Journal of Non-crystalline Solids最新文献_第4页

Humidity-enabled photoluminescence resetting of the femtosecond laser-written perovskite patterns on glass 玻璃上飞秒激光写入钙钛矿图案的湿致光重设

IF 3.5 3区材料科学

Journal of Non-crystalline Solids Pub Date : 2026-03-01 Epub Date: 2026-01-10 DOI: 10.1016/j.jnoncrysol.2026.123952

Zhiqiang Wang , Fengyu Wang , Chengbo Zhao , Kai Yang , Shenghua Zhou , Liang Chen , Jianrong Qiu , Dezhi Tan

{"title":"Humidity-enabled photoluminescence resetting of the femtosecond laser-written perovskite patterns on glass","authors":"Zhiqiang Wang , Fengyu Wang , Chengbo Zhao , Kai Yang , Shenghua Zhou , Liang Chen , Jianrong Qiu , Dezhi Tan","doi":"10.1016/j.jnoncrysol.2026.123952","DOIUrl":"10.1016/j.jnoncrysol.2026.123952","url":null,"abstract":"<div><div>Luminescent patterning of perovskites has propelled the advancement of integrated optoelectronic applications, such as micro-LED, image sensors and photodetectors. These patterns with certain photoluminescence (PL) emission were mostly prepared independently on loading substrate surfaces where controllable PL shift of surface perovskite patterns under environmental stimuli remains challenging. This restricts the relevant optoelectronic applications such as anticounterfeiting and humidity monitoring. In this work, perovskite patterns were directly fabricated on precursor glass via femtosecond laser writing, and PL modulation, e.g., from blue to green, of the luminescent perovskite patterns was demonstrated via humidity treatment. Therein, it was proposed that humidity can promote the redistribution of perovskite ions in the pattern profile and recrystallize in accordance with the nominal halide stoichiometry of the precursor glass and exhibit certain PL emission wavelength. Interestingly, PL shift of the patterns on glass with different halide species still demonstrated the similar tendency. Experimentally, optoelectronic applications such as display and information encryption/decryption were explored. This work expanded the adjustability of micropatterns by the combination of laser direct writing and humidity treatment, which would advance the optoelectronic applications.</div></div>","PeriodicalId":16461,"journal":{"name":"Journal of Non-crystalline Solids","volume":"676 ","pages":"Article 123952"},"PeriodicalIF":3.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145941155","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

Interpretable viscosity prediction of steelmaking slag integrating machine learning with SHAP explanation 结合机器学习和SHAP解释的炼钢渣可解释粘度预测

IF 3.5 3区材料科学

Journal of Non-crystalline Solids Pub Date : 2026-03-01 Epub Date: 2026-01-14 DOI: 10.1016/j.jnoncrysol.2026.123955

Guibin Jia, Ruyi Zhao, Wei Yan

{"title":"Interpretable viscosity prediction of steelmaking slag integrating machine learning with SHAP explanation","authors":"Guibin Jia, Ruyi Zhao, Wei Yan","doi":"10.1016/j.jnoncrysol.2026.123955","DOIUrl":"10.1016/j.jnoncrysol.2026.123955","url":null,"abstract":"<div><div>Accurate and online viscosity predication is crucial for real-time monitoring and regulating steelmaking slag to fulfill the metallurgical requirements like slag splashing and slag foaming, etc. for achievement of intelligent steelmaking. Current viscosity predication capabilities remain constrained by the absence of robust models capable of addressing the steelmaking slag's multicomponent and non-Newtonian nature, particularly within medium-to-low temperature regimes where conventional viscosity models for fully liquid Newtonian melts exhibit limited applicability. In the current study, the viscosity predication models for multicomponent steelmaking slag system CaO-SiO₂-Fe<sub>t</sub>O-MgO-Al₂O₃-MnO-P₂O₅ were developed based on six machine learning (ML) algorithms integrated with SHapley Additive exPlanations (SHAP) interpretation framework, trained on the public literature-derived datasets. A multi-criteria rating-ranking decision approach was implemented to evaluate the overall predication performance using diverse metrics. The prediction model based on the extreme gradient boosting (XGB) algorithm of six ML models was found to demonstrated superior prediction accuracy, attaining a determination coefficient (R²) of 0.949, root mean square error (RMSE) of 0.163, and mean absolute error (MAE) of 0.101 for viscosity predication. Comparative analysis against RE-modified viscosity prediction models (integration of traditional models and Einstein-Roscoe model) revealed statistically significant superior of XGBoost model. SHAP interpretability analysis quantified feature importance, identifying CaO content as the primary contributor and temperature as the second modulator of viscosity predictions following by SiO<sub>2</sub>. This study advances viscosity predication capabilities for both Newtonian and non-Newtonian steelmaking slag systems, enabling real-time monitoring and regulating slag to support intelligent steelmaking.</div></div>","PeriodicalId":16461,"journal":{"name":"Journal of Non-crystalline Solids","volume":"676 ","pages":"Article 123955"},"PeriodicalIF":3.5,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145980441","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 high-temperature dealkalization on the surface structural evolution and mechanical properties of float glass 高温脱碱化对浮法玻璃表面结构演变及力学性能的影响

