2018
Source:Journal of Non-Crystalline Solids, Volume 490 Author(s): S.S. Chon, L. Piraino, S. Mokhtari, E.A. Krull, A. Coughlan, Y. Gong, N.P. Mellott, T.J. Keenan, A.W. Wren The substitution of TiO2 with network modifiers (sodium, Na+ and calcium, Ca2+) within a bioactive glass series was investigated to synthesize amorphous scaffolds from the SiO2-CaO-Na2O-P2O5 glass system. Three glasses were formulated for this study, a control (BG) and two experimental formulations with 9
15 June 2018
Deformation mode transitions in Cu50Zr50 amorphous/Cu crystalline nanomultilayer: A molecular dynamics study
Publication date: 15 June 2018
Source:Journal of Non-Crystalline Solids, Volume 490 Author(s): H.Y. Song, M. Wang, Q. Deng, Y.L. Li The amorphous/crystalline (A/C) nanomultilayers have been aroused great interest in people due to its first-class mechanical properties. The effects of the thickness of crystalline and amorphous on the deformation mechanism of A/C CuZr/Cu nanomultilayers under tension loading here are investigated by molecular dynamics method. The results indicate that the mechanical behavior of nanomultilayer strongly depends on the bidirectional synergistic deformation mechanism between crystal phase and amorphous phase. The deformation behavior of nanomultilayers can be controlled by integrating the thickness of different phases to achieve high strength and superplastic multilayer materials. For the nanomultilayers with constant crystal layer, the plastic deformation changes from shear band propagation to a pronounced interface slip-accommodation mechanism, and ultimately to crack propagation mode with decreasing amorphous thickness. For the nanomultilayers with fixed amorphous layer thickness, the mechanical behavior changes from localization to plastic co-deformation mode with the crystalline thickness decreases. This study proposes an approach for achieving a good balance between strength and ductility, which is useful for the synthesis of A/C nanomultilayer with high strength and predominant ductility.

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15 June 2018
The spectroscopic and elastic properties of borosilicate glasses doped with NdF3
Publication date: 15 June 2018
Source:Journal of Non-Crystalline Solids, Volume 490 Author(s): Samir Y. Marzouk, S. Zobaidi, Aly Okasha, M.S. Gaafar NdF3-doped borosilicate glasses were prepared using the high-temperature melt components of ingredients of NdF3 doped borosilicate glasses. Optical transmission spectra were collected in the range of 190–2500
15 June 2018
Effects of metalloid content on viscosity of Fe-Si-B-P-C alloy melt
Publication date: 15 June 2018
Source:Journal of Non-Crystalline Solids, Volume 490 Author(s): Ying Li, Wen-zhi Chen, Bang-shao Dong, Shao-xiong Zhou Viscosity of Fe85
15 June 2018
The effect of erbium oxide in physical and structural properties of zinc tellurite glass system
Publication date: 15 June 2018
Source:Journal of Non-Crystalline Solids, Volume 490 Author(s): S.N. Nazrin, M.K. Halimah, F.D. Muhammad, J.S. Yip, L. Hasnimulyati, M.F. Faznny, M.A. Hazlin, I. Zaitizila In this research, the melt-quenching method was used to synthesize a series of zinc tellurite glass systems doped with erbium oxide with the chemical composition of [(TeO2)0.7 (ZnO)0.3]1
15 June 2018
The structure and certain properties of CaO-In2O3-P2O5 glasses
Publication date: 15 June 2018
Source:Journal of Non-Crystalline Solids, Volume 490 Author(s): Z.
