窑具材料中红柱石的烧结性能分析  

ANALYSIS FOR ANDALUSITE ON SINTERING PROPERTIES IN KILN MATERIAL

作　　者：贾江议[1] 赵胜利[1] 柴俊兰[2] 

机构地区：[1]河南科技大学材料科学与工程学院,洛阳471039 [2]中钢集团洛阳耐火材料研究院,洛阳471039

出　　处：《中国陶瓷》2008年第10期53-55,共3页China Ceramics

摘　　要：以红柱石为颗粒料,矾土、红柱石为细粉,粘土和纸浆废液为结合剂,在1380℃×4h烧成制度下,研究了红柱石的莫来石化作用及显微结构特征,分析了细粉中红柱石的加入量对窑具材料线膨胀率及常温耐压强度的影响。显微结构分析表明:在1380℃×4h烧成制度下红柱石的莫来石化程度好,颗粒红柱石的莫来石化针状晶体呈互相平行,并与红柱石颗粒边沿呈垂直排列;细粉红柱石的针状莫来石晶体交结呈网络结构,加强了材料的组织结构,10～15%的红柱石细粉对窑具材料性能有利。In the study, andalusite are used by attregate, bauxite and andalusite as powder ,sulphite waste liquor and clay as binder.At 1380℃ × 4h sintering systems,the transformation of andalusite to mullite and micro-structure is investigated,the influence of andalusite in powder to the linear expansion and cold crushing strength are analysed, micro analysis shows that the crystal of mullite have a good growth at 1380℃ ×4h, the crystal of mullite parallel to each other, and perpendicular to the pellet of mulllte .The crystal of mullite in substrate can strengthen the structure and play a important role in improving properties of the Kiln Material when andalusite addition is 10 - 15% in powder.

关 键 词：红柱石 加入量 烧成制度 莫来石 

分 类 号：TQ174.653[化学工程—陶瓷工业] P578.945[化学工程—硅酸盐工业]