Cordierite-type glass-ceramic with controlled coloration

Details Cordierite-type glass-ceramic with controlled coloration Cordierite-type glass-ceramic with controlled coloration

1988-08-11

1991-05-07

Robinson, Ellis P.

Stock material or miscellaneous articles

Surface property or characteristic of web, sheet or block

Surface modified glass

428210, 428212, 428220, 4283191, 428325, 428426, 428428, 428688, 428699, 428701, 428702, 501 4, 501 9, 501 69, C03B 3200

Patent

active

050136054

ABSTRACT:
There is disclosed a cordierite-type glass-ceramic article having a controlled gray coloration, and a method of producing such article by employing titania as the nucleating agent and firing in a reducing atmosphere, preferably a hydrogen-containing atmosphere, at 500.degree.-900.degree. C. for 2-8 hours.

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