Effect of Al2O3/SiO2 ratio on yttrium aluminosilicate glass: Structure, thermal, mechanical, acid resistance properties

IF 3.5 3区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Journal of the American Ceramic Society Pub Date : 2025-03-27 DOI:10.1111/jace.20513

Xianzi Li, Yanhang Wang, Penghui Yang, Tao Han, Bin Han

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引用次数: 0

Abstract

Yttrium aluminosilicate glass with high alkali metal oxides content provides an excellent foundation for ion exchange to achieve high-strength glass preparation. Nevertheless, poor acid resistance limits its application under extreme acidic conditions. This study investigates the effects of Al₂O₃/SiO₂ ratios on the structure, acid resistance, thermal, and mechanical properties of glass. Experimental results reveal that Vickers hardness, elastic modulus, glass transition temperature, and expansion softening point temperature increase with the increase of Al₂O₃ content. Notably, there is a consistent relationship between the change in bridge oxygen ratio and the coefficient of thermal expansion. The glass network structure was optimized by adjusting the Al₂O₃/SiO₂ ratio, and the apparent quality of glass remained undamaged after being corroded by 6 mol/L hydrochloric acid for 6 h. In addition, the influence of network connectivity on the two-step ion exchange efficiency was explored and the bending strength was increased to 719 MPa.

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Al2O3/SiO2配比对钇铝硅酸盐玻璃的影响：结构、热学、力学、耐酸性能

高碱金属氧化物含量的钇铝硅酸盐玻璃为离子交换实现高强度玻璃的制备提供了良好的基础。然而，较差的耐酸性能限制了其在极端酸性条件下的应用。本文研究了Al2O3/SiO2配比对玻璃结构、耐酸性能、热学性能和力学性能的影响。实验结果表明，随着Al2O3含量的增加，合金的维氏硬度、弹性模量、玻璃化转变温度和膨胀软化点温度均升高。值得注意的是，桥氧比的变化与热膨胀系数之间存在一致的关系。通过调整Al2O3/SiO2的比例，优化了玻璃网络结构，经6 mol/L盐酸腐蚀6 h后，玻璃的表观质量保持不变，并探讨了网络连连度对两步离子交换效率的影响，使玻璃的抗弯强度提高到719 MPa。

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来源期刊

Journal of the American Ceramic Society 工程技术-材料科学：硅酸盐

CiteScore

7.50

自引率

7.70%

发文量

590

审稿时长

2.1 months

期刊介绍： The Journal of the American Ceramic Society contains records of original research that provide insight into or describe the science of ceramic and glass materials and composites based on ceramics and glasses. These papers include reports on discovery, characterization, and analysis of new inorganic, non-metallic materials; synthesis methods; phase relationships; processing approaches; microstructure-property relationships; and functionalities. Of great interest are works that support understanding founded on fundamental principles using experimental, theoretical, or computational methods or combinations of those approaches. All the published papers must be of enduring value and relevant to the science of ceramics and glasses or composites based on those materials. Papers on fundamental ceramic and glass science are welcome including those in the following areas: Enabling materials for grand challenges[...] Materials design, selection, synthesis and processing methods[...] Characterization of compositions, structures, defects, and properties along with new methods [...] Mechanisms, Theory, Modeling, and Simulation[...] JACerS accepts submissions of full-length Articles reporting original research, in-depth Feature Articles, Reviews of the state-of-the-art with compelling analysis, and Rapid Communications which are short papers with sufficient novelty or impact to justify swift publication.