IF 3.5 3区材料科学

Journal of Non-crystalline Solids Pub Date : 2026-02-15 Epub Date: 2026-01-03 DOI: 10.1016/j.jnoncrysol.2025.123939

Tianlin Chen , Shimin Liu , Zhiyong Zhang , Jiangwei Liang , Shiqing Xu

{"title":"Effect of high-temperature dealkalization on the surface structural evolution and mechanical properties of float glass","authors":"Tianlin Chen , Shimin Liu , Zhiyong Zhang , Jiangwei Liang , Shiqing Xu","doi":"10.1016/j.jnoncrysol.2025.123939","DOIUrl":"10.1016/j.jnoncrysol.2025.123939","url":null,"abstract":"<div><div>High-temperature dealkalization is an effective method to enhance the mechanical properties and chemical durability of float-glass surfaces; however, the structural evolution that governs mechanical strengthening remains insufficiently understood. In this study, molecular dynamics simulations were employed to investigate the relationship between surface structural evolution and hardness under varying dealkalization degrees. The results show that surface hardness increases markedly with increasing dealkalization, consistent with experimental observations. Structural analysis reveals pronounced modifications of the Si–O network, including a higher proportion of bridging oxygen, a reduction in Si–O–Si bond angles, enhanced network connectivity, and a shift toward smaller ring sizes. Although the leaching of alkali cations creates vacancies and reduces density, the reduction of free volume within the Si-rich network is identified as the dominant factor contributing to hardness enhancement. In addition, atomic-scale vacancies cannot be fully eliminated at sub-Tg temperatures, indicating that the structure retains regulatory potential. This study elucidates, at the atomic scale, how dealkalization-induced densification governs mechanical strengthening, offering insight for optimizing dealkalization processes and improving the surface properties of glass.</div></div>","PeriodicalId":16461,"journal":{"name":"Journal of Non-crystalline Solids","volume":"675 ","pages":"Article 123939"},"PeriodicalIF":3.5,"publicationDate":"2026-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145928138","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

Quantitative analysis of binary CaO-Al2O3 glasses structure integrating experiments and simulations 结合实验和模拟对二元CaO-Al2O3玻璃结构进行定量分析

IF 3.5 3区材料科学

Journal of Non-crystalline Solids Pub Date : 2026-02-15 Epub Date: 2026-01-03 DOI: 10.1016/j.jnoncrysol.2025.123932

Yufan Zhao , Jinglin You , Shixiang Wang , Jiawen Lu , Feiyan Xu , Longxing Zhang , Bilal Ghafoor , Aurélien Canizarès , Kai Tang , Liming Lu , Qingli Zhang , Songming Wan

