Electrically conductive zirconia-based sintered body and process

Details Electrically conductive zirconia-based sintered body and process Electrically conductive zirconia-based sintered body and process

1989-12-11

1991-11-26

Dixon, Jr., William R.

Plastic and nonmetallic article shaping or treating: processes

Including step of generating heat by friction

264 65, 75235, 75244, 252520, 501 96, 501103, C04B 3548

Patent

active

050680722

ABSTRACT:
The present invention relates to a zirconia-based sintered body comprising TiN, TiO.sub.2 and ZrO.sub.2 and having electric conductivity and a process for the production thereof. The present invention provides a zirconia-based sintered body which has, at normal temperature, a mechanical strength of not less than 50 kg/mm.sup.2, a fracture toughness of not less than 4 MPam.sup.1/2, a Vickers hardness of not less than 1,000 kg/mm.sup.2 and a volume resistivity of not more than 1 .OMEGA.cm, and which is sinterable under normal pressure at low temperature, and a process for the production thereof.

REFERENCES:
patent: 3669695 (1972-06-01), Iler et al.
patent: 4626517 (1986-12-01), Watanabe et al.
patent: 4626518 (1986-12-01), Watanabe et al.
patent: 4753902 (1988-06-01), Ketcham
Journal of Material Science, 14, (1979), pp. 59-65, K. C. Radford et al., "Zirconia Electrolyte Cells".
Kino Zairyo (Functional Material), No. 10, (1986), pp. 31-37.

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