Method of preparing vitreous ceramic composition suitable for co

Details Method of preparing vitreous ceramic composition suitable for co Method of preparing vitreous ceramic composition suitable for co

1993-11-23

1994-07-19

Klemanski, Helene

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

501 10, 501 14, 501 21, 501 26, 501 67, 501 68, 501 70, 501 77, C03C 100, C03C 1400

Patent

active

053309391

ABSTRACT:
A vitreous ceramic composition for coating ceramic articles with a zinc and alumina base capable of separating rapidly up to 50% of crystalline phase consisting essentially of gahnite. The percentages by weight of the principal ingredients of the composition are the following. SiO.sub.2 30-50%; Al.sub.2 O.sub.3 10-25%; ZnO 8-25%; B.sub.2 O.sub.3 5-20%; TiO.sub.2 0-7%; other selected oxides can be added to change the fusability characteristics and heat expansion coefficients on the basis of specific applications of the composition.

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