Journal of Non-crystalline Solids最新文献_第9页

Quantifying bonding preferences in oxide glass structures across a sub-nanometer scale. I. First coordination sphere 在亚纳米尺度上量化氧化玻璃结构中的键合偏好。一、第一协调领域

IF 3.5 3区材料科学

Journal of Non-crystalline Solids Pub Date : 2026-01-30 Epub Date: 2025-12-02 DOI: 10.1016/j.jnoncrysol.2025.123865

Mattias Edén, Baltzar Stevensson

{"title":"Quantifying bonding preferences in oxide glass structures across a sub-nanometer scale. I. First coordination sphere","authors":"Mattias Edén, Baltzar Stevensson","doi":"10.1016/j.jnoncrysol.2025.123865","DOIUrl":"10.1016/j.jnoncrysol.2025.123865","url":null,"abstract":"<div><div>The degree of disorder across the subnanometer scale of an oxide glass is largely governed by the relative propensities of its network formers (<math><mi>F</mi></math>) and modifiers <math><mrow><mo>(</mo><mi>M</mi><mo>)</mo></mrow></math> to coordinate the bridging oxygen (BO) and non-bridging oxygen (NBO) species, as well as the (non)preferential interlinking of the various network-forming polyhedra. This paper and its sequel examine the bonding-preference concept, which quantifies the degree of preference or reluctance of two atom species to interlink. Unified and consistent definitions of bonding preferences are presented along with critical reviews of previous reports in the field, which remain sparse due to the substantial experimental challenges to quantify bonding preference in glasses and rendering computational modeling the main tool. Because the preference/reluctance for bond formation marks the deviation from a statistical atom/ion intermixing, a rigorous formulation of the latter is required. Potential pitfalls for defining the statistical reference case are discussed. With particular focus on glasses with <math><mi>F</mi></math>={Al, B, Si} as network formers, this article targets the (relative) <math><mi>F</mi></math>–BO/NBO and <math><mi>M</mi></math>–BO/NBO bonding preferences pertaining to the first coordination shells of the {<math><mi>F</mi></math>, <math><mi>M</mi></math>, O} species in the glass, while the preferential <math><mi>F</mi></math>–O–<math><msup><mrow><mi>F</mi></mrow><mrow><mo>′</mo></mrow></msup></math> interlinking and <math><msup><mrow><mi>M</mi></mrow><mrow><mi>z</mi><mo>+</mo></mrow></msup></math>–<math><mi>F</mi></math>O<math><msub><mrow></mrow><mrow><mi>p</mi></mrow></msub></math> associations are examined in the sequel article.</div></div>","PeriodicalId":16461,"journal":{"name":"Journal of Non-crystalline Solids","volume":"673 ","pages":"Article 123865"},"PeriodicalIF":3.5,"publicationDate":"2026-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145681988","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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Dispersion feature of third-order optical nonlinearity of Ge-Ga-S chalcogenide glasses and their superior optical limiting performance Ge-Ga-S硫系玻璃三阶光学非线性色散特性及其优越的光学限制性能

IF 3.5 3区材料科学

Journal of Non-crystalline Solids Pub Date : 2026-01-30 Epub Date: 2025-11-21 DOI: 10.1016/j.jnoncrysol.2025.123886

Tianji Fang , Guangrui Mao , Shixun Dai , Changgui Lin , Tiefeng Xu , Feifei Chen

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Neutron-induced opalescence in silica glass 硅玻璃中的中子诱导乳光

IF 3.5 3区材料科学

Journal of Non-crystalline Solids Pub Date : 2026-01-30 Epub Date: 2025-11-24 DOI: 10.1016/j.jnoncrysol.2025.123889