{"title":"Quantitative analysis of binary CaO-Al2O3 glasses structure integrating experiments and simulations","authors":"Yufan Zhao , Jinglin You , Shixiang Wang , Jiawen Lu , Feiyan Xu , Longxing Zhang , Bilal Ghafoor , Aurélien Canizarès , Kai Tang , Liming Lu , Qingli Zhang , Songming Wan","doi":"10.1016/j.jnoncrysol.2025.123932","DOIUrl":"10.1016/j.jnoncrysol.2025.123932","url":null,"abstract":"<div><div>This study systematically investigates the local structure of binary (100-<em>x</em>)CaO-<em>x</em>Al<sub>2</sub>O<sub>3</sub> (<em>x</em> = 25, 31, 37, 43, 50 %mol) glasses through an integrated approach combining classical molecular dynamics (CMD) simulations, <sup>27</sup>Al magic-angle spinning nuclear magnetic resonance (<sup>27</sup>Al MAS NMR), and Raman spectroscopy. Both experimental characterization and CMD simulations reveal that, with the increasing Al<sub>2</sub>O<sub>3</sub> content, the glass network predominantly comprises [AlO<sub>4</sub>] tetrahedra, accompanied by minor but the increasing contributions from [AlO<sub>5</sub>] and [AlO<sub>6</sub>] species. CMD-derived angular distribution function analysis identifies clear peak separations between corner-sharing and edge-sharing species, closely matching the deconvolution of Raman spectra in mid-wavenumber range and correlating with the emergence of high-coordination Aluminum species equally observed by <sup>27</sup>Al MAS NMR. This multi-method agreement confirmed that the structure transition from primarily corner-sharing to the increased edge-sharing connectivity. Furthermore, Gaussian deconvolution of Raman spectra in high-wavenumber range, combined with a refined <em>Q</em><sub>4</sub> calculation model, enables precise quantitative analysis of <em>Q</em><sub>i</sub> species (where <em>i</em> = 0∼4, denotes the number of bridging oxygen in each [AlO<sub>4</sub>] tetrahedron) by effectively compensating the influence of Raman scattering cross-sections. These integrated findings offer crucial insights into the structure evolution and topological transformations in binary CaO-Al<sub>2</sub>O<sub>3</sub> glasses, laying a theoretical foundation for the rational design and optimization of network connectivity.</div></div>","PeriodicalId":16461,"journal":{"name":"Journal of Non-crystalline Solids","volume":"675 ","pages":"Article 123932"},"PeriodicalIF":3.5,"publicationDate":"2026-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145883782","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

High-power laser delivery in nuclear environment using radiation-hardened fibers via controlled chlorine and hydroxyl content 通过控制氯和羟基含量，利用辐射硬化纤维在核环境中传输高功率激光

IF 3.5 3区材料科学

Journal of Non-crystalline Solids Pub Date : 2026-02-15 Epub Date: 2026-01-06 DOI: 10.1016/j.jnoncrysol.2025.123940

Yichong Chen , Minghui Shen , Xin Li , Chongyun Shao , Fan Wang , Qi Chen , Lei Zhang , Meng Wang , Chunlei Yu , Weifang Zheng , Lili Hu

{"title":"High-power laser delivery in nuclear environment using radiation-hardened fibers via controlled chlorine and hydroxyl content","authors":"Yichong Chen , Minghui Shen , Xin Li , Chongyun Shao , Fan Wang , Qi Chen , Lei Zhang , Meng Wang , Chunlei Yu , Weifang Zheng , Lili Hu","doi":"10.1016/j.jnoncrysol.2025.123940","DOIUrl":"10.1016/j.jnoncrysol.2025.123940","url":null,"abstract":"<div><div>The metallic cladding of spent nuclear fuel rods in nuclear power plants can be safely and efficiently cut using fiber lasers. Therefore, it is of great importance to develop silica fibers capable of transmitting high-power laser in high-radiation environments. However, inherent hydroxyl (OH) and chlorine (Cl) impurities in silica fibers adversely affect their radiation resistance. To fabricate silica fibers with high radiation resistance, this study prepared a series of glass samples with varying Cl/OH content using the Vapor Axial Deposition (VAD) method. The effects of radiation on the optical properties of the samples with different impurity concentrations, along with the underlying mechanisms, were investigated using absorption spectroscopy, photoluminescence spectroscopy, electron paramagnetic resonance (EPR), and photothermal absorption microscopy. Passive delivery fibers with a core diameter of 100 μm were fabricated using the rod-in-tube method. The influence of OH and Cl impurities on the fiber attenuation, laser delivery performance, and temperature rise coefficient was studied. The results indicate that the radiation resistance of medium-OH, Cl-free fibers is far superior to that of low-OH, high-Cl fibers. This research provides a reference for applying high power laser technology in high-radiation scenarios.</div></div>","PeriodicalId":16461,"journal":{"name":"Journal of Non-crystalline Solids","volume":"675 ","pages":"Article 123940"},"PeriodicalIF":3.5,"publicationDate":"2026-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145928141","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

