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Article including environmental barrier coating system, and method for making 发明申请

2023-06-18 3580 512K 0

专利信息

申请日期 2025-07-12 申请号 US10892682
公开(公告)号 US20060014029A1 公开(公告)日 2006-01-19
公开国别 US 申请人省市代码 全国
申请人 Jennifer Su Saak; Peter Joel Meschter; Krishan Lal Luthra; Reza Sarrafi Nour; Richard Didomizio
简介 Articles for use in a high temperature environment, and methods for protecting articles in such environments, are provided. The article comprises a substrate comprising silicon; a bondcoat comprising silicon, disposed over the substrate; an intermediate barrier disposed over the bondcoat, the barrier comprising at least one layer, wherein the at least one layer comprises a rare-earth silicate and is substantially free of mullite; and a topcoat disposed over the intermediate barrier, the topcoat comprising a rare-earth monosilicate. The method comprises providing a substrate, the substrate comprising silicon; disposing a bondcoat comprising silicon over the substrate; disposing an intermediate barrier over the bondcoat, the barrier comprising at least one layer, wherein the at least one layer comprises a rare-earth silicate and is substantially free of mullite; and disposing a topcoat over the intermediate barrier, the topcoat comprising a rare-earth monosilicate.


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