TY - JOUR
T1 - Improvement of thermal stability of Yttria-doped tetragonal zirconia polycrystals by alloying with various oxides
AU - Sato, Tsugio
AU - Ohtaki, Shiro
AU - Endo, Tadashi
AU - Shimada, Masahiko
N1 - Funding Information:
The authors are indebted to the management of Toyo Soda Co. Ltd for supplying the starting powders used in the present study. The authors would also like to express their appreciation to Mr H. Matsuo for his contributions to the experiments. This work was partly supported by a Grant of Aid for Scientific Research of the Ministry of Education.
PY - 1986
Y1 - 1986
N2 - Yttria-doped tetragonal zirconia polycrystals doped with 0-12 mol% of CaO, MgO, CeO2 and TiO2 were sintered at 1400-1600°C for 3 h, and the mechanical properties and thermal stability of the sintered bodies were evaluated. The degree of the tetragonal-to-monoclinic phase transformation by annealing in humid air or hot water decreased with both increasing amounts of CeO2 or TiO2 and decreasing grain size of ZrO2. Alloying with TiO2 accelerated the grain growth and depressed densification, but alloying with less than 6 mol% of CeO2 caused no significant changes in grain size and mechanical properties.
AB - Yttria-doped tetragonal zirconia polycrystals doped with 0-12 mol% of CaO, MgO, CeO2 and TiO2 were sintered at 1400-1600°C for 3 h, and the mechanical properties and thermal stability of the sintered bodies were evaluated. The degree of the tetragonal-to-monoclinic phase transformation by annealing in humid air or hot water decreased with both increasing amounts of CeO2 or TiO2 and decreasing grain size of ZrO2. Alloying with TiO2 accelerated the grain growth and depressed densification, but alloying with less than 6 mol% of CeO2 caused no significant changes in grain size and mechanical properties.
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U2 - 10.1016/0267-3762(86)90048-2
DO - 10.1016/0267-3762(86)90048-2
M3 - Article
AN - SCOPUS:0001289713
SN - 0955-2219
VL - 2
SP - 167
EP - 177
JO - Journal of the European Ceramic Society
JF - Journal of the European Ceramic Society
IS - 3
ER -