Journal of Non-crystalline Solids最新文献

Impact of replacing Na+ with Ag+ on the optical and spectroscopic properties of Er3+-doped tellurite glasses Ag+取代Na+对Er3+掺杂碲酸盐玻璃光学和光谱性能的影响

IF 3.2 3区材料科学

Journal of Non-crystalline Solids Pub Date : 2025-07-24 DOI: 10.1016/j.jnoncrysol.2025.123708

Iuliia Kraskowski, Khaldoon Nasser, Chloe Hannesse, Laeticia Petit

{"title":"Impact of replacing Na+ with Ag+ on the optical and spectroscopic properties of Er3+-doped tellurite glasses","authors":"Iuliia Kraskowski, Khaldoon Nasser, Chloe Hannesse, Laeticia Petit","doi":"10.1016/j.jnoncrysol.2025.123708","DOIUrl":"10.1016/j.jnoncrysol.2025.123708","url":null,"abstract":"<div><div>Er<sup>3+</sup> doped tellurite glasses have attracted significant interest due to their broad emission band at 1.5 µm, the telecommunication window. Among them, the glasses in the TeO<sub>2</sub>-ZnO-Na<sub>2</sub>O system are particularly suitable for waveguide fabrication using ion exchange. This study investigates the impact of substituting Na<sub>2</sub>O with Ag<sub>2</sub>O in the tellurite glass doped with Er<sup>3+</sup> ions on its optical and spectroscopic properties, as well as its chemical durability when immersed in AgNO<sub>3</sub>-KNO<sub>3</sub>-NaNO<sub>3</sub> molten salt baths, usually used for Ag<sup>+</sup>-Na<sup>+</sup> exchange. The replacement of Na<sub>2</sub>O with Ag<sub>2</sub>O leads to an increase in thermal stability and refractive index due to the depolymerization of the glass network. When immersed in Ag-containing salt baths, the glass surface reacts with the molten salt bath, the reaction of which depends on the glass and molten salt bath composition. Diffusion of Ag<sup>+</sup> and preferential etching of TeO<sub>2</sub> can be obtained, as well as surface crystallization. The glass with the composition 80 TeO<sub>2</sub> – 10 ZnO – 10 Na<sub>2</sub>O (in mol%) was found to be the most stable in the molten salt bath probably due to its polymerized network and so the most suitable glass for ion exchange processes and waveguide fabrication.</div></div>","PeriodicalId":16461,"journal":{"name":"Journal of Non-crystalline Solids","volume":"666 ","pages":"Article 123708"},"PeriodicalIF":3.2,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144697037","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

Theoretical investigation of interaction between 3.8µm laser and fused silica based on the measurement of temperature dependent absorption coefficient 基于温度依赖吸收系数测量的3.8µm激光与熔融石英相互作用的理论研究

IF 3.2 3区材料科学

Journal of Non-crystalline Solids Pub Date : 2025-07-24 DOI: 10.1016/j.jnoncrysol.2025.123713

Guobin Zhang , Yunxiang Pan , Zhonghua Shen , Hongchao Zhang , Tu Xu , Zewen Li , Jian Lu , Bayanheshig

{"title":"Theoretical investigation of interaction between 3.8µm laser and fused silica based on the measurement of temperature dependent absorption coefficient","authors":"Guobin Zhang , Yunxiang Pan , Zhonghua Shen , Hongchao Zhang , Tu Xu , Zewen Li , Jian Lu , Bayanheshig","doi":"10.1016/j.jnoncrysol.2025.123713","DOIUrl":"10.1016/j.jnoncrysol.2025.123713","url":null,"abstract":"<div><div>The absorption coefficient of fused silica in the mid-infrared (IR) range lies between those at near-IR and far-IR wavelengths. Consequently, mid-IR lasers offer both high energy coupling efficiency and deeper penetration depth, providing a significant advantage for laser repair of optical component damage. In this study, an experimental setup was established to measure the temperature dependent absorption coefficient of fused silica at a wavelength of 3.8 µm. The experimental results indicate that the absorption coefficient of fused silica at 3.8 µm increases linearly with temperature. When the temperature reaches 2000 K, the absorption coefficient increases to 1004 m<sup>-1</sup>, approximately 1/200 of the absorption coefficient at 10.6 µm. Furthermore, based on the measured absorption coefficient, a simulation model for the interaction of 3.8 µm laser with fused silica was established. The simulated ablation morphology is in good agreement with reported experimental results, and the variation in the reflected signal corresponds to the increase in material temperature to the softening point, as well as the retreat of the air-liquid interface.</div></div>","PeriodicalId":16461,"journal":{"name":"Journal of Non-crystalline Solids","volume":"666 ","pages":"Article 123713"},"PeriodicalIF":3.2,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144697038","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

