Abstract
Al2O3-ZrO2 composites were prepared in two compositional ranges, 15 wt% ZrO2 and 29wt% ZrO2 with or without yttria or magnesia stabilizers. While 1.5 wt% Y2O3 produced tetragonal ZrO2 and fine grain microstructure, the 4.5 wt% Y2O3 developed cubic and tetragonal ZrO2 with similar microstructure. Al2O3 with 29.5wt% ZrO2-1.5wt% Y2O3 composition had the highest strength (3,300 kg/cm2). The bending strength remained more or less the same after the first thermal shock, and then it decreased gradually, but retained some strength after 20 cycles of quench. The load vs displacement curve became nonlinear after thermal shock possibly because of formation of microcracks which could be seen by microstructural studies.
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References
Bansal G K and Heuer A H 1975J. Am, Ceram. Soc. 58 235
Benedetti A, Fagherazzi G and Pinna F 1989J. Am. Ceram. Soc. 72 467
Buresh F E 1984 inAdvances in ceramics. Science and technology of zirconia II (eds) N Claussen, M Rühle and A H Heuer (Columbus, Ohio; Am. Ceram. Soc.)12 p 306
Green D J 1982J. Am. Ceram. Soc. 65 610
Heuer A H, Claussen N, Kriven W M and Rühle M 1982J. Am. Ceram. Soc. 65 642
Heuer A H, Lange F F, Swain M V and Evans A G 1986J. Am. Ceram. Soc. 69 i-iv
Hori S, Yoshimura M and Somiya S 1986J. Am. Ceram. Soc. 69 169
Kibbel B W and Heuer A H 1984 inAdvances in ceramics. Science and technology of zirconia II (eds) N Claussen, M Rühle and A H Heuer (Columbus, Ohio; Am. Ceram. Soc.)12 p 415
Kibbel B and Heuer A H 1986J. Am. Ceram. Soc. 69 231
Kosmac T, Wallace J S and Claussen N 1982J. Am. Ceram. Soc. 65 C66
Lange F F and Hirlinger M M 1984J. Am. Ceram. Soc. 67 164
Lange F F and Miller K T 1987J. Am. Ceram. Soc. 70 896
Lin J T and Lu Hy 1988Ceram. int. 14 251
Majumder R, Gilbert E and Brook R J 1986Br. Ceram. Trans. J. 85 156
Marshall D B 1986J. Am. Ceram. Soc. 69 173
Matsui M, Soma T and Oda I 1986J. Am. Ceram. Soc. 69 198
Nettleship I and Stevens R 1987Int. J. High Tech. Ceram. 3 1
Rühle M, Claussen N and Heuer A H 1986J. Am. Ceram. Soc. 69 195
Srinivasa Rao A and Cannon W R 1989Ceram. Intern. 15 179
Swain M V 1990J. Am. Ceram. Soc. 73 621
Wang J and Stevens R 1988J. Mater. Sci. 23 804
Wu Xin and Chen I W 1990J. Am. Ceram. Soc. 73 746
Yuan Q M, Tan J Q and Jin Z G 1986J. Am. Ceram. Soc. 69 265
Zoz E I, Karaulov A G, Rudyak I N, Gul’ko N V and Karyakina E L 1980Inorg. Mater. 16 728
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Mitra, B.L., Biswas, N.C. & Aggarwal, P.S. Thermomechanical properties and microstructure of aluinina-zirconia. Bull. Mater. Sci. 15, 131–141 (1992). https://doi.org/10.1007/BF02927438
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DOI: https://doi.org/10.1007/BF02927438