Glass Physics and Chemistry最新文献_第8页

Annealing Time-Driven Steering of the Structural, Morphological and Optoelectronic Characteristics of Zn-Doped TiO2 Nanostructures 退火时间驱动控制zn掺杂TiO2纳米结构的结构、形态和光电特性

IF 0.8 4区材料科学

Glass Physics and Chemistry Pub Date : 2025-03-03 DOI: 10.1134/S1087659624600224

C. John Clement Singh, S. C. Jeyakumar, S. Murugavel, Abdulrahman I. Almansour, S. Sahaya Jude Dhas, Sivakumar Aswathappa, C. S. Biju

{"title":"Annealing Time-Driven Steering of the Structural, Morphological and Optoelectronic Characteristics of Zn-Doped TiO2 Nanostructures","authors":"C. John Clement Singh, S. C. Jeyakumar, S. Murugavel, Abdulrahman I. Almansour, S. Sahaya Jude Dhas, Sivakumar Aswathappa, C. S. Biju","doi":"10.1134/S1087659624600224","DOIUrl":"10.1134/S1087659624600224","url":null,"abstract":"The ability to tailor the bandgap in semiconductor nanostructures from the ultraviolet to visible range is imperative in various light-mediated optoelectronic applications. In this work, Zn-doped TiO2 nanostructures were prepared and annealed at 350°C for different time intervals such as 1, 2, and 3 h to tailor the band gap. The effects of annealing time on the structural and optical properties of Zn-doped TiO2 nanostructures were investigated. According to XRD studies, increasing the annealing time authenticates that the dislocation density in the nanostructures decreases, whereas the crystallite size increases. TEM image of the sample annealed at 350°C for 3 h shows the average grain size distribution as 12.33 ± 0.12 nm. The XPS spectrum of the nanostructures that underwent a 3 h annealing at 350°C reveals a broad peak centered at 1021.06 eV, which indicates the Zn2+ oxidation state of Zn atoms. The photoluminescence studies indicate that the intensity of UV-visible luminescence bands changes with a rise in annealing time. UV-visible spectroscopic analysis reveals that the band gap increases from 3.32 to 3.36 eV and then decreases to 3.25 eV when the annealing time is raised linearly. Moreover, Zn-doped TiO2 that has been annealed at 350°C for 3 h has a red shift in the absorption edge and a reduction in the optical band gap, suggesting that it may find application in optoelectronic devices.","PeriodicalId":580,"journal":{"name":"Glass Physics and Chemistry","volume":"50 4","pages":"418 - 427"},"PeriodicalIF":0.8,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143533219","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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On One Fundamental Property of the Contact (Impact) of Rigid Elastic Bodies 刚弹性体接触（冲击）的一个基本性质

IF 0.8 4区材料科学

Glass Physics and Chemistry Pub Date : 2025-03-03 DOI: 10.1134/S1087659624600972

V. Ya. Shevchenko, A. S. Oryschenko, S. N. Perevislov

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Vapor Formation and Thermodynamic Properties of Melts of the BaO–Al2O3–SiO2 System BaO-Al2O3-SiO2体系熔体的气相形成及热力学性质

IF 0.8 4区材料科学

Glass Physics and Chemistry Pub Date : 2025-03-03 DOI: 10.1134/S1087659624600492

E. A. Balabanova, S. I. Lopatin, N. G. Tyurnina, Z. G. Tyurnina, S. M. Shugurov, I. G. Polyakova, D. A. Repin

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Toxicity of Quartzoid Glasses Containing Cesium 含铯石英玻璃的毒性

IF 0.8 4区材料科学

Glass Physics and Chemistry Pub Date : 2025-03-03 DOI: 10.1134/S1087659624600960

T. A. Tsyganova, A. Sokolov, Ya. P. Lushankin, M. V. Staritsyn, L. N. Kurilenko, I. N. Anfimova

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Structural Characteristics and Thermal Properties of Bioactive Glasses Doped with Boron Oxide 氧化硼掺杂生物活性玻璃的结构特征和热性能

