国产氧化锆粉体的表面改性处理  

Surface Modification of Domestic Zirconia Powder

作　　者：梁玥[1] 齐龙浩[1] 苗赫濯[1] 潘伟[1] 

机构地区：[1]清华大学 新型陶瓷与精细工艺国家重点实验室,北京100084

出　　处：《稀有金属材料与工程》2013年第S1期345-347,共3页Rare Metal Materials and Engineering

摘　　要：采用卧式砂磨机对国产氧化锆粉体进行表面改性处理。结果表明,虽然磨细处理可以有效提高粉体烧结活性,但必须有适当的造粒工艺相配合才能获得有应用价值的粉体。国产氧化锆粉体改性处理后,烧结试样抗弯强度降低的主要原因是存在大尺寸缺陷。分析了高温煅烧处理对国产氧化锆粉体性能的影响,初步认为提高粉体相变的稳定性有利于获得高性能氧化锆粉体。The surface modification of domestic zirconia powder using Horizontal sand mill was performed. Although the milling can improve the sintering property of the powder, the more suitable way of granulating is still need to get better powder. The sintered bodies of domestic zirconia powders after surface modification have low bending strength, because there are large defects in the sintered bodies. The effects of high temperature calcination on the domestic zirconia powder were also analyzed and it is considered that improving of the phase transformation stability of the powder is beneficial to get high-performance zirconia powder.

关 键 词：钇稳定氧化锆 喷雾造粒 烧结温度 致密度 

分 类 号：TB383.3[一般工业技术—材料科学与工程] TB306[理学—无机化学] O614.412[理学—化学]