1 June 2018
A study of the nanoindentation creep behavior of (La0.5Ce0.5)65Al10Co25 metallic glass based on fractional differential rheological model
Publication date: 15 June 2018
Source:Journal of Non-Crystalline Solids, Volume 490 Author(s): Fu Xu, Nan Zeng, Kexin Cheng, Xin Wang, Shiguo Long, Yanhuai Ding, Caiqian Yang A fractional differential rheological model was proposed to describe the nanoindentation creep behavior of metallic glasses (MGs) at room temperature. The model had been proved to not only include the conventional rheological model, but can be used to obtain the empirical formula that has been commonly used to characterize nanoindentation creep behavior of MGs. The reversible and irreversible parts of time-dependent deformations of (La0.5Ce0.5)65Al10Co25 metallic glass were obtained through nanoindentation creep experiments, and the results were used to investigate the effects of the creep load P max and the loading rate P
1 June 2018
Editorial Board
Publication date: 1 June 2018
Source:Journal of Non-Crystalline Solids, Volume 489

1 June 2018
Glass formation and soft magnetic properties in Dy-containing Fe–Si–B alloys by adjusting B/Si mole ratio
Publication date: 1 June 2018
Source:Journal of Non-Crystalline Solids, Volume 489 Author(s): Wen Li, C.X. Xie, Y.Z. Yang, C.L. Yao The Fe87
1 June 2018
Probing the 1H spin distribution in hybrid organic-inorganic gels by multiple-quantum NMR spectroscopy
Publication date: 1 June 2018
Source:Journal of Non-Crystalline Solids, Volume 489 Author(s): S.G. Vasil'ev, V.I. Volkov, E.A. Tatarinova, A.M. Muzafarov, N.A. Sipyagina, S.A. Lermontov Multiple-quantum (MQ) NMR was used to characterize the organic phase distribution in a series of hybrid organic-inorganic gels namely methyltrimethoxysilane aerogel and QM resins (trimethylsiloxysilicate polymers) with different composition. The Gaussian model of distribution of MQ coherence intensities was used to determine the effective 1H spin cluster size (N). The growth of the effective cluster size with the time of excitation of MQ NMR coherences
1 June 2018
Hardness of silicate glasses: Atomic-scale origin of the mixed modifier effect
Publication date: 1 June 2018
Source:Journal of Non-Crystalline Solids, Volume 489 Author(s): Yingtian Yu, Mengyi Wang, N.M. Anoop Krishnan, Morten M. Smedskjaer, K. Deenamma Vargheese, John C. Mauro, Magdalena Balonis, Mathieu Bauchy The origin of the various manifestations of the mixed modifier effect in silicate glasses remains poorly understood. Here, based on molecular dynamics simulations, we investigate the origin of a negative deviation from linearity in the hardness of a series of mixed alkaline earth aluminosilicate glasses. The minimum of hardness is shown to arise from a maximum propensity for shear flow deformations in mixed compositions. We demonstrate that this anomalous behavior originates from the existence of local structural instabilities in mixed compositions arising from a mismatch between the modifiers and the rest of the silicate network. Overall, we suggest that the mixed modifier effect manifests itself as a competition between the thermodynamic driving force for structural relaxation and the kinetics thereof.
1 June 2018
Formation of antireflection structures for silicon in near-infrared region using AlOx/TiOx bilayer and SiNx single-layer
Publication date: 1 June 2018
Source:Journal of Non-Crystalline Solids, Volume 489 Author(s): Yong Tae Kim, Jae Yu Cho, Jaeyeong Heo Antireflection (AR) layers for Si were investigated for applications in optical communication in the wavelength range of 1270–1330
1 June 2018
Electric field for increasing the solubility of glass - a much sought after pharmaceutical advantage
Publication date: 1 June 2018
Source:Journal of Non-Crystalline Solids, Volume 489 Author(s): G.P. Johari A glass is usually formed by supercooling a liquid under ambient conditions. It can also be formed by supercooling under the influence of a static electric field, E, and used, after removing E, in the electrically polarized state as glass-electret. On the basis of the relation between E and the free energy, we formally deduce that solubility, dissolution rate and vapor pressure of a glass-electret would be higher than the corresponding values of normally formed glass. Calculations performed by using generic values show that increase in solubility would be by about 5–19%, and is likely to be more for a pharmaceutical glass. Further, we propose that solubility advantage of a pharmaceutical may be more accurately determined by measuring the vapor pressure. Electrets formed from liquid crystal and orientationally-disordered crystal state of pharmaceuticals would show similar increase in solubility and vapor pressure. The conclusions are important because of the need to increase the bioavailability of orally-, or intravenously-administered poorly soluble compounds whose molecules enable a therapeutic change in human physiology.
