Exuded transition metal spinel films on glass-ceramic articles

Details Exuded transition metal spinel films on glass-ceramic articles Exuded transition metal spinel films on glass-ceramic articles

1974-01-07

1976-06-08

Gwinnell, Harry J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

106 397, 106 398, 428426, 428538, B32B 904, B32B 1706

Patent

active

039625141

ABSTRACT:
Suitable glass-ceramic base compositions, including some siicates, aluminosilicates, lithium aluminosilicates, and boroaluminates, are modified by the addition of suitable quantities of transition metal oxides prior to melting and forming into thermallycrystallizable glass articles. Appropriate crystallization and post-crystallization heat treatments are thereafter employed to cause crystallization of the articles and the formation and growth of films thereon, which films are characterized by the presence of transition metal compounds of spinel structure therein. Such films demonstrate useful electrical, magnetic, catalytic and/or light-absorptive properties.

REFERENCES:
patent: 2920971 (1960-01-01), Stookey
patent: 2961352 (1960-11-01), Grattidge et al.
patent: 2996418 (1961-08-01), Bleil
patent: 3100158 (1963-08-01), Le Maire et al.
patent: 3148079 (1964-09-01), Banks et al.
patent: 3489577 (1970-01-01), Tashiro et al.
patent: 3497366 (1970-02-01), Simmons
patent: 3676097 (1972-07-01), Plumat et al.
patent: 3725091 (1973-04-01), Chyung et al.

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