IF 0.8 4区材料科学

Glass Physics and Chemistry Pub Date : 2025-03-03 DOI: 10.1134/S1087659623601120

Madival Harish, M. Chethan, M. Sudhakara Reddy, Asha Rajiv

{"title":"Structural Characteristics and Thermal Properties of Bioactive Glasses Doped with Boron Oxide","authors":"Madival Harish, M. Chethan, M. Sudhakara Reddy, Asha Rajiv","doi":"10.1134/S1087659623601120","DOIUrl":"10.1134/S1087659623601120","url":null,"abstract":"Bioactive glasses with a composition of (80 – x)NaPO3–xB2O3–5CaF2–15MgO, where x varies from 20 to 40 mol % were prepared through the melt quench technique. To examine the amorphous characteristics of the glasses and any structural modifications, X-ray diffraction (XRD) and Fourier-transform infrared spectroscopy (FTIR) analysis were conducted, respectively. The density of the fabricated glasses decreased as the B2O3 composition ranged from 20 to 40 mol %. Furthermore, the glasses were immersed in simulated body fluid (SBF) solution for 21 days for in vitro bioactivity studies. After this period, the development of apatite on the glass surfaces was assessed through XRD, FTIR, scanning electron microscope (SEM), and energy dispersive X-ray spectroscopy (EDX) technique. The EDX analysis reveals an elevation in the levels of boron and calcium in the glasses that were immersed in the SBF solution for 21 days. This increase underscores the material’s bioactivity and its potential to facilitate bone regeneration and ensure long-term stability. These findings position it as a promising material for use in applications related to bone regeneration and tissue engineering. The thermal properties of the glasses were analyzed through differential scanning calorimetry (DSC), and the glass transition temperature (Tg) was determined. Interestingly, the prepared glasses revealed the presence of a boron anomaly. By systematically varying the level of B2O3 to NaPO3 substitutions in the glass system, the effect of composition on several important properties is elucidated.","PeriodicalId":580,"journal":{"name":"Glass Physics and Chemistry","volume":"50 4","pages":"363 - 373"},"PeriodicalIF":0.8,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143533263","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Synthesis of Hydroxyapatite Substituted by REE Ions (La3+, Ce3+), and Study of the Composition, Structure, and Properties of the Obtained Samples 稀土离子（La3+, Ce3+）取代羟基磷灰石的合成及其组成、结构和性能研究

IF 0.8 4区材料科学

Glass Physics and Chemistry Pub Date : 2025-03-03 DOI: 10.1134/S1087659624600947

O. A. Golovanova

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Temperature Dependence of the Specific Heat of Borate Bismuth Glasses with the Addition of Sodium 添加钠对硼酸铋玻璃比热的温度依赖性

IF 0.8 4区材料科学

Glass Physics and Chemistry Pub Date : 2025-03-03 DOI: 10.1134/S1087659623600783

D. S. Kuchakshoev, A. G. Dzhabarov, A. Kholov

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Cluster Self-Organization of Intermetallic Systems: New Clusters-Precursors K3, K4, K6, and K11 for the Self-Assembly of Crystal Structures of the Li40P4Ge20-oP64 and Ti40P24-oP64 Families 金属间化合物体系的团簇自组织：Li40P4Ge20-oP64和Ti40P24-oP64家族自组装晶体结构的新团簇前体K3、K4、K6和K11

IF 0.8 4区材料科学

Glass Physics and Chemistry Pub Date : 2025-03-03 DOI: 10.1134/S1087659624600984

V. Ya. Shevchenko, G. D. Ilyushin

{"title":"Cluster Self-Organization of Intermetallic Systems: New Clusters-Precursors K3, K4, K6, and K11 for the Self-Assembly of Crystal Structures of the Li40P4Ge20-oP64 and Ti40P24-oP64 Families","authors":"V. Ya. Shevchenko, G. D. Ilyushin","doi":"10.1134/S1087659624600984","DOIUrl":"10.1134/S1087659624600984","url":null,"abstract":"Using computer methods (ToposPro software package), a combinatorial-topological analysis and modeling of the self-assembly of Li40P4Ge20-oP64 (V = 1082.85 Å3, Pnma) and Ti40P24-oP64 (V = 955.14 Å3, Pnma) crystalline structures is carried out. For the crystal structure of Li40P4Ge20-oP64, 36 variants of the identification of cluster structures with the number of clusters N = 2, 3, and 4 are established. The self-assembly of a crystal structure with the participation of clusters-precursors K11 = 0@11(Li5(LiGe5)) is considered in the form of pentagonal pyramids LiGe5 with five Li atoms located on five faces of the pyramid, rings K3 = @3(Li2P), and Li spacer atoms. For the crystal structure of Ti40P24-oP64, 55 variants of the identification of cluster structures with the number of clusters N = 2, 3, 4, and 6 are established. The self-assembly of a crystal structure involving clusters-precursors in the form of six-atom double tetrahedra, K6(4a) = 0@6(Ti4P2), K6(4b) = 0@6 (Ti4P2), three-atom rings K3 = 0@3(TiP2) and K3 = 0@3(Ti2P), and tetrahedrons K4 = 0@4 (Ti3P) is considered. The symmetric and topological code of the self-assembly processes of 3D Li40P4Ge20-oP64 and Ti40P24-oP64 structures from clusters-precursors is reconstructed in the following form: primary chain → layer → framework.","PeriodicalId":580,"journal":{"name":"Glass Physics and Chemistry","volume":"50 4","pages":"331 - 340"},"PeriodicalIF":0.8,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143533043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Synthesis and Study of La2O3–SiO2 Systems Obtained from Kaolin and Tetraetoxysilane 高岭土和四乙氧基硅烷制备La2O3-SiO2体系的合成与研究