Phase separation and crystallization in photo-thermo-refractive glass from molecular dynamics simulations 基于分子动力学模拟的光-热折射玻璃的相分离和结晶

IF 3.5 3区材料科学

Journal of Non-crystalline Solids Pub Date : 2026-02-15 Epub Date: 2026-01-05 DOI: 10.1016/j.jnoncrysol.2025.123937

Yajiao Zhang , Jingping Yan , Boyuan Li , Feimei Wang , Jiawei Liu , Fangling Jiang , Dongbing He , Lu Deng , Lili Hu

{"title":"Phase separation and crystallization in photo-thermo-refractive glass from molecular dynamics simulations","authors":"Yajiao Zhang , Jingping Yan , Boyuan Li , Feimei Wang , Jiawei Liu , Fangling Jiang , Dongbing He , Lu Deng , Lili Hu","doi":"10.1016/j.jnoncrysol.2025.123937","DOIUrl":"10.1016/j.jnoncrysol.2025.123937","url":null,"abstract":"<div><div>Photo-thermo-refractive (PTR) glass is widely used in optics due to its controllable refractive index change, yet its formation process remains poorly understood. In this study, molecular dynamics (MD) simulations were employed to investigate the structural evolution of PTR glass during the melt-quench process. The results reveal that two diffusion mechanisms exist and are strongly correlated with melting temperatures: diffusion of individual fluorine ions dominates at lower temperatures, whereas the cluster-mediated mechanism dominates at higher temperatures. Besides, liquid–liquid phase separation (LLPS) modifies the local composition to promote NaF crystallization process, without forming preferential nucleation sites at phase boundaries. In addition, LLPS and crystallization increase voids within the glass, potentially inducing internal stress thus influencing the orientation and fraction of crystals. This study provides atomic-scale insights into the structural evolution of PTR glass, offering new understandings on structure–property relationships in fluorine–oxide materials.</div></div>","PeriodicalId":16461,"journal":{"name":"Journal of Non-crystalline Solids","volume":"675 ","pages":"Article 123937"},"PeriodicalIF":3.5,"publicationDate":"2026-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145928139","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

Bromine-mediated evolution and luminescence quenching of silver species in photo-thermo-refractive glasses 溴介导的光-热折射玻璃中银的演化和发光猝灭

IF 3.5 3区材料科学

Journal of Non-crystalline Solids Pub Date : 2026-02-15 Epub Date: 2026-01-06 DOI: 10.1016/j.jnoncrysol.2025.123941

Qiuping Ren , Dashuang Ding , Leilei Ma , Shaoqian Zhang , Yuqi Jin

{"title":"Bromine-mediated evolution and luminescence quenching of silver species in photo-thermo-refractive glasses","authors":"Qiuping Ren , Dashuang Ding , Leilei Ma , Shaoqian Zhang , Yuqi Jin","doi":"10.1016/j.jnoncrysol.2025.123941","DOIUrl":"10.1016/j.jnoncrysol.2025.123941","url":null,"abstract":"<div><div>Silver nanostructures formed in photo-thermo-refractive (PTR) glass hosts exhibit unique optical properties with promising applications, but questions remain about their evolution. Here, we investigate Ag species in PTR glasses with varying Br content after UV exposure and heat treatment using UV−Vis absorption, photoluminescence (PL) spectra, and PL decay curves. The results suggest that Br doping enhances the mobility of Ag species and stabilizes Ag molecular clusters (MCs) via Ag–Br coordination. Moreover, the transformation from green emitting Ag MCs to non-luminescent nanoparticles is governed by distinct thermal thresholds and is accelerated by Br incorporation. In Br-free samples, the red emitting Ag MCs remain thermally stable, whereas Br facilitates the formation of AgBr, suppressing the red emitting component via nonradiative recombination. Simulations based on Mie theory further demonstrate the influence of Ag core size and AgBr shell thickness on the surface plasmon resonance behavior, consistent with experiments.</div></div>","PeriodicalId":16461,"journal":{"name":"Journal of Non-crystalline Solids","volume":"675 ","pages":"Article 123941"},"PeriodicalIF":3.5,"publicationDate":"2026-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145928140","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

