Micron level sheet-like barium titanate crystal and its preparation method |
Title： |
| Micron level sheet-like barium titanate crystal and its preparation method |
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Application Number： |
200610164919 |
Application Date： |
2006/12/08 |
Announcement Date： |
2007/05/16 |
Pub. Date： |
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Publication Number： |
1962542 |
Announcement Number： |
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Grant Date： |
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Granted Pub. Date： |
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ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
C04B 35/468, C01G 23/00, C04B 35/626, H01L 41/187 |
Applicant(s)： |
Tsinghua University |
Inventor(s)： |
Zhou Heping, Liu Dan, Yan Yongke |
Key Words： |
Micron level, sheet-like, barium titanate crystal, preparation method |
Abstract： |
The invention discloses a preparing method of micrometer grade piece-shaped barium titanate crystal in the piezo-electric ceramic technological domain, which comprises the following steps: adopting salt fusing method to prepare BaBi4Ti4O15 as former; setting the molar rate of BaBi4Ti4O15 crystal, BaCO3 and KCl powder at 1: 2-5: 1-2; insulating under 900-1000 Deg C for 1-5h; washing through ultrasound; removing KCl and Bi2O3 in the sintered material; transmitting micrometer grade piece-shaped barium titanate crystal into BaTiO3 crystal with even grain size at 10*10*1 mum evenly. The crystal is fit for preparing Templated Grain Growth, which is fit for piezo-electric ceramic seed. |
Claim： |
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Priority： |
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PCT： |
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