Improving the processability of plane flow casting and quality of amorphous ribbons for high Bs Fe-Co-Si-B-P-C alloy by the purification of melts 通过对熔体进行净化，提高高硼Fe-Co-Si-B-P-C合金平面流动铸造的加工性和非晶带的质量

IF 3.2 3区材料科学

Journal of Non-crystalline Solids Pub Date : 2025-07-22 DOI: 10.1016/j.jnoncrysol.2025.123705

Qian Zhang , Hao Wang , Kuang Lv , Fang Wang , Chuntao Chang , Haichen Yu , Guangqiang Zhang , Shaoxiong Zhou , Xidong Hui

{"title":"Improving the processability of plane flow casting and quality of amorphous ribbons for high Bs Fe-Co-Si-B-P-C alloy by the purification of melts","authors":"Qian Zhang , Hao Wang , Kuang Lv , Fang Wang , Chuntao Chang , Haichen Yu , Guangqiang Zhang , Shaoxiong Zhou , Xidong Hui","doi":"10.1016/j.jnoncrysol.2025.123705","DOIUrl":"10.1016/j.jnoncrysol.2025.123705","url":null,"abstract":"<div><div>The presence of impurities and inclusions in raw materials represents a critical bottleneck in the industrial production of Fe-Si-B-C amorphous alloys, adversely affecting both the success rate of plane flow casting and the quality of the resulting ribbons. In this work, we elucidate the evolution of total oxygen content (T[O]) and characterize inclusions in the melt throughout the production process. By optimizing smelting and holding parameters, T[O] was maintained below 10 ppm at all stages. Inclusions-primarily oxides and complex silicates-exhibited spherical, triangular, or quadrilateral morphologies with sizes below 10 µm. Reducing inclusion density markedly enhanced plane castability, surface smoothness, lamination factor, and ductility. To achieve this, we developed a two-step purification approach combining argon bubbling via a dispersion gas-permeable brick with a zirconia-based foam-ceramic filter, lowering inclusion densities to below 200 inclusions mm<sup>−2</sup> and effectively preventing nozzle clogging. Finally, on a ten-million-ton-level production line, we produced Fe<sub>80</sub>Co<sub>3</sub>Si<sub>1</sub>B<sub>11</sub>P<sub>4</sub>C<sub>1</sub> amorphous ribbons with defect-free surfaces and a saturation magnetic flux density (B<sub>s</sub>) of 1.68 T These results demonstrate that rigorous inclusion control enables the industrial-scale manufacture of high-B<sub>s</sub> Fe-Co-Si-B-P-C amorphous ribbons.</div></div>","PeriodicalId":16461,"journal":{"name":"Journal of Non-crystalline Solids","volume":"666 ","pages":"Article 123705"},"PeriodicalIF":3.2,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144686275","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

Properties evaluation of electric smelting furnace slag: Viscosity and sulfide capacity under different MgO and FeO content 电炉炉渣性能评价：不同MgO和FeO含量下的粘度和硫化容量

IF 3.2 3区材料科学

Journal of Non-crystalline Solids Pub Date : 2025-07-22 DOI: 10.1016/j.jnoncrysol.2025.123711

