MgO-Al2O3-SiO2 Glass-Ceramic Prepared by Sol-Gel Method

Qiu Hua Yuan; Pei Xin Zhang; Li Gao; Hai Lin Peng; Xiang Zhong Ren; Dong Yun Zhang

doi:10.4028/www.scientific.net/AMR.92.131

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 92MgO-Al2O3-SiO2 Glass-Ceramic Prepared by Sol-Gel...

MgO-Al₂O₃-SiO₂ Glass-Ceramic Prepared by Sol-Gel Method

Abstract:

The crystallization behavior of MgO-Al2O3-SiO2 glass-ceramics by sol-gel technology was investigated by using x-ray diffraction (XRD), differential thermal analysis (DTA), Scanning electron microscopy (SEM). The results showed that: (1)α-cordierite phase was precipitated when the green body was calcined at 1050°C, and α-cordierite of high purity and stability could be formed at 1100°C; (2) Adding an appropriate amount of low melting point glass powder into the green body may provide liquid-phase environment during the sintering process, which will help enhance the tightness density of glass-ceramic, and thus improve its flexural strength.

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Periodical:

Advanced Materials Research (Volume 92)

Pages:

131-137

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.92.131

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Online since:

January 2010

Authors:

Qiu Hua Yuan, Pei Xin Zhang, Li Gao, Hai Lin Peng, Xiang Zhong Ren, Dong Yun Zhang

Keywords:

Glas Ceramics, MgO-Al₂O₃-SiO₂ System, Sol-Gel (SG)

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