S.A. Vasiliev, P.F. Kashaykin, A.L. Tomashuk

{"title":"Neutron-induced opalescence in silica glass","authors":"S.A. Vasiliev, P.F. Kashaykin, A.L. Tomashuk","doi":"10.1016/j.jnoncrysol.2025.123889","DOIUrl":"10.1016/j.jnoncrysol.2025.123889","url":null,"abstract":"<div><div>Distribution of light scattering intensity along the length of silica optical fibers irradiated in nuclear reactors was measured by optical time domain reflectometry (OTDR). Longitudinal variations of the OTDR signal (“OTDR traces”) were found to contain two components associated with radiation-induced attenuation of light (RIA), on the one hand, and with longitudinal variation of the Rayleigh scattering coefficient (RSC), on the other. Based on the shape of the OTDR traces and its variation during irradiation, we concluded that the RSC dependence on the fast-neutron fluence is strongly non-monotonic: it features a ∼10-time increase at a fast-neutron fluence of ∼1018–1019 nf/cm2 followed by a fall-off during subsequent irradiation. Such RSC variation with fluence was interpreted as being associated with the formation of thermal spikes – peculiar silica regions ∼10 nm in size. Thermal spikes arise as the result of fast-neutron bombardment of silica and possess a higher fictive temperature and, consequently, a higher density. In the first stage of fast-neutron irradiation (1017 – 1019 nf/cm2), thermal spikes become a factor of silica inhomogeneity to increase RSC. However, as soon as most silica is occupied by thermal spikes, further irradiation, on the contrary, makes silica more homogeneous to reduce RSC. The RSC increase and subsequent fall-off are argued to be similar to the anomalous RSC behavior in solids and liquids in the vicinity of phase transition temperature. For this reason, the RSC behavior upon fast-neutron irradiation can be named neutron-induced opalescence (NIO).</div></div>","PeriodicalId":16461,"journal":{"name":"Journal of Non-crystalline Solids","volume":"673 ","pages":"Article 123889"},"PeriodicalIF":3.5,"publicationDate":"2026-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145616013","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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Preparation and characterization of Ti-Mn-Cu/TiC amorphous alloy composite powders via mechanical alloying 机械合金化制备Ti-Mn-Cu/TiC非晶合金复合粉末及表征

IF 3.5 3区材料科学

Journal of Non-crystalline Solids Pub Date : 2026-01-30 Epub Date: 2025-11-23 DOI: 10.1016/j.jnoncrysol.2025.123869

Zhihui Chen, Jilong Nie, Xin Chen, Haibo Li, Xueyong Chen, Cuiyong Tang

{"title":"Preparation and characterization of Ti-Mn-Cu/TiC amorphous alloy composite powders via mechanical alloying","authors":"Zhihui Chen, Jilong Nie, Xin Chen, Haibo Li, Xueyong Chen, Cuiyong Tang","doi":"10.1016/j.jnoncrysol.2025.123869","DOIUrl":"10.1016/j.jnoncrysol.2025.123869","url":null,"abstract":"<div><div>The Ti-based amorphous alloy system was designed based on the principles of “near mixing enthalpy” and “effective atomic size difference,” leading to a series of compositions formulated as Ti(76–2x)Mn(7 + x)Cu(17+x) (x = 0, 5, 10, 15). Among these, the Ti56Mn17Cu27 composition exhibited the highest degree of amorphization after 60 h of mechanical alloying. Accordingly, this study systematically investigated the influence of TiC powder addition on the glass-forming ability, microstructure, and thermal stability of Ti56Mn17Cu27 alloy powders. The results revealed that in the absence of TiC, residual crystalline phases, mainly Mn solid solution, remained throughout the mechanical alloying process. In contrast, the addition of TiC significantly accelerated the disappearance of residual Mn diffraction peaks, facilitating the formation of Ti-Mn-Cu/TiC amorphous composite powders after 60 h of milling. The incorporation of TiC promoted dislocation multiplication within and around the residual crystalline regions, disrupted local lattice ordering, and enhanced non-equilibrium atomic diffusion, collectively promoting the amorphization process. Furthermore, TiC addition contributed to particle size refinement and improved uniformity in size distribution. Among all studied compositions, the Ti56Mn17Cu27 + 10 wt.% TiC powder demonstrated the highest amorphous phase fraction, the broadest supercooled liquid region (ΔTx = 27.09 °C), and a relatively low crystallization enthalpy, indicating that the optimal TiC content effectively enhances both amorphous phase formation and thermal stability.</div></div>","PeriodicalId":16461,"journal":{"name":"Journal of Non-crystalline Solids","volume":"673 ","pages":"Article 123869"},"PeriodicalIF":3.5,"publicationDate":"2026-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145616444","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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Crystallization of metallic glass as a grain-boundary nucleated process: experimental and theoretical evidence for the grain structure of metallic glasses 金属玻璃晶界成核结晶过程：金属玻璃晶粒结构的实验和理论依据

IF 3.5 3区材料科学

Journal of Non-crystalline Solids Pub Date : 2026-01-30 Epub Date: 2025-11-28 DOI: 10.1016/j.jnoncrysol.2025.123872

