无机材料学报

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SiC晶须在Mullite浆料中的分散特性及流变学表征

凌律巍1; 吴文彪1; 江东亮2; 谭寿洪2; 黄政仁2   

  1. 1. 上海大学材料学院无机材料系, 上海 201800; 2. 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实验室, 上海 200050
  • 收稿日期:2000-12-07 修回日期:2001-02-07 出版日期:2001-11-20 网络出版日期:2001-11-20

Dispersion and Rheology of SiC Whisker in Mullite Slurry

LING Lu-Wei1; WU Wen-Biao1; JIANG Dong-Liang2; TAN Shou-Hong2; HUANG Zheng-Ren2   

  1. 1. Department of Inorganic material; College of Material; Shanghai University; Shanghai 201800; China; 2. State Key Lab of High Performance Ceramics and Superfine Microstructure, Shanghai Institure of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
  • Received:2000-12-07 Revised:2001-02-07 Published:2001-11-20 Online:2001-11-20

摘要: 研究了SiC 晶须在Mullite浆料中的分散行为.通过沉降实验和流变学测试讨论了pH值,分散剂对SiC 晶须分散性质的影响.结果发现,晶须的加入影响了浆料的流变性能.当PH=11,分散剂含量为5wt%时,可获得分散性较好的浆料.本分散工艺促进了晶须在Mullite浆料中的分散,提高了浆料的结构均匀性.

关键词: 莫来石, SiC晶须, 分散剂, 沉降高度

Abstract: The character of dispersion of SiC whiskers in mullite slurry was studied. The relationship between pH value or/and dispersant and dispersion of SiC whisker was discussed via
the sedimentation experiment and rheology test. The results show that the rheological properties of the mullite slurry are affected by the addition
of the whisker. Well dispersed slurry can be obtained with pH value and dispersant content as 11wt% and 5wt%, respectively. The dispersion techniques
in the study can improve the character of dispersion of SiC whisker in mullite slurry, increasing the structure uniformity of the slurry.

Key words: Mullite, SiC whisker, dispersant, sedimentational volumn

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