Pang Zhuogang, Liu Wenguo, Zheng Jianlu, Wang Jingsong, Xue Qingguo, Zuo Haibin

{"title":"Properties evaluation of electric smelting furnace slag: Viscosity and sulfide capacity under different MgO and FeO content","authors":"Pang Zhuogang, Liu Wenguo, Zheng Jianlu, Wang Jingsong, Xue Qingguo, Zuo Haibin","doi":"10.1016/j.jnoncrysol.2025.123711","DOIUrl":"10.1016/j.jnoncrysol.2025.123711","url":null,"abstract":"<div><div>This study investigated the viscosity and sulfide capacity of electric smelting furnace (ESF) slag with a fixed CaO/SiO<sub>2</sub> mass ratio of 0.8. The sulfide capacity was determined using a gas-slag equilibrium method under a CO-CO<sub>2</sub>-SO<sub>2</sub>-Ar mixed atmosphere, while structural variations were analyzed through Fourier transformation infrared spectroscopy (FTIR), Raman spectroscopy, and X-ray photoelectron spectroscopy (XPS). These techniques collectively elucidated the mechanisms by which FeO and MgO regulate slag viscosity and sulfide capacity through modifications in depolymerization behavior. The addition of MgO (6 wt.%–10 wt.%) increased the viscosity and critical temperature (T<sub>cr</sub>) of slag. The increase in FeO content (5 wt.%–25 wt.%) also reduced slag viscosity. However, due to the phase transformation from spinel to melilite and clinopyroxene, the T<sub>cr</sub> initially decreased before subsequently rising. Additionally, the sulfide capacity of slag increases with the addition of FeO and MgO contents. And the increase amplitude of sulfide capacity during FeO increase from 5 wt.% to 15 wt.% exceeds that observed between 15 wt.% and 25 wt.%. Complementary FTIR, Raman, and XPS spectroscopic analyses demonstrated that FeO and MgO increased free oxygen ion content while reducing the average bridging oxygen number from 2.18 to 1.63, indicating reduced polymerization degree of the slag structure. This structural depolymerization consequently enhances slag fluidity and desulfurization performance. Based on those findings, it is recommended to gradually increase the content of basic oxides, which commensurate with the extent of iron oxide reduction to sustain adequate fluidity and sulfide capacity.</div></div>","PeriodicalId":16461,"journal":{"name":"Journal of Non-crystalline Solids","volume":"666 ","pages":"Article 123711"},"PeriodicalIF":3.2,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144678929","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

Doping ZnO in low boron calcium borosilicate glass-ceramics for high-performance dielectric LTCC substrate 在低硼钙硼硅酸盐微晶玻璃中掺杂ZnO制备高性能介电LTCC衬底

IF 3.2 3区材料科学

Journal of Non-crystalline Solids Pub Date : 2025-07-21 DOI: 10.1016/j.jnoncrysol.2025.123710

Kaiyu Huang , Chaofan Wang , Maoyuan Yang , Qingchao Jia , Wenzhi Wang , Chen Chen , Huidan Zeng , Xiongke Luo

{"title":"Doping ZnO in low boron calcium borosilicate glass-ceramics for high-performance dielectric LTCC substrate","authors":"Kaiyu Huang , Chaofan Wang , Maoyuan Yang , Qingchao Jia , Wenzhi Wang , Chen Chen , Huidan Zeng , Xiongke Luo","doi":"10.1016/j.jnoncrysol.2025.123710","DOIUrl":"10.1016/j.jnoncrysol.2025.123710","url":null,"abstract":"<div><div>CaO-B<sub>2</sub>O<sub>3</sub>-SiO<sub>2</sub> (CBS) glass-ceramics is one of the most widely used commercial low-temperature co-fired ceramic (LTCC) substrate materials due to its excellent dielectric and mechanical properties. However, medium-high boron CBS glass suffers from challenge such as difficulty in melting, volatility and phase separation, leading to its inability to balance the competition between sintering and crystallization. The introduction of ZnO to replace part of the B<sub>2</sub>O<sub>3</sub> may be able to solve the above problems effectively. Specifically, the networks modifier ZnO can be used to reduce sintering temperatures by decreasing network aggregation in the glass. Our study found that the higher the content of ZnO, the more non-bridging oxygen in the glass network, the lower the temperature at which glass-ceramics can be sintered densified. With 4 mol % ZnO, the glass-ceramics can be densified at 850 °C with a dielectric constant of 5.29 and a dielectric loss of 3.12 × 10<sup>–4</sup> at 1 MHz and a bending strength of 174 MPa. This work presents a novel idea for the design of advanced glass-ceramics.</div></div>","PeriodicalId":16461,"journal":{"name":"Journal of Non-crystalline Solids","volume":"666 ","pages":"Article 123710"},"PeriodicalIF":3.2,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144678928","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

