International Journal of Applied Glass Science最新文献_第5页

Structural stability and proton beam irradiation effects on simulated metal fluoride waste–loaded iron phosphate glass 模拟金属氟化物废料负载磷酸铁玻璃的结构稳定性和质子束辐照效应

IF 2.1 3区材料科学

International Journal of Applied Glass Science Pub Date : 2024-02-27 DOI: 10.1111/ijag.16658

Akhilesh C. Joshi, Mainak Roy, Dimple P. Dutta, Raman K. Mishra, Sher Singh Meena, Ravi Kumar

{"title":"Structural stability and proton beam irradiation effects on simulated metal fluoride waste–loaded iron phosphate glass","authors":"Akhilesh C. Joshi, Mainak Roy, Dimple P. Dutta, Raman K. Mishra, Sher Singh Meena, Ravi Kumar","doi":"10.1111/ijag.16658","DOIUrl":"10.1111/ijag.16658","url":null,"abstract":"Next-generation nuclear reactor technologies such as the molten salt reactor utilize alkali metal fluoride salts as both fuel and coolant. In the present study, the suitability of iron phosphate glass (IPG) as a vitrification matrix for alkali metal fluoride (NaF, CaF2) and simulated fission product loaded fluoride (NdF3, CeF3, SmF3) waste has been explored. The structural change in the metal fluoride–loaded IPG has been analyzed thoroughly using Raman and fourier transform infrared (FTIR) spectroscopy. Thermal analysis showed that the stability and glass forming ability of IPG improved upon loading the same with various mixed metal fluorides. Mössbauer data and X-ray absorption spectroscopy at Fe K-edge explored the minute changes in the local structure. The effect of radiation emanating from radioactive wastes in the fluoride-loaded IPG has been scrutinized via 4.5 MeV proton beam irradiation. Our study firmly establishes the applicability of IPG as suitable vitrification matrix for radioactive metal fluoride–loaded nuclear wastes.","PeriodicalId":13850,"journal":{"name":"International Journal of Applied Glass Science","volume":"15 3","pages":"292-306"},"PeriodicalIF":2.1,"publicationDate":"2024-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140001830","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

Enhancing bending performance of ultrathin flexible glass through chemical strengthening 通过化学强化提高超薄柔性玻璃的弯曲性能

IF 2.1 3区材料科学

International Journal of Applied Glass Science Pub Date : 2024-02-23 DOI: 10.1111/ijag.16659

Jingyi Mao, Jian Yuan, Zhenqiang Guo, Peijing Tian, Jiachang Zhang, Qi Zhang

{"title":"Enhancing bending performance of ultrathin flexible glass through chemical strengthening","authors":"Jingyi Mao, Jian Yuan, Zhenqiang Guo, Peijing Tian, Jiachang Zhang, Qi Zhang","doi":"10.1111/ijag.16659","DOIUrl":"10.1111/ijag.16659","url":null,"abstract":"Flexible glass with high bending strength is a remarkable component of flexible electronic displays. However, as a brittle material, its bending properties often do not meet requirements of application. To address this challenge, the application of chemical strengthening stands out as a viable approach to significantly bolster scratch resistance and bending strength in flexible glass. This study focuses on a conventional one-step chemical strengthening method, employing molten potassium nitrate, to reinforce ultrathin aluminosilicate glass produced through the secondary down-drawing thermoforming process. Effects of ion-exchange temperature and time on mechanical properties of strengthened 110 µm flexible glass were investigated, and moreover, properties of strengthened ultrathin flexible glass with various thicknesses were compared. The results indicate that, after chemical strengthening at 380°C for 1 h, the compressive stress (CS) of 110 µm glass reaches 864.60 MPa, and the depth of layer is 15.86 µm, at which time the glass has the best bending performance and scratch resistance, and half of the faceplate spacing during glass breakage can be enhanced from 38.02 ± 2.7 to 8.40 ± 0.62 mm. For ultrathin flexible glass from 40 to 110 µm, after treatment at 380°C for 1 h, the CS of thick glass is higher than that of thin glass, and the enhancement of bending performance is better.","PeriodicalId":13850,"journal":{"name":"International Journal of Applied Glass Science","volume":"15 3","pages":"267-275"},"PeriodicalIF":2.1,"publicationDate":"2024-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139951781","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

