Claims
- 1. A vitreous ceramic composition for forming an electroconductive metal plating layer on a ceramic article, the composition comprising:
- (i) about 100 parts by weight of at least one compound selected from the group consisting of AlN, BN and Si.sub.3 N.sub.4 powders,
- (ii) about 40 to about 800 parts by weight of SiO.sub.2 powder,
- (iii) about 3 to about 200 parts by weight of B.sub.2 O.sub.3 powder, and
- (iv) about 10 to about 500 parts by weight of at least one compound selected from the group consisting of CaO, and Al.sub.2 O.sub.3 ;
- said composition being applied to the surface of the ceramic article and heated at a temperature of about 500.degree. to about 1500.degree. C. to form a vitreous coating layer to form the vitreous coating layer upon which is applied a metal plating layer.
- 2. A process for forming an electroconductive metal plating layer on a ceramic article, the process consisting essentially of the steps of:
- applying to the surface of the ceramic article a vitreous ceramic composition comprising:
- (i) about 100 parts by weight of at least one compound selected from the group consisting of AlN, BN and Si.sub.3 N.sub.4 powders,
- (ii) about 40 to about 800 parts by weight of SiO.sub.2 powder,
- (iii) about 3 to about 200 parts by weight of B.sub.2 O.sub.3 powder, and
- (iv) about 10 to about 500 parts by weight of at lest one compound selected from the group consisting of CaO, and Al.sub.2 O.sub.3,
- heating the ceramic article at a temperature of about 500.degree. to about 1500.degree. C. to form a vitreous coating layer, and
- plating the vitreous coating layer with an electroconductive metal.
- 3. A process as defined in claim 2 wherein the ceramic article is one made of oxide ceramics.
- 4. A process as defined in claim 2 wherein the ceramic article is one made of nonoxide ceramics.
- 5. A process as defined in claim 2 wherein the ceramic article is at least one of tiles, portland cements, bricks, roof tiles, pottery and enamelled containers.
Priority Claims (1)
Number |
Date |
Country |
Kind |
59-279028 |
Dec 1984 |
JPX |
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Parent Case Info
This application is a continuation of application Ser. No. 813,194 filed 12/24/85, now abandoned.
US Referenced Citations (4)
Number |
Name |
Date |
Kind |
4004937 |
Masaki et al. |
Jan 1977 |
|
4097295 |
Chyung et al. |
Jun 1978 |
|
4379852 |
Watanabe et al. |
Apr 1983 |
|
4384909 |
Layden |
May 1983 |
|
Continuations (1)
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Number |
Date |
Country |
Parent |
813194 |
Dec 1985 |
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