拟薄水铝石为粘结剂成型氧化铝陶瓷的研究  

ALUMINA CERAMIC WAS FORMED AFTER GELLING AND SOLIDIFY USING BOEHMITE

作　　者：于长凤[1] 朱小平[1] 戴静[1] 

机构地区：[1]景德镇陶瓷学院,景德镇333000

出　　处：《中国陶瓷》2008年第1期35-37,共3页China Ceramics

摘　　要：探讨了利用拟薄水铝石作为粘结剂,胶凝固化后成型氧化铝陶瓷。选用柠檬酸铵为分散剂,取9wt%的拟薄水铝石,可获得固相含量为50%、粘度为960mPa·s的浆料。以硝酸为固化剂在一定的温度及时间内胶凝固化并干燥,可以得到抗弯强度为3.916MPa的生坯。并研究了拟薄水铝石对浆料粘度、生坯抗弯强度以及烧结体密度的影响。A novel colloidal forming method was investigated in this paper. Alumina ceramic was formed after gelling and solidify using boehmite as a binder. The pasty stock was obtained using TAC as a dispersant with solid content 50%,boehmite 9wt%,viscosity 960mPa. s. The green body＇ s bending strength was 3.916MPa after jelling and drying under special temperature and time using nitric acid as a curing agent. The influences of boehmite on slurry viscosity, bending strength and sintered body density were also studied.

关 键 词：拟薄水铝石 粘结剂 氧化铝 

分 类 号：TQ133.1[化学工程—无机化工] TQ174.758