Vitrification of lead–bismuth alloy nuclear waste into a glass waste form 将铅铋合金核废料矾化成玻璃废料形式

IF 2.1 3区材料科学

International Journal of Applied Glass Science Pub Date : 2024-01-18 DOI: 10.1111/ijag.16656

Xiong Zhou, Chenchen Niu, Kunfeng Li, Peng Lin, Kai Xu

{"title":"Vitrification of lead–bismuth alloy nuclear waste into a glass waste form","authors":"Xiong Zhou, Chenchen Niu, Kunfeng Li, Peng Lin, Kai Xu","doi":"10.1111/ijag.16656","DOIUrl":"10.1111/ijag.16656","url":null,"abstract":"Lead–bismuth eutectic (LBE), a promising coolant in advanced nuclear systems, can be activated by neutrons during nuclear reactor operations. The decommissioning of nuclear facilities would generate lead–bismuth (Pb–Bi) alloy-contaminated nuclear waste. The current metallic nuclear waste treatment approach involves remelting followed by cementitious solidification. This increases the waste volume and the risk of radionuclide migration in groundwater. Therefore, this study developed a method for vitrification of Pb–Bi alloy waste. Different amounts of SiO2 were added at 750–1100°C in the air to turn the simulated LBE waste into glass waste form. The values of the normalized elemental leaching rates (Pb, Bi, Si, Te, and Ni) determined using the 28-day static leaching test were less than .2 g m−2 d−1 and varied with SiO2 addition. Furthermore, a three-stage evolution of the glass structure with SiO2 addition was proposed according to the structural analysis performed using Raman and X-ray photoelectron spectroscopies. The evolution stages were as follows: (i) the stage of heavy metal transition from covalent to ionic heavy metals (7.5 wt% < SiO2 < 15 wt%), (ii) the stage of increase in bridging oxygen (15 wt% < SiO2 < 20 wt%), and (iii) the stage of domination of the Si–O network (20 wt% < SiO2 < 25 wt%). The evolution of the glass structure resulted in varying glass chemical durability. Finally, the glass-forming region of (20–48)PbO–(35–70)Bi2O3–(7.5–25)SiO2 (wt%) and the temperature needed to melt those glasses were determined through the melting test, where radionuclides and toxic heavy metals showed undetectable volatilization during vitrification. Hence, turning LBE waste into glass waste form will be a potential approach for treating Pb–Bi alloy nuclear waste.","PeriodicalId":13850,"journal":{"name":"International Journal of Applied Glass Science","volume":"15 2","pages":"139-147"},"PeriodicalIF":2.1,"publicationDate":"2024-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139499127","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

Regulable surface hydroxyl group content in disperse ultrafine amorphous SiO2 nanoparticles 分散超细无定形二氧化硅纳米颗粒中可调节的表面羟基含量

IF 2.1 3区材料科学

International Journal of Applied Glass Science Pub Date : 2024-01-11 DOI: 10.1111/ijag.16655

Desheng Yang, Tiecheng Cai, Hongbing Yang, Wei Wei, Qian Guo, Jialing Liu, Xiaojuan Yan, Yuanyuan Li, Jie Zhang, Jiangong Li

引用次数: 0

Impact of impurities on the thermal properties of a Li2S–SiS2–LiPO3 glass 杂质对 Li2S-SiS2-LiPO3 玻璃热性能的影响

IF 2.1 3区材料科学

International Journal of Applied Glass Science Pub Date : 2024-01-09 DOI: 10.1111/ijag.16654

