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无机材料学报

无机材料学报 ›› 2000, Vol. 15 ›› Issue (3): 426-430.

• 研究论文 • 上一篇    下一篇

SiC粉体表面性质及其浆料流变性质研究

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:1999-04-27 修回日期:1999-08-24 出版日期:2000-06-20 网络出版日期:2000-06-20

Surface Properties of Silicon Carbide Powders and Rheological Properties of Their Slurries

SUN Jing, GAO Lian, GUO Jing-Kun   

  1. State Key Lab of High Performance Ceramics & Superfine Microstructure; Shanghai Institute of Ceramics; Chinese Academy of Sciences; Shanghai 200050 China
  • Received:1999-04-27 Revised:1999-08-24 Published:2000-06-20 Online:2000-06-20

PDF (PC)

1006

被引次数

41

摘要： 研究了两种不同来源的SiC粉体的表面性质及其浆料的流变性质．发现尽管两种粉体的粒径分布相近，形貌相似，但由于粉体表面性质的差别导致两种粉体形成的浆料有不同的流变性质．其中SiC－1粉体需添加分散剂PEI形成稳定浆料，其最高固体含量为40vol％，而SiC－2仅依靠调节浆料的pH至10左右即可以获得固体含量高达55vol％的稳定浆料．

关键词: SiC粉体, 表面性质, 流变性质

Abstract: The surface properties of two different kinds of silicon carbide were studied. Though they have similar distribution of particle size, but their slurries show different rheological properties.Adding PEI into slurry of SiC-1 as a dispersant to form stable slurry is needed and the maximum solid content of SiC-1 slurry can reach as high as 40vol%. Another powder named as SiC-2 can reach its high solid content as much as 55vol% only by adjusting pH values.

Key words: silicon carbide, surface properties, rheological properties

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