Effects of electron irradiation on fibers prepared from the self-developed Chang’E-5 lunar regolith simulant 电子辐照对自行研制的“嫦娥五号”月球风化模拟材料纤维的影响

IF 3.2 3区材料科学

Journal of Non-crystalline Solids Pub Date : 2025-07-19 DOI: 10.1016/j.jnoncrysol.2025.123707

Mengzhao Ding , Yanjie Shi , Lida Luo , Qingwei Wang

{"title":"Effects of electron irradiation on fibers prepared from the self-developed Chang’E-5 lunar regolith simulant","authors":"Mengzhao Ding , Yanjie Shi , Lida Luo , Qingwei Wang","doi":"10.1016/j.jnoncrysol.2025.123707","DOIUrl":"10.1016/j.jnoncrysol.2025.123707","url":null,"abstract":"<div><div>The design of fiber-reinforced composites is considered as a feasible way to withstand the irradiation environment in lunar base construction, and fibers play an important role as reinforcement materials. In this work, we focused on the fiber spinnability of the self-developed Chang’E-5 lunar regolith simulant (LRS) and the effect of the electron irradiation on the structures and properties of the fiber. The results showed that the surface of the irradiated fibers was smooth and no crystal were formed, but the thermal stability of the fibers was altered, with the fiber S4 irradiated at a moderate fluence of 4 × 10<sup>15</sup> e cm<sup>-2</sup> having the lowest thermal stability. In addition, the tensile strength of the fibers showed a tendency to increase and then decrease, with the fiber S4 giving the highest tensile strength. FTIR, Raman and XPS spectroscopic analyses indicated the same trend of degree of polymerization (DOP) and the bridging oxygen (BO) content with tensile strength. The M<span><math><mover><mi>o</mi><mo>¨</mo></mover></math></span>ssbauer spectra revealed that the Fe<sup>3+</sup>and Fe<sup>2+</sup> content in the fibers was changed by electron irradiation, with the S4 fiber exhibiting the highest Fe<sup>3+</sup> content, resulting in more Fe<sup>3+</sup> to form [FeO<sub>4</sub>] tetrahedra, thus strengthening the network structure.</div></div>","PeriodicalId":16461,"journal":{"name":"Journal of Non-crystalline Solids","volume":"666 ","pages":"Article 123707"},"PeriodicalIF":3.2,"publicationDate":"2025-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144662963","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

Orientation effects on strengthening mechanism of network-structured metallic glass composites and nanoglasses 取向对网状金属玻璃复合材料和纳米玻璃强化机理的影响

IF 3.2 3区材料科学

Journal of Non-crystalline Solids Pub Date : 2025-07-17 DOI: 10.1016/j.jnoncrysol.2025.123702

