J. Kishino et al.: "Mechanical properties of sinter-forged Al.sub.2 O.sub.3 -ZrO.sub.2 ceramics" Journal of Materials Science, vol. 31, Sep. 15, 1996, London, GB, pp.: 4991-4995. |
Patent Abstracts of Japan, vol. 17, No. 93 (C-1029), Feb. 24, 1993 and JP 04 285063 A (Toray Ind Inc), Oct. 9, 1992, abstract only. |
Database WP1, Week 40, Derwent Publications Ltd., London, GB; AN89-289260 (XP002061080 and JP 01 212 273 A (Hitachi Chem Co. Ltd), Aug. 25, 1989, abstract only. |
A. Leriche et al.: "Preparation and characterization of a dispersion toughened ceramic for thermomechanical uses (ZTA)" Jourdan of the European Ceramic Society, vol. 9, No. 3, 1992, Essex, GB, pp.: 169-176, XP002061078. |
P. Homerin et al.: "Mechanical properties of zirconia toughened alumina prepared by different methods" Jourdan de Physique, vol. 47, No. 2, Feb. 1986, Paris, FR, pp.: 717-721, XP002061079. |
Database WP1, Week 25, Derwent Publications Ltd., London, GB; AN91-183143, XP002061081 and JP 03 112 854 A (Osaka Cement Co. Ltd.), May 14, 1991, abstract only. |