1 June 2018
Photocatalytic performance of plasmonic Au/Ag-TiO2 aerogel nanocomposites
Publication date: 1 June 2018
Source:Journal of Non-Crystalline Solids, Volume 489 Author(s): Sima Sadrieyeh, Rasoul Malekfar Porous nanocomposites of Au/Ag-TiO2 aerogels benefit from unique morphological characteristics of aerogels, intrinsic physical, chemical and also photocatalytic required properties of TiO2 and strong plasmonic effects of metal nanoparticles, i.e., Au and Ag. Therefore, they are able to be applied as an ideal photocatalyst overcoming the intrinsic weak points of conventional TiO2. In this research, several composites of TiO2 aerogel modified with Au, Ag and mixture of Au-Ag nanoparticles were prepared by applying two different methods of synthesis. The photocatalytic efficiency of the samples was established by using salicylic acid (SA) as a standard pollutant molecule. The photodegradation rate of SA under irradiation was investigated by the decrease in its concentration in time, and found to depend on specific surface area and type of metal nanoparticles trapped into the TiO2 network. The larger surface area and the presence of the two metal nanoparticles lead to the best results. Furthermore, the morphological characterizations and physical properties of the nanocomposites were investigated through BET results, FESEM and TEM images.

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1 June 2018
The structural arrangement and the optical band gap in certain Quaternary PbO–ZnO–TeO2–B2O3 glasses
Publication date: 1 June 2018
Source:Journal of Non-Crystalline Solids, Volume 489 Author(s): Helena Ticha, Jiri Schwarz, Ladislav Tichy Eight PbO–ZnO–TeO2–B2O3 glasses were prepared with a standard melting method from pure oxides. The substitution of TeO2 by B2O3 leads to an increase in the glass-transition temperature from 292 to 457
1 June 2018
Study of printing parameters of pneumatic-injection 3D printing of Fe-based metallic glass
Publication date: 1 June 2018
Source:Journal of Non-Crystalline Solids, Volume 489 Author(s): Wenzheng Wu, Haidong Du, Hang Sui, Bin Sun, Bofan Wang, Zijian Yu, Hao Ni, Guiwei Li, Ji Zhao A helpful method to process Fe-based metallic glass called pneumatic-injection 3D printing is proposed. Considering the characteristics of Fe-based metallic glass particles, such as large particle size, high density, and complex surface ions, their wettability and suspension stability were investigated using experiments based on the Washburn equation. The effect of pH value, powder's morphology and granularity on wettability was qualitatively analyzed. Multiple dispersants for the slurries of Fe-based metallic glass powder were tested. The experimental results revealed the wettability of the spherical powder with a size range of 45–200
1 June 2018
Facile fabrication and luminescence characteristics of a mixture of phosphors (LuAG: Ce and CaAlSiN3: Eu) in glass for white LED
Publication date: 1 June 2018
Source:Journal of Non-Crystalline Solids, Volume 489 Author(s): Ziming Wang, Jun Zou, Canyun Zhang, Bobo Yang, Mingming Shi, Yang Li, Heyu Zhou, Yiming Liu, Mengtian Li, Zizhuan Liu The white LED was fabricated using a mixture of phosphors (LuAG: Ce and CaAlSiN3: Eu) in bismuthate glass as converted materials. The phosphors (LuAG: Ce and CaAlSiN3: Eu) in glass was prepared by low-temperature co-sintering. The microstructure and luminescent mechanism of a mixture of phosphors (LuAG: Ce and CaAlSiN3: Eu) in glass was investigated, the results showed that phosphors (LuAG: Ce and CaAlSiN3: Eu) not only exist in the glass matrix without noticeable reaction, but also can be effectively excited by blue light. After simply varying the weight ratio of bismuthate glass to phosphors (LuAG: Ce and CaAlSiN3: Eu) as well as the ratio of LuAG: Ce to CaAlSiN3: Eu, the CIE chromaticity tuning in the fabricated LED has been achieved. It has revealed that the fabricated white LED has excellent developing potential for different lighting applications.
