Colored glass-ceramics and method

Details Colored glass-ceramics and method Colored glass-ceramics and method

1994-07-18

1996-02-13

Group, Karl

Compositions: ceramic

Ceramic compositions

Devitrified glass-ceramics

501 7, 501 69, C03C 1014, C03C 1012

Patent

active

054911150

ABSTRACT:
A colored glass-ceramic and method of making it. The glass-ceramic has a primary crystal phase selected from the group consisting of beta-quartz solid solution and beta-spodumene solid solution, containing an amount of TiO.sub.2 effective as a nucleating agent up to 6% by weight, 700-900 ppm Fe.sub.2 O.sub.3 and 550-3000 ppm Co.sub.3 O.sub.4, the glass-ceramic having a beta-quartz solid solution as a primary crystal phase being transparent and having a color defined by the color coordinates x=0.2200-0.3100, y=0.0200-0.2400 falling within color box ABCDA in FIG. 1 in the drawings, and the glass-ceramic having a beta-spodumene solid solution as a primary crystal phase being opaque and having a color defined by the color coordinates x=0.2480-0.2880, y=0.2000-0.3150 falling within color box JKLMJ in FIG. 2 in the drawings. Reddish-purple and violet colors are obtained in transparent, beta-quartz glass-ceramics, while light to dark blue colors are obtained in opaque, beta-spodumene glass-ceramics.

REFERENCES:
patent: 2920971 (1960-01-01), Stookey
patent: 4940674 (1990-07-01), Beall et al.
patent: 5070045 (1991-12-01), Comte et al.
patent: 5179045 (1993-01-01), Aitken et al.
patent: 5256600 (1993-10-01), Pfitzenmaier

Affiliated with

Also associated with

Rating

Colored glass-ceramics and method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Colored glass-ceramics and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Colored glass-ceramics and method will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-240458