Yongwei Wang , Guangping Zheng , Mo Li

{"title":"Orientation effects on strengthening mechanism of network-structured metallic glass composites and nanoglasses","authors":"Yongwei Wang , Guangping Zheng , Mo Li","doi":"10.1016/j.jnoncrysol.2025.123702","DOIUrl":"10.1016/j.jnoncrysol.2025.123702","url":null,"abstract":"<div><div>Network-structured metallic glass composites (NMGCs), including nano-glass (NG), are characterized by micron- or nano-sized glassy grains interconnected through glassy grain boundaries. The mechanical performance of these composites is strongly influenced by the microstructural parameters such as grain boundary width, grain size distribution, and particularly, grain boundary orientation alignment with respect to the loading axis. This study elucidates the orientation effect of grain boundaries on strengthening mechanisms that has not received due attention by far. Our findings reveal that composites with properly aligned grain boundaries exhibit superior strength compared to those with randomly oriented boundaries. This orientation-dependent strengthening originates from two synergistic mechanisms: controlled initiation of shear bands at properly oriented interfaces, and regulated propagation pathways for local shear during plastic deformation. These results provide insights for optimizing the synthesis of metallic glass composites, highlighting the critical role of grain boundary engineering in developing advanced metallic glass systems with enhanced strength and damage tolerance.</div></div>","PeriodicalId":16461,"journal":{"name":"Journal of Non-crystalline Solids","volume":"666 ","pages":"Article 123702"},"PeriodicalIF":3.2,"publicationDate":"2025-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144655706","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

Effect of W, Ni, and P addition on the glass-forming ability and properties of Fe-based amorphous alloys 添加W、Ni和P对铁基非晶合金非晶形成能力和性能的影响

IF 3.2 3区材料科学

Journal of Non-crystalline Solids Pub Date : 2025-07-16 DOI: 10.1016/j.jnoncrysol.2025.123704

Teng Shan, Jian Gao, Ming Huang, Yuan Qin, Sen Yang

{"title":"Effect of W, Ni, and P addition on the glass-forming ability and properties of Fe-based amorphous alloys","authors":"Teng Shan, Jian Gao, Ming Huang, Yuan Qin, Sen Yang","doi":"10.1016/j.jnoncrysol.2025.123704","DOIUrl":"10.1016/j.jnoncrysol.2025.123704","url":null,"abstract":"<div><div>In this present paper, the effects of varying the W, Ni, and P ratios on the glass-forming ability (GFA), thermal stability, microstructure, and corrosion resistance of Fe<sub>50−</sub><em><sub>x</sub></em><sub>−y</sub>Cr<sub>15</sub>Mo<sub>14</sub>C<sub>15−2/3z</sub>B<sub>6−1/3z</sub>W<sub>x</sub>Ni<sub>y</sub>P<sub>z</sub> alloys (where <em>x</em> = 2, 4, 6 at. %; y, <em>z</em> = 3, 6, 9 at. %) were systematically investigated. The results indicate that the W<sub>4</sub>Ni<sub>3</sub>P<sub>6</sub> alloy composition exhibits the best GFA, producing amorphous alloy ribbons with an average thickness of 57.67 μm. Among the three elements, W has the most significant impact on the thermal stability of the Fe-based amorphous alloys, with both the glass transition temperature (<em>T<sub>g</sub></em>) and crystallization temperature (<em>T<sub>x</sub></em>) increasing as the W content increases. As the cooling rate increases, the microstructure of the W<sub>4</sub>Ni<sub>3</sub>P<sub>6</sub> alloy is gradually refined, eventually forming a fully amorphous structure. Element distribution becomes increasingly uniform, with no noticeable element segregation observed. The corrosion resistance of the W<sub>4</sub>Ni<sub>3</sub>P<sub>6</sub> amorphous alloy ribbons in a 3.5 wt. % NaCl solution is significantly improved. Specifically, the self-corrosion potential is approximately −0.569 V, the corrosion current density is about 3.227 × 10<sup>−6</sup> A/cm², and the alloy exhibits a wider passivation range.</div></div>","PeriodicalId":16461,"journal":{"name":"Journal of Non-crystalline Solids","volume":"666 ","pages":"Article 123704"},"PeriodicalIF":3.2,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144634422","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

Effects of fluid inclusions in quartz sand on fused silica crucible 石英砂中流体包裹体对熔融石英坩埚的影响

IF 3.2 3区材料科学

Journal of Non-crystalline Solids Pub Date : 2025-07-15 DOI: 10.1016/j.jnoncrysol.2025.123701

Xing Li , Guiyuan Zheng , Zechen Hu , Zhiguo Yu , Yongsheng Ji , Lihua Peng , Deren Yang , Xuegong Yu

