Patent ID: 6210791
Filing Date: 2001-04-03
Classification: C04B,C23C,F01D,F23M,F23R,Y02T,Y10T

Abstract:
A coated article suitable for use at elevated temperature which comprises:a substrate selected from the group consisting of metals and ceramics,a diffuse reflective barrier coating on the substrate, the diffuse reflective barrier coating comprising at least 40 percent by weight alumina based on the total solids in the coating, the alumina comprising from 10 to 90 percent by weight first alumina particles having a number average diameter of between 3.0 and 6.0 micrometers, and 10 to 90 percent by weight second alumina particles having a number average diameter of between 0.05 and 0.8 micrometers, anda low-emissivity coating on the diffuse reflective barrier coating, the low-emissivity coating comprising a metal oxide.