Compositions: ceramic – Ceramic compositions – Refractory
Patent
1983-09-01
1985-03-19
Lesmes, George F.
Compositions: ceramic
Ceramic compositions
Refractory
501102, 501103, 501152, 264 56, 264 67, C04B 3500
Patent
active
045060240
ABSTRACT:
The present invention is concerned with a ceramic formed body comprising a ceramic matrix and at least one phase of ceramic incorporation material dispersed therein, characterized by a dense, microcrack-free ceramic base matrix and compressive zones incorporated therein which consist of a mixture of the base matrix material with unstabilized zirconium dioxide particles which are predominantly monoclinic at ambient temperature.
The present invention is also concerned with a process for the production of such ceramic formed bodies and with the use thereof as constructional elements in the hot region of heat engines.
REFERENCES:
patent: 3247000 (1966-04-01), Taylor
patent: 3519447 (1970-07-01), Adams
patent: 3541193 (1970-11-01), Adams
patent: 3887387 (1975-06-01), Sturhahn
patent: 4218253 (1980-08-01), Dworak et al.
patent: 4298385 (1981-11-01), Claussen et al.
patent: 4316964 (1982-02-01), Lange
patent: 4322249 (1982-03-01), Claussen et al.
patent: 4419311 (1983-12-01), Claussen et al.
patent: 4421861 (1983-12-01), Claussen et al.
Claussen; N., "Fracture Toughness of Al.sub.2 O.sub.3 with an Unstabilized ZrO.sub.2 Dispersed Phase" J. Amer. Cer. Soc. Jan.-Feb., 1976, 59, pp. 49-51.
Claussen Nils
Petzow Gunter
Atkinson William M.
Lesmes George F.
Max-Planck-Institut zur Foerderung der Wissenschaften e.V.
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