초록 ▼

A process for enhancing the adhesion of coatings applied to the surfaces of glass-ceramic articles. The surface area to be coated is roughened before the article is completely cerammed. When the article is subjected to elevated temperatures for the purpose of converting the green glass to a glass-ce

A process for enhancing the adhesion of coatings applied to the surfaces of glass-ceramic articles. The surface area to be coated is roughened before the article is completely cerammed. When the article is subjected to elevated temperatures for the purpose of converting the green glass to a glass-ceramic, flaws produced by the abrasion step are healed. The coating can be applied before or after the ceramming step.

대표청구항 ▼

In the method of providing a coating on a surface of a glass-ceramic article formed by ceramming a green glass article comprising the steps of roughening said surface, and thereafter applying a coating to said roughened surface, the improvement comprising: roughening said green glass article prior t

In the method of providing a coating on a surface of a glass-ceramic article formed by ceramming a green glass article comprising the steps of roughening said surface, and thereafter applying a coating to said roughened surface, the improvement comprising: roughening said green glass article prior to the time that ceramming is initiated, and thereafter heating said article to an elevated temperature which is sufficiently high to ceram said article and to substantially heal mechanical damage in said article caused by said roughening step.