Crystallization Kinetics of BiBO3 Crystal by In-Situ Crystallization

被引：0
|
作者：
Cheng Yin [1 ]
Xiao Hanning [1 ,2 ]
Guo Wenming [2 ]
机构：
[1] Changsha Univ Sci & Technol, Coll Mat Sci & Engn, Changsha 410076, Hunan, Peoples R China
[2] Hunan Univ, Coll Mat Sci & Engn, Changsha 410082, Hunan, Peoples R China
来源：
RARE METAL MATERIALS AND ENGINEERING | 2008年 / 37卷
关键词：
BiBO3; crystal; crystallization kinetics; in-situ crystallization;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Bi2O3-B2O3 glass containing 30 similar to 60 mol% Bi2O3 were prepared by the melting-quenching method. The crystallization kinetics of Bi2O3-B2O3 glasses were studied by DSC, atava and Ozawa-Chen methods. The results showed that needle BiBO3 crystal could be formed by re-heated process in the range of 50 mol%<= Bi2O3 <=,60 mol%. La2O3 and Sm2O3 restrained the separation of high-polymerized bismuth borate crystals and promoted to form BiBO3 crystal. After reheated, the main crystal of Yb2O3 doped bismuth borate glass appeared as the grain-like Bi6B10O24 crystal. This indicated that Yb2O3 was not proper for the separation of BiBO3 crystal. Transparent surface-crystallized rare-earth doped bismuth borate glasses were obtained by reheating the ceramics between 460 similar to 540 degrees C for 5 h.
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页码：107 / 110
页数：4
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