SiC晶须在Mullite浆料中的分散特性及流变学表征  

Dispersion and Rheology of SiC Whisker in Mullite Slurry

作　　者：凌律巍[1] 吴文彪[1] 江东亮[2] 谭寿洪[2] 黄政仁[2] 

机构地区：[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

出　　处：《无机材料学报》2001年第6期1084-1088,共5页Journal of Inorganic Materials

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．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.

关 键 词：莫来石 SIC晶须 分散剂 沉降高度 分散特性 MULLITE 高温结构陶瓷浆料 流变学 碳化硅晶须 

分 类 号：TQ174.1[化学工程—陶瓷工业]