1 June 2018
Effect of melting parameters during synthesis on the structure and properties of tin fluoride phosphate glasses
Publication date: 1 June 2018
Source:Journal of Non-Crystalline Solids, Volume 489 Author(s): Nora Iturraran, Karine Huraux, Yuqing Bao, David Thomas Gawne, Jean Guilment FTIR and Raman spectroscopy indicate the glass structure during synthesis of tin fluoride phosphate glass was pyrophosphate, mainly built up from Q1 end groups with a low concentration of Q2 polymeric chains. However, sub-optimal melting produced significantly higher concentrations of orthophosphate Q0 structural units. The variations in NH and P-OH vibrations in the spectra revealed that a critical time and temperature of melting were necessary for the conversion of NH4H2PO2 to produce sufficient P2O5 for glass forming. During melting, P2O5 and SnF2 form a low-temperature melt, which facilitates melting of the SnO and promotes the formation of a more stable glass structure. The fluorine breaks the POP bonds and induces depolymerisation. The density of the glass reached a maximum at 450
1 June 2018
Preparation and characterization of crystallized and relaxed amorphous Mg-Zn-Ca alloy ribbons for nerve regeneration application
Publication date: 1 June 2018
Source:Journal of Non-Crystalline Solids, Volume 489 Author(s): A. Monfared, A. Ghaee, S. Ebrahimi-Barough For the purpose of developing biodegradable magnesium alloys with suitable properties for biomedical applications, Mg-based metallic glasses have attracted significant attention as a new class of biodegradable metals due to their excellent corrosion resistance. In this study, Mg70Zn26Ca4 (in atomic percent) metallic glass ribbon was prepared by melt spinning and structural characteristics were investigated by differential scanning calorimetry and X-ray diffraction. For biocorrosion evaluations, two relaxed and crystallized ribbons were prepared from heat treatment of as-quenched ribbon. 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay was used for investigating cytotoxicity of ribbons with Schwann cells for their potential application in nerve regeneration. Relaxed ribbon showed better biocorrosion resistance and biocompatibility than that of crystallized ribbon. Results showed Mg-based metallic glass can be potentially promising candidates for application in nerve tissue regeneration.
1 June 2018
Application of the JMAK model for crystal dissolution kinetics in a borosilicate melt
Publication date: 1 June 2018
Source:Journal of Non-Crystalline Solids, Volume 489 Author(s): J. Fournier, E. R
1 June 2018
Upconversion/back-transfer losses and emission dynamics in Nd3+-Yb3+ co-doped phosphate glasses for multiple pump channel laser
Publication date: 1 June 2018
Source:Journal of Non-Crystalline Solids, Volume 489 Author(s): F. Rivera-L
15 May 2018
Editorial Board
Publication date: 15 May 2018
Source:Journal of Non-Crystalline Solids, Volume 488

15 May 2018
Study of short range structure of amorphous Silica from PDF using Ag radiation in laboratory XRD system, RAMAN and NEXAFS
Publication date: 15 May 2018
Source:Journal of Non-Crystalline Solids, Volume 488 Author(s): Ripan K. Biswas, Prosenjit Khan, Smita Mukherjee, Anoop K. Mukhopadhyay, Jiten Ghosh, K. Muraleedharan At present synchrotron and neutron sources are the preferred choices for the Pair Distribution Function (PDF) analysis, but there is a need to explore PDF in a laboratory XRD system for quick feedback about the short range structure of the amorphous materials. Present work considered both crystalline (quartz) and amorphous silica to study the structural differences in silica by PDF analysis using Ag radiations in laboratory XRD. The structural information about short range ordering of the oxygen (O) atoms around silicon (Si) atoms as obtained by the PDF were compared with the results as obtained by Near Edge X-ray Absorption Fine Structure (NEXAFS) and RAMAN experiments. The PDF studies showed that the amorphous silica possessed short range periodicity within the basic unit of (SiO4)4

Effect of selenium addition on network connectivity in P2O5-CaO-MgO-Na2O glasses
Publication date: 15 May 2018
Source:Journal of Non-Crystalline Solids, Volume 488 Author(s): R. Ciceo-Lucacel, M. Todea, V. Simon A new glass system xSeO2(1-x)[40P2O5-30CaO-20MgO-10Na2O] with nominal concentration of SeO2 ranging between 0 and 20
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