Preparation of LAS transparent glass-ceramics with varying Nb2O5/ZrO2 ratios using spodumene smelting slag as raw material

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

Journal of Non-crystalline Solids Pub Date : 2025-07-09 DOI:10.1016/j.jnoncrysol.2025.123693

Yuxin Gu , Fu Wang , Hanzheng Zhu , Guoliang Xu , Qilong Liao , Laibao Liu , Yong Dan , Peng Zhao , Yunxiu Liu

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Abstract

This study utilizes spodumene smelting slag as the primary raw material for the preparation of lithium aluminosilicate glass-ceramics (LAS), addressing issues related to sustainable waste management. In this study, up to 50 wt % of spodumene smelting slag was incorporated into the material, resulting in LAS glass-ceramics with outstanding crystallinity. The maximum transmittance at 550 nm exceeds 88.25 %, while the Vickers hardness reaches approximately 7.27 GPa. Additionally, the influence of Nb₂O₅ substitution for ZrO₂ on the crystallization behavior of LAS glass-ceramics was investigated. The results indicate that replacing ZrO₂ with Nb₂O₅ effectively suppresses grain growth and promotes grain refinement. The resulting fine-grained glass-ceramics exhibit enhanced transparency and Vickers hardness.

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以锂辉石冶炼渣为原料制备不同Nb2O5/ZrO2比的LAS透明微晶玻璃

本研究以锂辉石冶炼渣为主要原料制备硅酸铝锂玻璃陶瓷（LAS），解决了与可持续废物管理相关的问题。在本研究中，高达50%的锂辉石冶炼渣加入到材料中，得到了结晶度优异的LAS微晶玻璃。在550 nm处透光率超过88.25%，维氏硬度达到7.27 GPa左右。此外，还研究了Nb2O5取代ZrO2对LAS微晶玻璃结晶行为的影响。结果表明，用Nb2O5代替ZrO2能有效抑制晶粒长大，促进晶粒细化。由此产生的细晶玻璃陶瓷具有增强的透明度和维氏硬度。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.