Patent ID: 9719176
Date: 2017-08-01
CPC Classifications: B22F,C04B,C22C,C23C,C25D,F01D,F05D,Y02T

Claim:
1. A coating comprising metal-containing spheres that are sintered or glued together and/or embedded in a matrix, wherein said coating has at least 60% void volume fraction and closed porosity, wherein said coating has a coating thickness from about 50 microns to about 500 microns, wherein said metal-containing spheres have an average diameter that is from about 5% to about 30% of said coating thickness, and wherein said coating has a thermal conductivity of less than 10 W/m·K at 25° C. and a volumetric heat capacity of less than 1000 kJ/m 3 ·K at 25° C.