Nikolay V. Alekseechkin

{"title":"Crystallization of metallic glass as a grain-boundary nucleated process: experimental and theoretical evidence for the grain structure of metallic glasses","authors":"Nikolay V. Alekseechkin","doi":"10.1016/j.jnoncrysol.2025.123872","DOIUrl":"10.1016/j.jnoncrysol.2025.123872","url":null,"abstract":"<div><div>Analysis of experimental DSC and Avrami curves for the crystallization of metallic glasses based on a new theoretical model of grain-boundary nucleated transformations provides insight into their structure on a mesoscopic scale. In many cases, calorimetric measurements yield two-peak non-isothermal DSC curves and three-stage Avrami plots. It is shown that such shapes of these curves demonstrate nucleation at grain boundaries and thus indicate the grain structure of metallic glasses, which refutes the generally accepted idea of glass as a homogeneous “frozen” liquid obtained as a result of avoiding crystallization. To clarify the conditions for obtaining the indicated curves, isothermal and non-isothermal surface-nucleated crystallization of a spherical particle is considered within the framework of a simple analytical model of nucleation and growth. It is shown that both of these manifestations of grain structure in calorimetric experiments occur only in a certain range of values of the control parameter. In addition, non-isothermality plays a key role in the appearance of two-peak DSC curves.</div></div>","PeriodicalId":16461,"journal":{"name":"Journal of Non-crystalline Solids","volume":"673 ","pages":"Article 123872"},"PeriodicalIF":3.5,"publicationDate":"2026-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145616009","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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Atomistic insights into the hydration behavior of N-A-S-H Gel via Ca2+ substitution: A molecular dynamics simulation study 通过Ca2+取代对N-A-S-H凝胶水化行为的原子观察：分子动力学模拟研究

IF 3.5 3区材料科学

Journal of Non-crystalline Solids Pub Date : 2026-01-30 Epub Date: 2025-11-29 DOI: 10.1016/j.jnoncrysol.2025.123892

Yunliang Cui, Siwei Chen, Lufan Li, Xinquan Wang, Jiaying Liu

{"title":"Atomistic insights into the hydration behavior of N-A-S-H Gel via Ca2+ substitution: A molecular dynamics simulation study","authors":"Yunliang Cui, Siwei Chen, Lufan Li, Xinquan Wang, Jiaying Liu","doi":"10.1016/j.jnoncrysol.2025.123892","DOIUrl":"10.1016/j.jnoncrysol.2025.123892","url":null,"abstract":"<div><div>To elucidate how Ca2+ governs hydration and structural evolution in N-A-S-H gels, this study employs reactive molecular dynamics with ReaxFF simulating systems from calcium-free to full calcium substitution. Moderate calcium substitution (∼25 %) markedly accelerates early polycondensation, increases highly polymerized Si3 and Si4 fractions, and yields compact, continuous three-dimensional networks. Further calcium incorporation intensifies electrostatic shielding and coordination competition, weakening Si-O-(Si/Al) linkages and producing fragmented networks. Bond-order and geometry analyses reveal that Al-O bonds are longer than Si-O bonds, with increasing calcium shortening Al-O via enhanced electrostatic polarization; O-Si-O angles concentrate near 109.5°, while Si-O-Si peaks (∼140°) exhibit rightward shift and broadening with calcium, reflecting increased structural disorder; O-Al-O distributions broaden considerably, with five-coordinate aluminum comprising 65–80 % of environments. Nanoporosity evaluation shows calcium incorporation increases pore volume from ∼22 % (low substitution) to >28 % (high calcium), whereas optimal low-calcium systems exhibit smaller porosity and denser networks. These nanoscale characteristics directly correlate with macroscopic mechanical properties: optimal calcium substitution (∼25 %) balances accelerated polymerization with dense network formation, yielding superior load-bearing capacity and durability, while excessive calcium compromises structural integrity. Overall, appropriate Ca2+ levels promote framework formation through bridging and charge compensation, while excessive calcium suppresses cross-linking—thereby determining gel density, stability, and mechanical performance.</div></div>","PeriodicalId":16461,"journal":{"name":"Journal of Non-crystalline Solids","volume":"673 ","pages":"Article 123892"},"PeriodicalIF":3.5,"publicationDate":"2026-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145616010","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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Evolution mechanisms of gas bubbles in high-purity quartz glass 高纯石英玻璃中气泡的演化机理

IF 3.5 3区材料科学

Journal of Non-crystalline Solids Pub Date : 2026-01-15 Epub Date: 2025-11-05 DOI: 10.1016/j.jnoncrysol.2025.123856

Huili Zhou , Guiyuan Zheng , Zechen Hu , Panting Wang , Yiting Tao , Jie Huang , Deren Yang , Xuegong Yu

