| 钡钛醋酸盐凝胶制备BaTiO3粉体 |
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| 引用本文： | 夏长泰 施尔畏. 钡钛醋酸盐凝胶制备BaTiO3粉体[J]. 硅酸盐通报, 1996, 15(2): 33-40 |
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| 作者姓名： | 夏长泰 施尔畏 |
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| 作者单位： | 中国科学院上海硅酸盐研究所中国科学院无机功能材料开放实验室 |
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| 基金项目： | 国家自然科学基金重点项目 |
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| 摘 要： | 本文报道了用ｓｏｌ－ｇｅｌ法制备钡醋酸盐凝胶，并分别作高灼烧和水热处理制备ＢａＴｉＯ３粉体。通过对产物的表征，比较了这两种处理过程，进而对水热条件下陶瓷粉体的形成机理作了探讨。由于水热条件，凝胶在反应介质中溶解，进而结晶形成晶粒，因此所形成的ＢａＴｉＯ３晶粒线度小；线度分布范围窄。晶粒形貌完整，明显优于高温灼烧处理后得到的粉体。
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| 关 键 词： | 粉体 水热处理 陶瓷 钛酸钡 钡钛醋酸盐 凝胶 |
Preparation of Barium Titanate Fine Powders from Barium-Titanate Acetate Gel |
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| Xia Changtai Shi Erwei Zhong Weizhuo Guo Jingkun. Preparation of Barium Titanate Fine Powders from Barium-Titanate Acetate Gel[J]. Bulletin of the Chinese Ceramic Society, 1996, 15(2): 33-40 |
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| Authors: | Xia Changtai Shi Erwei Zhong Weizhuo Guo Jingkun |
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| Abstract: | Barium-titanate acetate gel was prepared by sol-gel process and Perovskite fine barium titanate powders were synthesized by heat-treatment at high temperature and hydrothermal treatment for the gel.In this paper,the differences between the heat-treatment at high temperature and hydrothermal treatment,and the formation mechanism of powders under hydrothermal conditions were investigated.Hydrothermal treatment led to more homogeneous,better-crystallized BaTiO 3 powders with finer particle size (<100nm) than that of powders obtained by calcination. |
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| Keywords: | BaTiO 3 powders sol-gel precursor calcination hydrothermal treatment |
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