Superplastic nano Y-ZrO2 ceramic material and its preparation method
Title：
Superplastic nano Y-ZrO2 ceramic material and its preparation method
Application Number：
 200510012117
Application Date：
 2005/07/08
Announcement Date：
 2006/02/08
Pub. Date：
Publication Number：
 1730433
Announcement Number：
Grant Date：
Granted Pub. Date：
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 C04B 35/48, C04B 35/622
Applicant(s)：
 Tsinghua University
Inventor(s)：
 Zeng Zhaoqiang, Hu Xiaoqing
Key Words：
 Superplastic, nano Y-ZrO2, ceramic material, preparation method
Abstract：
 The invention relates to a superplastic nano Y-ZrO2 ceramic material and its preparing process by using ZrO2 and Y2O3 as raw material, wherein the formulation of the raw materials includes ZrO2 0.95-0.97, Y2O3 0.03-0.05, the ratio being the real mole number. The preparing process comprises ball grinding and mixing, drying, sieving, cold isostatically pressing, sintering in air atmosphere at 1400-1500 deg C, thermally insulating 4-10 hours, carrying out grain refining annealing treatment at 300-1000 deg C for 10-50 hours.
Claim：
Priority：
PCT：
LegalStatus：

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2008-4-17
  Selected patents owned by Tsinghua University filed in 2005 are loaded.
2008-3-31
  Selected patents owned by Tsinghua University filed in 2006 and 2007 are load.







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