Journal of Non-crystalline Solids最新文献_第10页

Thermodynamic and kinetic investigation on crystallization of photosensitive glass-ceramics via molecular dynamics 光敏微晶玻璃结晶的分子动力学和热力学研究

IF 3.2 3区材料科学

Journal of Non-crystalline Solids Pub Date : 2024-11-28 DOI: 10.1016/j.jnoncrysol.2024.123332

Weirong Huo , Guoqing Wang , Tianlai Yu , Bin Hu , Gang Ye , Bin Lin

{"title":"Thermodynamic and kinetic investigation on crystallization of photosensitive glass-ceramics via molecular dynamics","authors":"Weirong Huo , Guoqing Wang , Tianlai Yu , Bin Hu , Gang Ye , Bin Lin","doi":"10.1016/j.jnoncrysol.2024.123332","DOIUrl":"10.1016/j.jnoncrysol.2024.123332","url":null,"abstract":"<div><div>Photosensitive glass-ceramics serves as a crucial support for advancement of integrated circuits in post Moore era. Nevertheless, current research lacks an in-depth discussion of crystallization and nucleation mechanisms induced by nucleating agents. Here, we select new AgSbO3 nucleating agents and conduct a detailed thermodynamic and kinetic investigation of its promoting effects in Li2SiO3 using first-principles molecular dynamics. Statistical results from pair distribution functions indicate that in the presence of AgSbO3 nucleating agents in Li2SiO3, the structure tends to exhibit a more crystalline distribution. The diffusion coefficient of Li ions in AgSbO3–Li2SiO3 is 0.47 × 10–6 cm2/s, which is one-tenth of the value of Li ions in amorphous Li2SiO3. Additionally, a molecular dynamics approach was employed to screen and analyze motion trajectories of 16 lithium ions. All of these data suggest that AgSbO3 nucleating agents can accelerate crystallization of Li2SiO3. This work provides an atomic-scale discussion of nucleating agents' effects in photosensitive glass-ceramics.</div></div>","PeriodicalId":16461,"journal":{"name":"Journal of Non-crystalline Solids","volume":"649 ","pages":"Article 123332"},"PeriodicalIF":3.2,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142744114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

On the formation of metallic glass 关于金属玻璃的形成

IF 3.2 3区材料科学

Journal of Non-crystalline Solids Pub Date : 2024-11-28 DOI: 10.1016/j.jnoncrysol.2024.123329

Jian Guo Wang

引用次数: 0

Transmittance enhancement of amorphous SiO2 via ultraviolet irradiation to eliminate atomic defects 通过紫外线辐照消除原子缺陷，提高无定形二氧化硅的透射率

IF 3.2 3区材料科学

Journal of Non-crystalline Solids Pub Date : 2024-11-27 DOI: 10.1016/j.jnoncrysol.2024.123328

Yongnian Qi, Xiaoguang Guo, Zhuang Song, Wanxue Zhang, Xing Gao, Ping Zhou

引用次数: 0

Study of the magnetic and magnetocaloric properties of amorphous alloys formed by the ErxFe100−x series 由 ErxFe100-x 系列形成的非晶合金的磁性和磁致性研究

IF 3.2 3区材料科学

Journal of Non-crystalline Solids Pub Date : 2024-11-27 DOI: 10.1016/j.jnoncrysol.2024.123336

V.L.O. Freitas, P.P. Almeida Neto, S.S. Costa, B.P. Alho, P.O. Ribeiro, V.S.R. de Sousa, P.J. von Ranke, E.P. Nóbrega

