Compositions: ceramic – Ceramic compositions – Devitrified glass-ceramics
Patent
1996-10-28
1999-06-08
Group, Karl
Compositions: ceramic
Ceramic compositions
Devitrified glass-ceramics
501 69, 501 73, C03C 1006
Patent
active
059104597
ABSTRACT:
The glass-ceramic material of the present invention has the hexagonal sheet structure of hexacelsian as its primary crystal phase and exhibits x-ray diffraction patterns indicative of hexacelsian, said glass-ceramic material has a stabilized thermal expansion and an overall weight percent composition comprising: 35-55% SiO.sub.2, 5-25% Al.sub.2 O.sub.3, 5-25% MgO, 5-35% BaO, 6-14% TiO.sub.2, 0-10% ZnO, and 0-8% ZrO.sub.2.
REFERENCES:
patent: 2691855 (1954-10-01), Armistead
patent: 2920971 (1960-01-01), Stookey
patent: 3272610 (1966-09-01), Eppler et al.
patent: 3656984 (1972-04-01), Hoffman
patent: 3837978 (1974-09-01), Busdiecker
patent: 3953220 (1976-04-01), Miller
patent: 4360567 (1982-11-01), Guillevic
patent: 4385127 (1983-05-01), Chyung
patent: 4971932 (1990-11-01), Alpha et al.
patent: 5476821 (1995-12-01), Beall et al.
Dov Bahat, "Compositional Study and Properties Characterization of Alkaline Earth Feldspar Glasses and Glass-Ceramics", published in vol. 4 (1969) of the Journal of Materials Science, pp. 855-860.
Jutta Topel-Schadt et al, "Transmission Electron Microscopy of SrAl.sub.2 Si.sub.2 O.sub.8 : Feldspar and Hexacelsian Polymorphs", published in vol. 13 (1978) of the Journal of Materials Science, pp. 1809-1815.
Yoshiki and Matsumoto, "High Temperature Modification of Barium Feldspar", published in vol. 34, No. 9 of the Journal of the American Ceramic Society, pp. 283-286 (1950).
Beall George H.
Holland Hans J.
Kohli Jeffrey T.
Corning Incorporated
Group Karl
Nwaneri Angela N.
Peterson Milton M.
LandOfFree
Glass-ceramic containing a stabilized hexacelsian crystal struct does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Glass-ceramic containing a stabilized hexacelsian crystal struct, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Glass-ceramic containing a stabilized hexacelsian crystal struct will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1683220