M. Yoshimura et al., SUPERPLASTICITY OF ZRO2 AND ZRO2 AL2O3 COMPOSITE CONSISTING OF NANO-SIZED GRAINS/, MATERIALS RESEARCH INNOVATIONS, 2(2), 1998, pp. 83-86
Y2O3-stabilized ZrO2 and Y2O3-stabilized ZrO2/10 mol%Al2O3 composite b
oth consisting of homogeneous nano-sized grains were successfully fabr
icated by a pulse electric current sintering through solution chemistr
y technique. The relative density was above 97% for both the obtained
materials, and the grain size was less than 90 nm and 40 nm for the Zr
O2 monolith and the ZrO2/Al2O3 composite, respectively. The materials
showed superplastic behavior in compression at temperature of 1200 deg
rees C.