Jacob Wheaton, Steve W. Martin

{"title":"Impact of impurities on the thermal properties of a Li2S–SiS2–LiPO3 glass","authors":"Jacob Wheaton, Steve W. Martin","doi":"10.1111/ijag.16654","DOIUrl":"10.1111/ijag.16654","url":null,"abstract":"The preparation of 0.58 Li2S + 0.315 SiS2 + 0.105 LiPO3 glass, and the impacts of polysulfide and P1P defect structure impurities on the glass transition temperature (Tg), crystallization temperature (Tc), working range (ΔT≡ Tc - Tg), fragility index, and the Raman spectra were evaluated using statistical analysis. In this study, 33 samples of this glass composition were synthesized through melt-quenching. Thermal analysis was conducted to determine the glass transition temperature, crystallization temperature, working range, and fragility index through differential scanning calorimetry. The quantity of the impurities described above was determined through Raman spectroscopy peak analysis. Elemental sulfur was doped into a glass to quantify the wt% sulfur content in the glasses. Linear regression analysis was conducted to determine the impact of polysulfide impurities and P1P defect impurities on the thermal properties. Polysulfide impurities were found to decrease the Tg at rate of nearly 12°C per 1 wt% increase in sulfur concentration. The sulfur concentration does not have a statistically significant impact on the other properties (α = 0.05). The P1P defect structure appears to decrease the resistance to crystallization of the glass by measurably decreasing the working range of the glasses, but further study is necessary to fully quantify and determine this.","PeriodicalId":13850,"journal":{"name":"International Journal of Applied Glass Science","volume":"15 3","pages":"317-328"},"PeriodicalIF":2.1,"publicationDate":"2024-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ijag.16654","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139415627","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}

引用次数: 0

Electrochemical behavior and degradation mechanism of lithium disilicate glass ceramics in acidic environment 二硅酸锂玻璃陶瓷在酸性环境中的电化学行为和降解机理

IF 2.1 3区材料科学

International Journal of Applied Glass Science Pub Date : 2024-01-04 DOI: 10.1111/ijag.16653

Soraya Lakhloufi, Najoua Labjar, Houda Labjar, Malika Serghini-Idrissi, Souad El Hajjaji

{"title":"Electrochemical behavior and degradation mechanism of lithium disilicate glass ceramics in acidic environment","authors":"Soraya Lakhloufi, Najoua Labjar, Houda Labjar, Malika Serghini-Idrissi, Souad El Hajjaji","doi":"10.1111/ijag.16653","DOIUrl":"10.1111/ijag.16653","url":null,"abstract":"IPS e.max Press, a lithium disilicate-based glass ceramic, is renowned in dental restorations for its mechanical strength and aesthetic appeal. This study delves into its behavior within oral environments, employing electrochemical and surface analysis techniques. By utilizing cyclic polarization curves and impedance spectroscopy, we evaluated its degradation resistance. Surface morphology, composition, and crystal stability were explored through scanning electron microscopy (SEM)/energy-dispersive X-ray spectroscopy (EDX) and X-ray powder diffraction (XRD) analysis. The glass ceramic exhibited robust resistance to localized degradation across all tested electrolytes. The degradation potential (Ecorr) varied with time and pH, indicating electrolyte influence. SEM/EDX affirmed oxide layer formation, while XRD confirmed a stable structure. While showcasing favorable resistance in saliva, citric acid, and lactic acid, IPS e.max Press demonstrated susceptibility to acetic acid. This comprehensive analysis enhances our understanding, providing valuable insights for the development of durable dental materials through a combination of electrochemical analysis and surface characterization.","PeriodicalId":13850,"journal":{"name":"International Journal of Applied Glass Science","volume":"15 2","pages":"148-166"},"PeriodicalIF":2.1,"publicationDate":"2024-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139387410","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

Effective thermal conductivity of fiberglass insulation 玻璃纤维隔热材料的有效导热率

IF 2.1 3区材料科学

International Journal of Applied Glass Science Pub Date : 2023-12-28 DOI: 10.1111/ijag.16652

