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《Journal of Inorganic Materials》 2004-01
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Influence of Additive Oxides on Crystallization of Ba_2TiSi_2O_8 PolarGlass-Ceramics

LIU Peng, ZHU Man-Kang, DAI Wu-Kun, WANG Bo, DING Zhen-Ya (The Key Lab of Advanced Functional Materials of China Education Ministry, Beijing Polytecnic University, Beijing 100022, China)  
Polar glass-ceramic of Ba2TiSi2O8 was prepared by the technology of isothermal oriented crystallization, based on the composition of 1.2BaO-1.0TiO2-2.6SiO2, added with 0.2CaO and 0.1ZrO2 respectively, to investigate the crystallinity of the polar glass ceramic of Ba2TiSi2O8 with different additive oxide. The experiment results show that CaO and ZrO2 additives affect the crystallization of the main crystal phase. ZrO2 additive results in BaZrSiO3 phase in the glass ceramic especially. In addition, adding 0.2CaO is advantageous for the oriented crystallization of BTS, and adding ZrO2 is disadvantageous.
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