Chemistry of inorganic compounds – Oxygen or compound thereof – Metal containing
Patent
1973-04-11
1977-06-14
Carter, Herbert T.
Chemistry of inorganic compounds
Oxygen or compound thereof
Metal containing
423263, 423635, 423622, 264 65, 264 66, 264332, C01F 704
Patent
active
040297551
ABSTRACT:
A pressure sintering process for the fabrication of ultrafine grained cercs having improved strength and enhanced transparency comprising the cold compressing of a ceramic oxide powder having a cubic crystal structure, removing undesired gases, raising to a temperature at which full density of the compact can be obtained in isothermal increments of about 50.degree. under elevated pressures while maintaining the temperature at each incremental increase for a period of about 50-60 minutes, and recovering the product.
REFERENCES:
patent: 2474440 (1949-06-01), Smith et al.
patent: 3423188 (1969-01-01), Lutwitzi et al.
patent: 3766080 (1973-10-01), Swinehart et al.
Dutta Sunil K.
Gazza George E.
Carter Herbert T.
Edelberg Nathan
Gibson Robert P.
Roberto Muzio B.
The United States of America as represented by the Secretary of
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