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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

纳米Y-TZP凝胶注模成型的研究

孙静; 高濂; 郭景坤   

  1. 中国科学院上海硅酸盐研究所高性能陶瓷与超微结构国家重点实验室; 上海 200050
  • 收稿日期:1997-09-02 修回日期:1997-10-10 出版日期:1998-10-20 网络出版日期:1998-10-20

Gelcasting of Nano-sized Y-TZP

SUN Jing; GAO Lian; GUO Jing-Kun   

  1. State Key Lab of High Performance Ceramics Saperfine Microstructure; Shanghai institute of Ceramics; Chinese Academy of Sciences Shanghai 200050 China
  • Received:1997-09-02 Revised:1997-10-10 Published:1998-10-20 Online:1998-10-20

PDF (PC)

848

被引次数

60

摘要： 对纳米Y－TZP的浆料进行了凝胶注模成型．有机单体丙烯酸胺和交联剂N，N-亚甲基双丙烯酸胺的加入，不但起到使浆料凝胶的作用，还可以大大降低浆料粘度，改善浆料的流变性．有机单体、交联剂、引发剂均有其合适的用量范围．与干压法、等静压法相比，用凝胶注模法成型的素坯密度高、显微结构均匀、烧结体的断裂韧性也较等静压法高．

关键词: 凝胶注模成型, 纳米, Y－TZP

Abstract: The gelcasting process for shaping nano-sized Y-TZP was studied. The effect of organicmonomer and binder on the rheological properties of slurry was investigated. There existed the optimum amount of monomer, binder and initiator. Compared to dry pressing and isostatic pressingmethods, the specimens formed by gelcasting had higher density, more homogenous microstructureand higher fracture toughness.

Key words: gelcasting, nano-sized powder, Y-TZP

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