High temperature coating, in two layers, on the ceramic substrate, its preparation and its applications .

摘要

The high temperature coating according to the invention comprises a layer (primer) and a barrier layer (of the finishing) emissivity glaze, compositions by weight: & br / barrier layer: & br / - silicon tetraboride (to more than 96% by weight of sib4): 0,1 to 10%; & br / - quartz glass: 90 to 99,9%; emissivity glaze layer: & br / - silicon tetraboride (to more than 96% by weight of sib4): 1,5 to 5,0%; & br / - high silica glass: 95 to 98,5%. (br / application to the protection of ceramic materials, in particular porous, erosion, and the chemical attack and / or mechanical.