IF 0.8 4区材料科学

Glass Physics and Chemistry Pub Date : 2025-03-03 DOI: 10.1134/S1087659624600959

S. I. Niftaliev, I. V. Kuznetsova, L. V. Lygina, N. I. Ponomareva, S. E. Plotnikova, S. S. Mironov, K. B. Kim, Tran Nhat Anh

{"title":"Synthesis and Study of La2O3–SiO2 Systems Obtained from Kaolin and Tetraetoxysilane","authors":"S. I. Niftaliev, I. V. Kuznetsova, L. V. Lygina, N. I. Ponomareva, S. E. Plotnikova, S. S. Mironov, K. B. Kim, Tran Nhat Anh","doi":"10.1134/S1087659624600959","DOIUrl":"10.1134/S1087659624600959","url":null,"abstract":"La2O3–SiO2 systems are synthesized from kaolin and tetraethoxysilane. The thermal decomposition of images after freeze-drying when heated to 1000°C is studied using thermogravimetry and differential scanning calorimetry. The morphology of the samples is studied by transmission electron microscopy (TEM) and dynamic light scattering (DLS); the acid–base properties of the surface are determined by the indicator method. During the heating of samples in the temperature range of 25–600°C, endothermic effects are discovered, accompanied by weight loss. The structure of the kaolin sample is heterogeneous; nanoparticles (10 nm) of lanthanum oxide are located on the surface of microparticles (220–270 nm) of silicon oxide. The sample obtained from tetraethoxysilane has a homogeneous nanostructure with particle sizes of 5–13 nm, but is characterized by less intense sorption values at Brønsted acid sites (pKa 1.7; 3.46) compared to the sample from kaolin. This is due to the production of the La2O3–SiO2 system already in solution and the blocking of silanol groups on the surface of silicon oxide. A significant increase in specific adsorption at pKa 9.2 for both the kaolin and tetraethoxysilane samples proves the existence of La3+ metal ions and OH– hydroxyl groups on the surface of silicon oxide.","PeriodicalId":580,"journal":{"name":"Glass Physics and Chemistry","volume":"50 4","pages":"411 - 417"},"PeriodicalIF":0.8,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143533046","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Photoluminophores Based on Porous Glasses Coactivated by Cu2+ and Y3+: Synthesis and Spectral Properties 基于Cu2+和Y3+共激活多孔玻璃的光致发光团的合成及其光谱性质

IF 0.8 4区材料科学

Glass Physics and Chemistry Pub Date : 2025-03-03 DOI: 10.1134/S1087659624600753

M. A. Girsova, G. F. Golovina, I. N. Anfimova, L. N. Kurilenko, T. V. Antropova

{"title":"Photoluminophores Based on Porous Glasses Coactivated by Cu2+ and Y3+: Synthesis and Spectral Properties","authors":"M. A. Girsova, G. F. Golovina, I. N. Anfimova, L. N. Kurilenko, T. V. Antropova","doi":"10.1134/S1087659624600753","DOIUrl":"10.1134/S1087659624600753","url":null,"abstract":"Composite materials (CMs) based on matrices of high-silica porous glasses activated by Cu2+ and Y3+ ions are synthesized. The influence of the composition of composites (concentration and ratio of copper and yttrium introduced) and the temperature of their heat treatment (in the range of 50–870°C) on their spectral properties is studied. Examining samples using optical and IR spectroscopy reveals absorption bands related to Cu2+ ions and caused by vibrations of the Y–O bonds in Y2O3. It is established that, depending on the synthesis conditions, the obtained materials possess UV, blue-green, and IR luminescence due to the presence of various active centers (defects and oxygen vacancies in CuO, Cu2+ ions, radicals <img>, and F centers in Y2O3, =Si0 centers, E' centers (O3≡({text{Si}} cdot )), neutral oxygen vacancies (O3≡Si–Si≡O3), and nonbridging oxygen defect centers in the silica matrix of glass.","PeriodicalId":580,"journal":{"name":"Glass Physics and Chemistry","volume":"50 4","pages":"347 - 362"},"PeriodicalIF":0.8,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143533041","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0