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无机材料学报

无机材料学报

• 研究论文 • 上一篇    下一篇

橡胶等静压成型纳米ZrO2(3Y)粉素坯

李蔚1; 高濂1; 久米秀树2; 西川义人2; 宫本大树2   

  1. 1. 中国科学院上海硅酸盐研究所高性能陶瓷和超微结构国家重点实验室, 上海 200050; 日本大阪府立产业技术综合研究所; 日本大阪594-1157
  • 收稿日期:2001-10-16 修回日期:2001-12-17 出版日期:2002-11-20 网络出版日期:2002-11-20

Preparation of Nano ZrO2(3Y) Green Compact by RIP

LI Wei1; GAO Lian1; KUME Hideki2; NISHIKAWA Yoshito2; MIYAMOTO Hiroki2   

  1. 1. State Key Lab on High Performance Ceramics & Superfine Microstructure; Shanghai Institute of Ceramics; Chinese Academy of Sciences; Shanghai 200050; China; 2. Technology Research Institute of Osaka Prefecture; Osaka 594-1157 Japan
  • Received:2001-10-16 Revised:2001-12-17 Published:2002-11-20 Online:2002-11-20

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摘要： 对橡胶等静压成型(Rubber isostatic pressing,RIP)制备纳米Y-TZP陶瓷作了初步研究.研究结果表明,通过RIP成型,可以获得相对密度较高、体积较大的ZrO2(3Y)素坯,并在较低温度下无压烧结得到纳米Y-TZP陶瓷.在1100℃下烧结2h所得的Y-TZP陶瓷的相对密度可达97％,晶粒仅为70nm左右.相对密度较高、平均孔径小是RIP成型素坯烧结温度低的主要原因.

关键词: Y-TZP, 纳米, RIP

Abstract: A new forming method called RIP was applied to fabricate Y-TZP nano ceramics. With RIP, a high pressure of about 1GPa was attained; a green compact
with a weight of about 16g and a relative density of about 56% wasobtained. Y-TZP nano-ceramics having a grain size of about 70nm were
obtained when sintered at 1100℃ for 2h. The results show that the sintering ability of the green compact is so good that it can be sintered to 97% at a low
temperature of 1100℃. The relative high density of the green compact and the small pore size are the main reasons for the excellent
sintering ability.

Key words: Y-TZP, nanometer, RIP

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