Manoj K. Choudhary, Walter Eastes

{"title":"Effective thermal conductivity of fiberglass insulation","authors":"Manoj K. Choudhary, Walter Eastes","doi":"10.1111/ijag.16652","DOIUrl":"10.1111/ijag.16652","url":null,"abstract":"Globally, the operational energy usage in buildings accounts for about 30% of the final energy consumption and 26% of the energy-related emissions. In 2022, the building sector recorded 132 EJ in energy usage and 9.8 Gt of CO2 emissions. Energy-intensive space heating and air conditioning play a significant role in these statistics, with slightly over half of US home energy usage attributed to them. Thus, energy-efficient buildings, incorporating effective thermal insulation, are essential for addressing climate change. Fiberglass is the dominant insulation material used in US homes, comprising about 71% of installations. The paper discusses the fundamental aspects of heat transfer in fibrous insulation in general and fiberglass insulation in particular. The thermal performance of a fibrous insulation is characterized by an effective thermal conductivity, which combines conductive and radiative terms. The former represents heat conduction through the gas–fiber network and the latter the absorption and the scattering of thermal radiation by the fibers. The paper describes mathematical formulations for these terms and presents results showing the dependence of the effective conductivity on insulation density, fiber diameter, and temperature. The predicted values of the effective conductivity are found to be in good agreement with the measured ones.","PeriodicalId":13850,"journal":{"name":"International Journal of Applied Glass Science","volume":"15 3","pages":"307-316"},"PeriodicalIF":2.1,"publicationDate":"2023-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139055883","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

Rheology of a sodium-molybdenum borosilicate melt undergoing phase separation 发生相分离的硼硅酸钼钠熔体的流变学特性

IF 2.1 3区材料科学

International Journal of Applied Glass Science Pub Date : 2023-12-17 DOI: 10.1111/ijag.16650

Luiz Pereira, Sophie Schuller, Fabian B. Wadsworth, Jérémie Vasseur, Ricardo F. Lancelotti, Kai-Uwe Hess, Stéphane Gossé, Donald B. Dingwell

{"title":"Rheology of a sodium-molybdenum borosilicate melt undergoing phase separation","authors":"Luiz Pereira, Sophie Schuller, Fabian B. Wadsworth, Jérémie Vasseur, Ricardo F. Lancelotti, Kai-Uwe Hess, Stéphane Gossé, Donald B. Dingwell","doi":"10.1111/ijag.16650","DOIUrl":"10.1111/ijag.16650","url":null,"abstract":"During glass production, phase separation can result in the formation of suspended liquid droplets, which can cause changes in the system rheology. In nuclear waste vitrification context, some new glassy matrices may present this phase separation matter, but the mechanisms controlling the viscosity changes have not yet been determined. Here, we measure the viscosity of a sodium-borosilicate melt containing dissolved MoO3 at different temperatures and subject to different applied shear strain rates. We observe that (i) the viscosity increases sharply as the temperature decreases and (ii) at any constant temperature below 1000°C, the system presents non-Newtonian response. Using transmission electron microscope observations coupled with viscosity calculations, we interpret the cause of the observed changes as the result of phase separation. We show that the viscosity increase on cooling is in excess of the predicted temperature dependence for a homogeneous melt of the starting composition. The increase is due to the formation of a second phase and is controlled by chemical and structural modifications of the matrix during the loss of the elements that form the droplets. This work provides insights into the rheology of a system composed of two composition sets due to a miscibility gap.","PeriodicalId":13850,"journal":{"name":"International Journal of Applied Glass Science","volume":"15 2","pages":"127-138"},"PeriodicalIF":2.1,"publicationDate":"2023-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ijag.16650","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138717441","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}

引用次数: 0

Thermally matched chalcogenide glasses with high refractive index contrast for infrared graded-index lenses 具有高折射率对比度的热匹配卤化玻璃，用于红外分级指数透镜

IF 2.1 3区材料科学

International Journal of Applied Glass Science Pub Date : 2023-12-07 DOI: 10.1111/ijag.16651