{"title":"Study of the magnetic and magnetocaloric properties of amorphous alloys formed by the ErxFe100−x series","authors":"V.L.O. Freitas, P.P. Almeida Neto, S.S. Costa, B.P. Alho, P.O. Ribeiro, V.S.R. de Sousa, P.J. von Ranke, E.P. Nóbrega","doi":"10.1016/j.jnoncrysol.2024.123336","DOIUrl":"10.1016/j.jnoncrysol.2024.123336","url":null,"abstract":"<div><div>In this work, we investigate the magnetic and thermodynamic properties and the magnetocaloric effect of amorphous alloys formed from the series <math><mrow><msub><mrow><mi>Er</mi></mrow><mrow><mi>x</mi></mrow></msub><msub><mrow><mi>Fe</mi></mrow><mrow><mn>100</mn><mo>−</mo><mi>x</mi></mrow></msub></mrow></math>. To calculate the quantities on which the study is based, we use a Hamiltonian of interacting spins with two magnetic sublattices treated by the HPZ model, a modified Heisenberg Hamiltonian, in which each ionic spin is subject to a local anisotropy field of random orientation. The amorphous alloys studied present ferrimagnetic phase transitions, explained by the magnetic matrix composed of Er and Fe atoms. As a consequence, depending on the Fe doping, compensation temperatures, and inverse magnetocaloric effects are observed. Considerable values of refrigerant capacity in units of J kg<math><msup><mrow></mrow><mrow><mo>−</mo><mn>1</mn></mrow></msup></math> under the variation of 5 <math><mi>T</mi></math> of the applied magnetic field were found: 364, 380, 349, 291, and 237 for <math><mrow><mi>x</mi><mo>=</mo><mn>8</mn><mo>.</mo><mn>5</mn><mo>,</mo><mn>10</mn><mo>,</mo><mn>16</mn><mo>.</mo><mn>5</mn><mo>,</mo><mn>21</mn><mo>.</mo><mn>5</mn></mrow></math> and 28, respectively.</div></div>","PeriodicalId":16461,"journal":{"name":"Journal of Non-crystalline Solids","volume":"649 ","pages":"Article 123336"},"PeriodicalIF":3.2,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142723999","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Numerical simulation of temperature in forming surroundings for E-Glass fiber 电子玻璃纤维成型环境温度的数值模拟

IF 3.2 3区材料科学

Journal of Non-crystalline Solids Pub Date : 2024-11-27 DOI: 10.1016/j.jnoncrysol.2024.123339

Zushan Zhang , Xiangchun Ning , Shaobo Wang , Lipeng Tian , Tianyong Zheng

{"title":"Numerical simulation of temperature in forming surroundings for E-Glass fiber","authors":"Zushan Zhang , Xiangchun Ning , Shaobo Wang , Lipeng Tian , Tianyong Zheng","doi":"10.1016/j.jnoncrysol.2024.123339","DOIUrl":"10.1016/j.jnoncrysol.2024.123339","url":null,"abstract":"<div><div>In spinning, the temperature of the glass melt and the forming surroundings play a crucial role in determining the diameter of the electrical glass (E-glass) filament. It is essential to control or predict the temperature of the forming surroundings. In this study, a simplified cooling model of the fin for G75 E-glass fiber was constructed and simulated to explore the influence of ambient temperature on the forming process of E-glass fiber. The multi-physical field coupling of solid-fluid conjugate heat transferring and surface-to-surface radiation imitates the cooling model. The temperature of the bottom of the bushing plate was measured with an infrared thermal imaging instrument, and the ambient temperature of the area of filament root forming was measured with a thermocouple. Considering the device is fixed, the key experimental variable of the numerical simulation is the distance from the top of the cooling fin to the bottom surface of the bushing plate. The simulated results are compared with the actual measurements, proving that it is feasible for the simplified cooling model to simulate the forming of E-glass fiber. The results of numerical simulations also show that (1) the temperature of the glass melt at the outlet of the nozzle is 1400 K and the ambient temperature of the filament root forming dropped by >500 K; (2) when the top of the cooling fin is 4 mm away from the bottom surface of the bushing plate, the fin has the best cooling effect on the E-glass fiber.</div></div>","PeriodicalId":16461,"journal":{"name":"Journal of Non-crystalline Solids","volume":"649 ","pages":"Article 123339"},"PeriodicalIF":3.2,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142723998","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Low thermal expansion coefficient LAS glass-ceramics with petalite as the main crystal phase 以辉绿岩为主要晶相的低热膨胀系数 LAS 玻璃陶瓷

IF 3.2 3区材料科学

Journal of Non-crystalline Solids Pub Date : 2024-11-26 DOI: 10.1016/j.jnoncrysol.2024.123338

Shuo Tian , Man Zhou , Hao Yang Shen , Jun Jie Huang , Hao Zhang , Kai Ge Liu , Bin He , Ling Bing Kong

