Patent ID: 8455103
Filing Date: 2013-06-04
Classification: C04B,C23C,F01D,F05D,Y02T,Y10T

Abstract:
1. A part comprising: a substrate of ceramic matrix composite material containing silicon; and an environmental barrier formed on the substrate and comprising: wherein: the bond sub-layer is formed between the substrate and the anticorrosion protection layer, the composition of the bond sub-layer varying from silicon to mullite between an inner face beside the substrate and an outer face, with the silicon content decreasing and the mullite content increasing, the bond sub-layer beginning, beside its inner face, in a layer of silicon formed on the substrate and having a thickness of no more than 50 μm, and the bond sub-layer terminating, beside its outer face, in a layer of mullite having a thickness of no more than 50 μm.