Single-frit glass ceramic

Details Single-frit glass ceramic Single-frit glass ceramic

1983-04-04

1984-06-19

McCarthy, Helen M.

Compositions: ceramic

Ceramic compositions

Devitrified glass-ceramics

106 35, 501 21, C03C 322

Patent

active

044553838

ABSTRACT:
There is disclosed a single-frit porcelain powder, suitable for use as a porcelain layer on metal-base dental restorations, and having a fired coefficient of thermal expansion within the range of from about 12 to about 14.times.10.sup.-6 in./in. .degree.C., wherein said single frit porcelain is of the following composition:

REFERENCES:
patent: 4101330 (1978-07-01), Burk et al.
Hoshikawa, Takeshi et al., "A New Leucite Glass-Ceramic Glaze: Mechanical Properties and Bonding to Gold-Alloy", Kagaku to Kogyo, Osaka (Science and Industry) 48(8), 1974, pp. 311-315.
Chem. Abstr. 94 (1981), Item 161261.
Hahn, C. et al., "Importance of the Glass Ceramic System Potassium Oxide-Aluminum Oxide-Silicon Dioxide in Dental Porcelain", Ber. Dtsch Keram. Ges. 1980, 57 (9-10), pp. 208-214 (Eng/Ger).

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