Densification-induced chemical reorganization and mechanical enhancement in amorphous Si₂BC₃N 非晶Si₂BC₃N致密化诱导的化学重组和机械强化

IF 3.5 3区材料科学

Journal of Non-crystalline Solids Pub Date : 2026-02-15 Epub Date: 2026-01-02 DOI: 10.1016/j.jnoncrysol.2025.123936

Murat Durandurdu

{"title":"Densification-induced chemical reorganization and mechanical enhancement in amorphous Si₂BC₃N","authors":"Murat Durandurdu","doi":"10.1016/j.jnoncrysol.2025.123936","DOIUrl":"10.1016/j.jnoncrysol.2025.123936","url":null,"abstract":"<div><div>The atomistic mechanisms that govern the mechanical performance of amorphous silicon–boron carbonitride (SiBCN) ceramics remain insufficiently understood, particularly regarding the role of density. Here, we employ ab initio molecular dynamics simulations to elucidate the structural evolution and mechanical response of low-density (LDA, 2.20 g/cm³) and high-density (HDA, 2.53 g/cm³) amorphous Si₂BC₃N prepared via melt–quench. The HDA phase exhibits markedly higher atomic packing and network connectivity, accompanied by a nontrivial chemical reorganization. Densification significantly enhances heteronuclear bonding—especially Si–C coordination—while suppressing C–C and Si–Si homopolar bonds. These changes yield substantial mechanical strengthening: the HDA phase exhibits a 48% increase in bulk modulus (130 GPa vs. 88 GPa), along with elevated Young’s (266 GPa) and shear (112 GPa) moduli. Our findings reveal a clear density–structure–property relationship in amorphous SiBCN, demonstrating that densification suppresses weak self-bonded motifs and promotes a robust, interconnected atomic network. This insight provides a pathway for designing high-performance amorphous SiBCN ceramics for extreme-environment applications.</div></div>","PeriodicalId":16461,"journal":{"name":"Journal of Non-crystalline Solids","volume":"675 ","pages":"Article 123936"},"PeriodicalIF":3.5,"publicationDate":"2026-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145883780","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

Microstructure study on viscous flow and crystallization behavior of ultra-high titanium slag induced by amphoteric aluminum ions 两性铝离子诱导超高钛渣粘性流动及结晶行为的微观结构研究

IF 3.5 3区材料科学

Journal of Non-crystalline Solids Pub Date : 2026-02-15 Epub Date: 2026-01-02 DOI: 10.1016/j.jnoncrysol.2025.123938

Bo Zhang , Rui Zhang , Ting-an Zhang , Zhihe Dou , Shuojia Song , Qin Wang

{"title":"Microstructure study on viscous flow and crystallization behavior of ultra-high titanium slag induced by amphoteric aluminum ions","authors":"Bo Zhang , Rui Zhang , Ting-an Zhang , Zhihe Dou , Shuojia Song , Qin Wang","doi":"10.1016/j.jnoncrysol.2025.123938","DOIUrl":"10.1016/j.jnoncrysol.2025.123938","url":null,"abstract":"<div><div>To ensure the smooth operation of electric furnace smelting for vanadium-titanium magnetite and enhance smelting efficiency. This study prepared water-quenched glassy slags with the composition 50TiO<sub>2</sub>-(25–0.67<em>x</em>)SiO<sub>2</sub>-<em>x</em>Al<sub>2</sub>O<sub>3</sub>–12MgO-(12.5–0.33<em>x</em>)CaO-0.5V<sub>2</sub>O<sub>5</sub> (<em>x</em> = 9, 12, 15, and 18 wt%) and investigated the effects of Al<sub>2</sub>O<sub>3</sub> content on viscous flow behavior and structural evolution through high-temperature viscosity measurements, hot-wire method, X-ray diffraction analysis and Raman spectroscopy. When the Al₂O₃ content is below 15%, alumina acts as a network modifier. The dissociated O<sup>2</sup>⁻ ions promote gradual depolymerization of silicate tetrahedra while combining with Ti<sup>4+</sup> to form increased [TiO<sub>4</sub>]-tetrahedra. Concurrently, Al<sup>3+</sup> predominantly forms [AlO<sub>6</sub>]-octahedra to maintain system electroneutrality, thereby increasing the viscous activation energy and promoting titanium-spinel phase precipitation. This elevates the crystallization temperature from 1452 °C to 1473 °C. At 18% Al<sub>2</sub>O<sub>3</sub>, accumulated O<sup>2</sup>⁻ ions drive further Si-O network depolymerization. Under these conditions, Ti<sup>4+</sup> and Al<sup>3+</sup> preferentially function as network formers, generating more [TiO<sub>4</sub>]- and [AlO<sub>4</sub>]-tetrahedra that facilitate the structural transition from titanosilicate-dominated frameworks to titanium-aluminate architectures. This transformation induces a sharp increase in viscous activation energy, drives massive formation of Ti-Mg-Al spinel phases, and elevates the viscosity and crystallization temperature.</div></div>","PeriodicalId":16461,"journal":{"name":"Journal of Non-crystalline Solids","volume":"675 ","pages":"Article 123938"},"PeriodicalIF":3.5,"publicationDate":"2026-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145883783","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

