Colored machinable glass-ceramics

Details Colored machinable glass-ceramics Colored machinable glass-ceramics

2009-04-20

2011-11-01

Group, Karl (Department: 1731)

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

C501S059000, C501S003000, C501S073000, C501S077000

Reexamination Certificate

active

08048816

ABSTRACT:
The invention relates to opaque, colored glass-ceramic articles and to the production of opaque, colored glass-ceramic articles which can be readily formed to a desired shape using standard metal-working tools. The glass-ceramic material used to make such articles contains mica crystals as the predominant phase. The desired color is obtained through the addition of a colorant system to the precursor glass. In a particular embodiment the invention is directed to a black glass-ceramic article, the black color being obtained by the addition of iron oxides in levels as high as 20 wt %, which can yield a glass-ceramic having an iron-rice mica phase and/or a glass ceramic having an iron-rich mica phase plus an iron oxide phase.

REFERENCES:
patent: 2920971 (1960-01-01), Stookey et al.
patent: 3689293 (1972-09-01), Beall
patent: 3732087 (1973-05-01), Grossman
patent: 3756838 (1973-09-01), Beall
patent: 3839055 (1974-10-01), Grossman
patent: 4118237 (1978-10-01), Beall et al.
patent: 4467039 (1984-08-01), Beall et al.
patent: 4608348 (1986-08-01), Beall et al.
patent: 4991582 (1991-02-01), Byers et al.
patent: 5070044 (1991-12-01), Pinckney
patent: 5387558 (1995-02-01), Grossman
patent: 6645285 (2003-11-01), Brodkin et al.
patent: 2006/0010917 (2006-01-01), Fechner et al.
patent: 2006/0268528 (2006-11-01), Zadesky et al.
patent: 2007/0149379 (2007-06-01), Hsu et al.
patent: 50070413 (1975-06-01), None
patent: 380598 (1973-08-01), None
James Dwight Dana et al; “Dana's New Mineralogy”; J Wiley & Sons; 1997; p. 1444-1447.
S.W. Bailey et al; “Reviews in Mineralogy”, vol. 13; Mineralogical Society of America; p. 1-12 1984.
Wolfrom Holand et al; “Glass-Ceramic Technology” American Ceramic Society, Westerville OH; 2002 p. 229-258.
Wolfrom Holand et al; “Glass-Ceramic Technology” American Ceramic Society, Westerville OH; 2002 p. 1-12.
Wolfrom Holand et al; “Glass-Ceramic Technology” American Ceramic Society, Westerville OH; 2002 p. 236-241.

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