{"title":"Evolution mechanisms of gas bubbles in high-purity quartz glass","authors":"Huili Zhou , Guiyuan Zheng , Zechen Hu , Panting Wang , Yiting Tao , Jie Huang , Deren Yang , Xuegong Yu","doi":"10.1016/j.jnoncrysol.2025.123856","DOIUrl":"10.1016/j.jnoncrysol.2025.123856","url":null,"abstract":"<div><div>High-purity quartz glass is widely used in semiconductor, photovoltaic, biological and other high-tech fields by its superior physical and chemical properties. Gas bubbles are one of the main defects in high-purity quartz glass. In this work, high-purity quartz glasses were prepared by induction heating method, the gas bubbles in the glass melt were retained through rapid cooling. The evolution mechanisms of gas bubble size and distribution in radial and longitudinal directions due to the extending holding time at the highest temperature were investigated. The results show that in the radial direction, the average bubble size increases with holding time due to Ostwald ripening, while the number of gas bubbles of different sizes and their accumulated area exhibit a rapid initial decrease followed by a gradual decline, which can be ascribed to the bubble dissolution; in the longitudinal direction, the gas bubbles in the center region are the fewest, and the accumulated bubble-count increases with distance from the centre, this consistent trend across different holding time indicates negligible gas bubble rising; the average size of the gas bubbles at the top increases monotonically with holding time, while the accumulated bubble-count remains nearly constant, suggesting that gas bubbles at the top absorb the gas from glass and grow. Raman spectroscopic showed the presence of CO in gas bubbles. This work investigates the evolution of gas bubbles in high-purity quartz glass, contributing to a deeper understanding of gas bubble behavior and its underlying mechanism.</div></div>","PeriodicalId":16461,"journal":{"name":"Journal of Non-crystalline Solids","volume":"672 ","pages":"Article 123856"},"PeriodicalIF":3.5,"publicationDate":"2026-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145442458","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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Investigation of the influence of nonlinear absorption properties on glass modification induced by femtosecond laser irradiation 非线性吸收特性对飞秒激光辐照玻璃改性影响的研究

IF 3.5 3区材料科学

Journal of Non-crystalline Solids Pub Date : 2026-01-15 Epub Date: 2025-11-12 DOI: 10.1016/j.jnoncrysol.2025.123867

Zheli Lin , Luyao Xu , Jinchi Wu , Xinquan Zhang , Mingjun Ren , Limin Zhu , Yoshio Hayasaki , Honghao Zhang , Peng Wang

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Effect of optical basicity on the wetting behavior of glass Frit on SiNx passivation layers 光学碱度对玻璃熔块在SiNx钝化层上润湿行为的影响

IF 3.5 3区材料科学

Journal of Non-crystalline Solids Pub Date : 2026-01-15 Epub Date: 2025-11-08 DOI: 10.1016/j.jnoncrysol.2025.123863

Zihao Sun , Ting Ye , Qian Li , Yinghu Sun , Jiachen Wang , Shenghua Ma

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Correlative analysis of electrical-structural properties of 60B2O3.15ZnO.xLi2O.(25-x)Bi2O3 glass system 60B2O3.15ZnO.xLi2O电结构性能的相关分析。（25-x）Bi2O3玻璃体系

IF 3.5 3区材料科学

Journal of Non-crystalline Solids Pub Date : 2026-01-15 Epub Date: 2025-11-08 DOI: 10.1016/j.jnoncrysol.2025.123854

Manju Bala , Neha Sehrawat , Preeti Sharma , Jaswant K. Yadav , Sajjan Dahiya , R. Punia

{"title":"Correlative analysis of electrical-structural properties of 60B2O3.15ZnO.xLi2O.(25-x)Bi2O3 glass system","authors":"Manju Bala , Neha Sehrawat , Preeti Sharma , Jaswant K. Yadav , Sajjan Dahiya , R. Punia","doi":"10.1016/j.jnoncrysol.2025.123854","DOIUrl":"10.1016/j.jnoncrysol.2025.123854","url":null,"abstract":"<div><div>The electrical conductivity of 60B2O3.15ZnO.xLi2O.(25-x)Bi2O3 glass system has been measured by complex impedance spectroscopy in the frequency range from 100 Hz to 5 MHz and temperature range 623-723 K with varying Li2O concentration. Experimentally observed data of ac conductivity is fitted with Jonscher’s power law, and conductivity parameters viz. crossover frequency (ωH), frequency exponent (s), dc conductivity (σdc), enthalpy of formation (Hf), and migration (Hm) of the Li+ ion have been estimated. Quantum Mechanical Electron tunnelling theory of conduction mechanism is found applicable in these glasses. At a given temperature, conductivity increases with Li2O content. The stretch parameter ‘β’ is observed to be temperature-dependent, and its value increases with a rise in Li2O content (β is 0.829 for x=10 and 0.928 for x=25 at 663 K), which signifies increased structural homogeneity and a smaller distribution of relaxation times. Relaxation time estimated from both electric modulus (τM\") and impedance (τZ\") decreases with an increase in Li2O content. With Li2O content, experimental values of dc (Edc) and ac (Ez) activation energies of the studied glass system follow similar behaviour as the total concentration of tetrahedral BO4 units (N4). An increase in the N4 fraction signifies a decrease in the activation energy for ionic conductivity.</div></div>","PeriodicalId":16461,"journal":{"name":"Journal of Non-crystalline Solids","volume":"672 ","pages":"Article 123854"},"PeriodicalIF":3.5,"publicationDate":"2026-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145468849","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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