Study on structure and properties of aluminosilicate glass induced by La2O3 based on experimental characterization and MD simulation

IF 3.2 3区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Journal of Non-crystalline Solids Pub Date : 2025-01-28 DOI:10.1016/j.jnoncrysol.2025.123422

Xianzi Li, Yanhang Wang, Penghui Yang, Haodong Tian, Tao Han, Bin Han, Kun He

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引用次数: 0

Abstract

Understanding the effect of La₂O₃ on the short- and long-range structure of aluminosilicate glass and how it affects the properties is crucial for effectively designing glass compositions. The detailed structural information for aluminosilicate glass with different contents of La₂O₃ were verified by experimental methods and molecular dynamics simulations. La³⁺ ion can capture bridging oxygen in glass network structure, reducing the degree of network connectivity, meanwhile its high field strength can improve the tightness of network structure. The coordination number of La³⁺ ions in aluminosilicate glass was calculated to be approximately 6.3. La₂O₃ can improve the mechanical properties and reduce the melting temperature of glass, meanwhile the influence of white precipitates caused by the clustering behavior of high content La³⁺ ions in aluminosilicate glass on the mechanical properties, thermal properties, and transmittance was studied. This study has guiding significance for the design of high-strength glass compositions.

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来源期刊

Journal of Non-crystalline Solids 工程技术-材料科学：硅酸盐

CiteScore

6.50

自引率

11.40%

发文量

576

审稿时长

35 days

期刊介绍： The Journal of Non-Crystalline Solids publishes review articles, research papers, and Letters to the Editor on amorphous and glassy materials, including inorganic, organic, polymeric, hybrid and metallic systems. Papers on partially glassy materials, such as glass-ceramics and glass-matrix composites, and papers involving the liquid state are also included in so far as the properties of the liquid are relevant for the formation of the solid. In all cases the papers must demonstrate both novelty and importance to the field, by way of significant advances in understanding or application of non-crystalline solids; in the case of Letters, a compelling case must also be made for expedited handling.