Exuded transition metal films on glass-ceramic articles

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

1975-12-24

1977-06-21

Bashore, S. Leon

Glass manufacturing

Processes

Operating under inert or reducing conditions

65 30R, 65 33, 65 60D, 106 396, 106 398, 252477R, C03B 3200, C03C 1500, C03C 1700, C03C 322

Patent

active

040309037

ABSTRACT:
Suitable glass-ceramic base compositions, including some silicates, aluminosilicates, lithium aluminosilicates, and boroaluminates, are modified by the addition of suitable quantities of transition metal oxides prior to melting and forming into thermally-crystallizable 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, typically of spinel structure, therein. Such films demonstrate useful electrical, magnetic, catalytic and/or light-absorptive properties.

REFERENCES:
patent: 3231456 (1966-01-01), McMillan et al.
patent: 3557576 (1971-01-01), Baum
patent: 3639113 (1972-02-01), Aslanova et al.
patent: 3704110 (1972-11-01), Finn et al.
patent: 3790360 (1974-02-01), Kato et al.
patent: 3876407 (1975-04-01), Hirose et al.
patent: 3900306 (1975-08-01), Brueggemann
patent: 3914517 (1975-10-01), Pirooz

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