Qian Chen, Anping Yang, Cheng Ma, Zhijie Yang, Zijun Liu, Xiang Shen, Zhiyong Yang

{"title":"Thermally matched chalcogenide glasses with high refractive index contrast for infrared graded-index lenses","authors":"Qian Chen, Anping Yang, Cheng Ma, Zhijie Yang, Zijun Liu, Xiang Shen, Zhiyong Yang","doi":"10.1111/ijag.16651","DOIUrl":"10.1111/ijag.16651","url":null,"abstract":"Infrared graded-index (GRIN) lenses are desirable for realizing miniaturization and lightweight of infrared imaging systems. Chalcogenide glasses have excellent infrared transparency, good rheological property, and large refractive index range, making them preferred materials for infrared GRIN lenses. In this work, aiming to find thermally matched chalcogenide compositions with high refractive index contrast for preparing GRIN glasses by the stacking diffusion approach, we investigated characteristic temperature, thermal expansion coefficient and refractive index of Ge-As-Se and Ge-As-Se-Te glasses, optimized the glass compositions, and evaluated the feasibility of preparing GRIN glass using the optimized chalcogenide glass powders. It is found that Ge20As20Se20Te40 and Ge12As22Se66 glasses have similar softening temperature (247°C vs. 249°C), reasonably difference of thermal expansion coefficient (3.8 ppm/K), and large refractive index contrast (∼.48). The glass powders with composition xGe20As20Se20Te40-(1-x) Ge12As22Se66 can be hot-pressed into glass disks with good transmittance at the same temperature and pressure. Graded refractive index profile is formed near the interface between the layers after the co-pressed glass is thermally treated. These results demonstrate the prospect of the compositions for preparing infrared GRIN glasses.","PeriodicalId":13850,"journal":{"name":"International Journal of Applied Glass Science","volume":"15 2","pages":"119-126"},"PeriodicalIF":2.1,"publicationDate":"2023-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138593946","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

Modeling and optimization of the sagging process for large-size and high-purity silica glass synthesis 大尺寸高纯度硅玻璃合成的下垂工艺建模与优化

IF 2.1 3区材料科学

International Journal of Applied Glass Science Pub Date : 2023-12-07 DOI: 10.1111/ijag.16649

Chengshuai Li, Suping Yin, Qianli Ma, Haisheng Fang

{"title":"Modeling and optimization of the sagging process for large-size and high-purity silica glass synthesis","authors":"Chengshuai Li, Suping Yin, Qianli Ma, Haisheng Fang","doi":"10.1111/ijag.16649","DOIUrl":"10.1111/ijag.16649","url":null,"abstract":"Glass sagging is a subsequent process to the CVD process used for large-size and high-purity silica glass synthesis. Physical phenomena taking place in this process are complicated which need an in-depth understanding for better control. In this paper, a comprehensive study is conducted for the sagging process using a level-set and enthalpy-porosity coupled model. With this model, the deforming behavior of glass ingot and evolution of OH uniformly distributed region are well predicted. Then, two performance indices (the effective yield rate and maximum extension radius of OH uniformly distributed region) are proposed based on different applications, and important factors, including geometrical parameters (the ingot initial length, crucible diameter and pedestal height) and operating parameter (the heater power allocation scheme), are explored for their effects on the two indices. The orthogonal test design method is adopted to further determine the collective effects of the four factors. According to the range analysis results, the initial ingot length has the greatest effect, while the crucible diameter has the least effect on the effective yield rate; and for the maximum extension radius, the crucible diameter becomes the major factor, while the pedestal height is the most insensitive factor. The corresponding optimal schemes are proposed for the two indices finally, which are believed to provide useful guidance for improving the sagging process.","PeriodicalId":13850,"journal":{"name":"International Journal of Applied Glass Science","volume":"15 2","pages":"167-181"},"PeriodicalIF":2.1,"publicationDate":"2023-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138592021","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