Patent ID: 6797388
Filing Date: 2004-09-28
Classification: C03C,Y10T

Abstract:
A coating over a portion of a surface of a substrate, the coating, comprising:a first substantially crystalline metal oxide coating layer having a first surface and an opposite surface defined as a second surface of the first coating layer with crystal size within the first coating layer increasing in a direction from the first surface of the first coating layer toward the second surface of the first coating layer; a second substantially crystalline metal oxide coating layer having a first surface and an opposite surface defined as a second surface of the second coating layer with the first surface of the second layer in facing relationship to the second surface of the first layer and with crystal size within the second layer increasing in a direction from the first surface of the second layer toward the second surface of the second layer, and at least one breaker layer comprising a metal oxide having at least phosphorous between the second surface of the first layer and the first surface of the second, the breaker layer interrupting crystal structure of the coating.