摘要
对醇 -水溶液加热法所制得的粉体的烧结行为进行了研究 .结果表明 :经过 4 50℃ ,5h煅烧 ,醇 -水溶液加热法所制得的粉体的硬团聚体比较小 ,因而烧结性能比较好 ;在 1 1 50℃ ,2h的条件下烧结 ,获得相对密度达 98.5%的烧结体 .与其它一些粉体制备方法相比 ,醇 -水溶液加热法所得粉体的烧结行为的重复性很好 ,不须经过预粗化处理就能达到较高的烧结密度 .这说明此方法所得粉体颗粒比较均匀、成型坯体缺陷少 ,有利于制备纳米Y -TZP材料 .
The sintering behavior of ZrO 2 powder obtained by heating of alcohol_aqueous salt solution was investigated. The results show that the powder calcined at 450 ℃ possesses a better sintering behavior than those calcined at lower or higher temperature because of its smaller aggregates. A relative density of 98.5% can be obtained when the powder is sintered at 1 150 ℃ for 2 h. It is found that the repeatability of the sintering results is very well and no precoarsening is needed compared with some kinds of powder obtained by other synthesizing methods.
出处
《硅酸盐学报》
EI
CAS
CSCD
北大核心
2000年第1期57-60,共4页
Journal of The Chinese Ceramic Society
关键词
醇
水溶液
加热法
纳氧化锆
粉体
烧结
Y-TZP
heating of alcohol_aqueous salt solutions
ziconia nanoparticles
sintering behavior