{"title":"Effects of fluid inclusions in quartz sand on fused silica crucible","authors":"Xing Li , Guiyuan Zheng , Zechen Hu , Zhiguo Yu , Yongsheng Ji , Lihua Peng , Deren Yang , Xuegong Yu","doi":"10.1016/j.jnoncrysol.2025.123701","DOIUrl":"10.1016/j.jnoncrysol.2025.123701","url":null,"abstract":"<div><div>High-purity quartz sands are used to manufacture the fused silica crucibles. However, their influences on gas bubble evolution and cristobalite formation in fused silica crucibles in the Czochralski silicon (Cz-Si) growth process remain unclear. In this work, we propose a method to precisely define and quantitively analyze the fluid inclusion contents of quartz sands through the processing of optical microscope images of quartz sands. Based on it, the gas bubble evolution of two different fused silica crucibles made from two batches of quartz sands are investigated after vacuum annealing treatment for simulating the Cz process. Quantitively analysis shows that higher fluid inclusion contents lead to higher initial gas bubble density, which can further influence the gas bubble evolution during vacuum annealing. In addition, the corresponding analysis on cristobalite formation behavior shows that the fused silica crucibles made of quartz sand with higher alkali metal concentrations are proved to be more prone to the formation of cristobalite during vacuum annealing, although the total concentration is only ∼16 ppm. These results can contribute to the purification and selection of high-purity quartz sands, in particular, special attention should be paid to the further removal of Li, Na and K elements, which helps to improve the high-temperature stability and lifetime of fused silica crucibles.</div></div>","PeriodicalId":16461,"journal":{"name":"Journal of Non-crystalline Solids","volume":"666 ","pages":"Article 123701"},"PeriodicalIF":3.2,"publicationDate":"2025-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144632759","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

Mechanisms of plasticity enhancement in FeCoNi-SiB-Cu high-entropy bulk metallic glass via rejuvenation treatments feconi - sibb - cu高熵大块金属玻璃回春处理增强塑性的机理

IF 3.2 3区材料科学

Journal of Non-crystalline Solids Pub Date : 2025-07-14 DOI: 10.1016/j.jnoncrysol.2025.123698

Xueru Fan , Lei Xie , Qiang Li , Chuntao Chang

{"title":"Mechanisms of plasticity enhancement in FeCoNi-SiB-Cu high-entropy bulk metallic glass via rejuvenation treatments","authors":"Xueru Fan , Lei Xie , Qiang Li , Chuntao Chang","doi":"10.1016/j.jnoncrysol.2025.123698","DOIUrl":"10.1016/j.jnoncrysol.2025.123698","url":null,"abstract":"<div><div>This study investigates the effect of rejuvenation treatments, namely cryogenic thermal cycling (CTC) and cyclic elastic loading (CEL), on the mechanical properties of [Fe<sub>0.25</sub>Co<sub>0.25</sub>Ni<sub>0.25</sub>(Si<sub>0.3</sub>B<sub>0.7</sub>)<sub>0.25</sub>]<sub>99.7</sub>Cu<sub>0.3</sub> high-entropy bulk metallic glass (HE-BMG). The CTC treatment with an upper temperature of 472 K significantly enhances the plasticity, yielding a plastic strain of 20 % and a yield strength of 4500 MPa, due to the formation of increased free volume and short-range ordered structures. Similarly, the CEL treatment at 1300 N improves plastic strain to 16 % with a yield strength of 4200 MPa, resulting from structural heterogeneity and stress distribution modification. However, combining CTC and CEL treatments leads to the growth of hard and brittle Fe(Co, Ni)<sub>23</sub>B<sub>6</sub> phases, causing stress concentrations that reduce plasticity. This work elucidates the mechanisms behind plasticity enhancement and degradation in HE-BMGs and provides a pathway for designing high-strength, high-plasticity metallic glasses through precise structural control at the atomic level.</div></div>","PeriodicalId":16461,"journal":{"name":"Journal of Non-crystalline Solids","volume":"666 ","pages":"Article 123698"},"PeriodicalIF":3.2,"publicationDate":"2025-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144623434","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