journal article·2013-09

Effect of La2O3 addition on crystallization and properties of Li2O–Al2O3–SiO2 glass-ceramics

Ping Lu, Yong Zheng, Jinshu Cheng, Dongyun Guo

Ceramics International· Volume 39· Issue 7
Publisher page

Abstract

Abstract La-doped Li2O–Al2O3–SiO2 (LAS) glass-ceramics were prepared by solid phase reaction. Their crystallization, morphologies and properties were investigated. The crystallization temperature of LAS glass-ceramics decreased due to the La2O3 addition. For the La-doped LAS glass, the β-quartz solid solution (s.s.) was initially formed, and then the β-quartz s.s. transformed to β-spodumene at higher temperature. The La2O3 addition played a role of network modifier in the LAS glass altering their network structure. With increasing the La2O3 content, the flexural strength decreased, and the thermal expansion coefficient increased.
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Research context

OpenAlex topics: Glass properties and applications · Advanced ceramic materials synthesis · Recycling and utilization of industrial and municipal waste in materials production

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