{"title":"Low thermal expansion coefficient LAS glass-ceramics with petalite as the main crystal phase","authors":"Shuo Tian , Man Zhou , Hao Yang Shen , Jun Jie Huang , Hao Zhang , Kai Ge Liu , Bin He , Ling Bing Kong","doi":"10.1016/j.jnoncrysol.2024.123338","DOIUrl":"10.1016/j.jnoncrysol.2024.123338","url":null,"abstract":"<div><div>Li2O–Al2O3–SiO2 (LAS) glass-ceramics have been explored for nearly 80 years, due to their special properties, such as low/negative thermal expansion and high ionic conductivity, thus having commercial significance in various fields. In this study, LAS glass-ceramics based on petalite crystals were developed, which have promising mechanical, thermal properties and compactness, making them potential for applications in hollowwares, tablewares, containers, and plate glass industries. With given ratios of Al2O3/SiO2, the crystalline phase is mainly affected by the concentration of Li2O, where the content of Li2O must be sufficiently low to form petalite LiAlSi3O8, thereby avoiding the formation of spodumene LiAlSi2O6. For this reason, CaF2 was selected as a nucleating agent to increase the crystallinity of petalite, while the crystallization behavior of LiAlSi3O8 crystals was analyzed in detail. The average transmittance of 3.0 ± 0.2 mm thick glass-ceramics in the visible light region and infrared light region (400–1200 nm) is higher than 85 %. After crystallization at about 770 °C, the crystal size in the glass-ceramics is 100–200 nm, which is relatively dense and has excellent near-zero expansion coefficient. The minimum CTE(25–325 °C) is 1.0992 ppm/ °C, while the mechanical properties such as Vickers hardness, elastic modulus and flexural strength are significantly improved.</div></div>","PeriodicalId":16461,"journal":{"name":"Journal of Non-crystalline Solids","volume":"649 ","pages":"Article 123338"},"PeriodicalIF":3.2,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142699663","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Quantification of physical aging using two MDSC methods and its effect on initial properties of epoxy films 使用两种 MDSC 方法量化物理老化及其对环氧树脂薄膜初始特性的影响

IF 3.2 3区材料科学

Journal of Non-crystalline Solids Pub Date : 2024-11-25 DOI: 10.1016/j.jnoncrysol.2024.123335

Ismail Kada, Dao Trinh, Sébastien Touzain, Stéphanie Mallarino

{"title":"Quantification of physical aging using two MDSC methods and its effect on initial properties of epoxy films","authors":"Ismail Kada, Dao Trinh, Sébastien Touzain, Stéphanie Mallarino","doi":"10.1016/j.jnoncrysol.2024.123335","DOIUrl":"10.1016/j.jnoncrysol.2024.123335","url":null,"abstract":"<div><div>In this work, the effect of aging times and temperatures on the generation of physical aging (P.A) is investigated, as well as its impact on the physico-chemical and mechanical properties of a model epoxy resin. The DGEBA/Jeffamine D230 system was tested with different amounts of P.A generated by applying steps of varying aging times and temperatures during the cooling. The quantification of P.A is carried out through modulated differential scanning calorimetry (MDSC) using two methods, based on the heat flow or the non-reversing heat flow. The results show that the P.A values obtained with the first method are lower than those obtained by the second method. The theorical model of Kohlrausch-Williams-Watts, used to describe the kinetic behavior of P.A process, showed that the second method underestimates the relaxation time. If no chemical change was observed between systems with and without P.A, the thermo-mechanical analysis showed that physical aging induces a storage modulus increase together with a free volume fraction decrease.</div></div>","PeriodicalId":16461,"journal":{"name":"Journal of Non-crystalline Solids","volume":"649 ","pages":"Article 123335"},"PeriodicalIF":3.2,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142699665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Influence of Bi2O3 on structural and optical characteristics of PbO⋅B2O3⋅Bi2O3⋅SiO2 glasses Bi2O3 对 PbO⋅B2O3⋅Bi2O3⋅SiO2 玻璃结构和光学特性的影响

IF 3.2 3区材料科学

Journal of Non-crystalline Solids Pub Date : 2024-11-25 DOI: 10.1016/j.jnoncrysol.2024.123330