Investigating the effect of P2O5 content on the phase composition, microstructure, and thermal properties of lithium aluminosilicate glass-ceramics 研究了P2O5含量对铝硅酸锂微晶玻璃相组成、微观结构和热性能的影响

IF 3.5 3区材料科学

Journal of Non-crystalline Solids Pub Date : 2026-02-01 Epub Date: 2025-12-31 DOI: 10.1016/j.jnoncrysol.2025.123931

Fahriye Taşkıran , Bünyamin Öztürk , Süleyman Önder Varışlı , Sümeyra Güven-Gören , Ümit Engin Anıl , Fatih Çalışkan , Selçuk Bulut Yazan

{"title":"Investigating the effect of P2O5 content on the phase composition, microstructure, and thermal properties of lithium aluminosilicate glass-ceramics","authors":"Fahriye Taşkıran , Bünyamin Öztürk , Süleyman Önder Varışlı , Sümeyra Güven-Gören , Ümit Engin Anıl , Fatih Çalışkan , Selçuk Bulut Yazan","doi":"10.1016/j.jnoncrysol.2025.123931","DOIUrl":"10.1016/j.jnoncrysol.2025.123931","url":null,"abstract":"<div><div>Lithium Alumina Silicate (LAS) glass-ceramic compositions with varying P<sub>2</sub>O<sub>5</sub> contents have been prepared by melting and quenching on a metal mold. The effects of varying P<sub>2</sub>O<sub>5</sub> contents on the phase, structural, microstructural and thermal properties of a Lithium Aluminosilicate (LAS) glass-ceramic system were investigated. The heating microscopy and DSC analysis result showed that increasing the amount of P<sub>2</sub>O<sub>5</sub> caused a decrease in the sintering temperature and a significant change in the crystallization temperatures was observed. The sample with the lowest P<sub>2</sub>O<sub>5</sub> content, crystallized at 880 °C, exhibited the lowest thermal expansion value of -0.011 × 10⁻⁶/ °C. XRD analysis revealed that the main phase in all samples was virgilite (Li<sub>0.75</sub>Al<sub>0.75</sub>Si<sub>2.25</sub>O<sub>6</sub>). The absorption band intensities at 560 cm⁻¹ and 1025 cm⁻¹, corresponding to the in-plane bending and asymmetric vibration of the Si-O-Al bond associated with the precipitation of the virgilite phase during LAS glass crystallization, increase with rising P<sub>2</sub>O<sub>5</sub> content. The FESEM investigations revealed that spherical virgilite crystallites of different sizes developed in the glassy matrix. Also, FESEM investigations revealed that the amount of P<sub>2</sub>O<sub>5</sub> and temperature changes influenced the size of the virgilite crystallites, the amount of the virgilite phase, and the thermal properties of LAS glasses. Bulk density of samples increased with crystallization, depending on temperature and amorphous phase content.</div></div>","PeriodicalId":16461,"journal":{"name":"Journal of Non-crystalline Solids","volume":"674 ","pages":"Article 123931"},"PeriodicalIF":3.5,"publicationDate":"2026-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145880774","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