Effects of Different Content of TiO2 on Crystallization Behavior and Properties of Li2O-ZnO-SiO2 Glass-Ceramics

Xiu Quan Zhao; Zheng Cao; Yu Teng Wu; Hong Jiang; Chang Jiu Li; Lin Yu; Yang Shen

doi:10.4028/www.scientific.net/AMR.1035.263

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1035Effects of Different Content of TiO2 on...

Effects of Different Content of TiO₂on Crystallization Behavior and Properties of Li₂O-ZnO-SiO₂Glass-Ceramics

Abstract:

Glass-ceramic materials of the Li₂O-ZnO-SiO₂ system, with various amounts of TiO₂added, have been prepared. The appropriate heat treatment temperatures were selected according to the information provided by the differential thermal analysis (DTA). X-ray diffraction (XRD) analysis demonstrated that in the LZS glass-ceramics system, the main phases are Li₂ZnSiO₄, cristobalite, tridymite and quartz. The scanning electron microscopy (SEM) revealed that crystals appear as lamellar and spherical particles in the glass-ceramics samples. In addition, the average coefficient of the thermal expansion (CTE) values first decreased, then increased and finally tended to flatten. When the content of TiO₂ increased to 6%, the CTE value decreased to 9.15×10^-6/K, reached the lowest value. When the content of TiO₂ increased to 10%, the CTE value reached highest value 13.90×10^-6/K.

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Proceedings of 2014 International Conference on Material Science and Engineering

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Periodical:

Advanced Materials Research (Volume 1035)

Pages:

263-267

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1035.263

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Online since:

October 2014

Authors:

Xiu Quan Zhao, Zheng Cao, Yu Teng Wu, Hong Jiang, Chang Jiu Li*, Lin Yu, Yang Shen

Keywords:

CTE, LZS Glass-Ceramics, TiO2

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