Method for preparing nanometer-grade spherical YAG powder |
Title： |
| Method for preparing nanometer-grade spherical YAG powder |
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Application Number： |
200710118421 |
Application Date： |
2007/07/05 |
Announcement Date： |
2008/01/30 |
Pub. Date： |
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Publication Number： |
101113011 |
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： |
C01F 17/00C01F 7/02 |
Applicant(s)： |
Tsinghua University |
Inventor(s)： |
Huang Yong, Guo Rui, Zeng Renjie, Wu Yin |
Key Words： |
preparing method, nanometer-grade, spherical, YAG powder |
Abstract： |
The invention discloses a method to produce nanometer grade spherical yttrium aluminum garnet powder which pertains to the preparation field of inorganic powder. The invention adopts micro-emulsion system of water in oil structure, which means to solubilize oil phase transparent solution that contains oil phase material, surfactant and cosurfactant and water phase liquid that contains reactant solution and precipitant solution according to the volume ratio 2-10:1 or weight ratio 1-5:1 to react and generate the precipitate of single particle spherical aluminum and yttrium uniform heterocaryon; the precipitate is extracted to be cleaned, filtrated, dried and calcined to get pure phase spherical YAG powder with excellent dispersion and high sintering activity. The method has simple process, low energy consumption and low cost; besides, all organic waste liquid can be recycled. Therefore, the invention has no environmental pollution and is suitable for industrial production. |
Claim： |
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Priority： |
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PCT： |
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