摘要
对橡胶等静压成型(Rubber isostatic pressing,RIP)制备纳米Y-TZP陶瓷作了初步研究.研究结果表明,通过RIP成型,可以获得相对密度较高、体积较大的ZrO2(3Y)素坯,并在较低温度下无压烧结得到纳米Y-TZP陶瓷.在1100℃下烧结2h所得的Y-TZP陶瓷的相对密度可达97％,晶粒仅为70nm左右.相对密度较高、平均孔径小是RIP成型素坯烧结温度低的主要原因.
A new forming method called RIP was applied to fabricate Y-TZP nano ceramics. With RIP, a high pressure of about 1GPa was attained; a green compact with a weight of about 16g and a relative density of about 56% was obtained. Y-TZP nano-ceramics having a grain size of about 70nm were obtained when sintered at 1100degreesC for 2h. The results show that the sintering ability of the green compact is so good that it can be sintered to 97% at a low temperature of 1100degreesC. The relative high density of the green compact and the small pore size are the main reasons for the excellent sintering ability.
出处
《无机材料学报》
SCIE
EI
CAS
CSCD
北大核心
2002年第6期1297-1300,共4页
Journal of Inorganic Materials