Sumit Chauhan , Rajni Bala , Divya Yadav , Sanjay Gaur

{"title":"Influence of Bi2O3 on structural and optical characteristics of PbO⋅B2O3⋅Bi2O3⋅SiO2 glasses","authors":"Sumit Chauhan , Rajni Bala , Divya Yadav , Sanjay Gaur","doi":"10.1016/j.jnoncrysol.2024.123330","DOIUrl":"10.1016/j.jnoncrysol.2024.123330","url":null,"abstract":"<div><div>In this study, the influence of Bi2O3 on the structural and optical characteristics of the glass samples with the molar composition of 17PbO⋅23B2O3⋅xBi2O3⋅(60-x)SiO2, prepared using the conventional melt quenching approach, is described. X-ray diffraction spectra reveal the amorphous nature of the prepared series. Density (D), molar volume (Vm), glass transition temperature (Tg), and other physical parameters have been evaluated. FTIR spectra show the presence of bismuth as [BiO3] and [BiO6] structural units and of borate as [BO3] and [BO4] structural units. It is found that the increase in non-bridging oxygens can be attributed to the increase in cut-off wavelength and decrease in bandgap energy with the rise in bismuth concentration. Urbach's energy values demonstrate that the presence of Bi2O3 in the existing glass system might affect the defect concentration. All glass samples possess a high refractive index suggesting that the current glasses may be useful for developing non-linear optical systems.</div></div>","PeriodicalId":16461,"journal":{"name":"Journal of Non-crystalline Solids","volume":"649 ","pages":"Article 123330"},"PeriodicalIF":3.2,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142699664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Influence of titanium redox states on luminescence and conductivity in TiO2 -doped borophosphate glass system 掺杂硼磷酸盐的二氧化钛玻璃体系中钛氧化还原态对发光和导电性的影响

IF 3.2 3区材料科学

Journal of Non-crystalline Solids Pub Date : 2024-11-25 DOI: 10.1016/j.jnoncrysol.2024.123334

Rashmi I, Avinash Ingle, Vasundhara Raghuvanshi, H.D. Shashikala, H.S. Nagaraja

{"title":"Influence of titanium redox states on luminescence and conductivity in TiO2 -doped borophosphate glass system","authors":"Rashmi I, Avinash Ingle, Vasundhara Raghuvanshi, H.D. Shashikala, H.S. Nagaraja","doi":"10.1016/j.jnoncrysol.2024.123334","DOIUrl":"10.1016/j.jnoncrysol.2024.123334","url":null,"abstract":"<div><div>Borophosphate glasses have garnered significant interest due to their potential for optical and electronic applications. This research delves into the luminescent and conductive properties of 40P2O5–25B2O3-(35-x) BaO-xTiO2 (x = 0–5 mol%) glasses synthesized via the melt-quench method. The glass doped with 4 mol% TiO2 exhibited intense luminescence within the 400–600 nm spectrum, manifesting as a vivid blue emission and the highest Ti3+ ion concentration. Beyond this threshold, the luminescence intensity waned, highlighting the significance of Ti4+/Ti3+ ratios. Absorption spectra and X-ray photoelectron spectroscopy were utilized to study these multivalent ions. Temperature-dependent AC conductivity, exhibited a linear increase, consistent with the Correlated Barrier Hopping (CBH) model. Enhanced polaron hopping between Ti3+ and Ti4+ with increasing TiO2 content improved the dielectric constant and conductivity, peaking at 4.145×10−5 Scm−1 at 5 mol% TiO2 within the 450–530 °C range. These findings underscore the tunability of TiO2-doped glasses for optoelectronic applications.</div></div>","PeriodicalId":16461,"journal":{"name":"Journal of Non-crystalline Solids","volume":"649 ","pages":"Article 123334"},"PeriodicalIF":3.2,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142699662","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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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CO induces the reduction of Mo in the glass liquid to molybdenum carbide to form glass defects in the hybrid furnace 二氧化碳促使玻璃液中的钼还原成碳化钼，从而在混合炉中形成玻璃缺陷

IF 3.2 3区材料科学

Journal of Non-crystalline Solids Pub Date : 2024-11-23 DOI: 10.1016/j.jnoncrysol.2024.123337

Di Ao, YanXin Li, Xuan Hu, XiGuang Zhou, LiFan Wu, Liang Song, Tuo Wang, JinLu Jiang, XiaoJian Zhang, XiaoYong Kou

引用次数: 0