专利名称：DIFFUSION BARRIER LAYERS
发明人：DEAKIN, Martin John,NICHOLLS, John Rayment
申请号：EP94906325.0
申请日：19940215
公开号：EP0683826A1
公开日：
19951129reaction diffusion
专利内容由知识产权出版社提供
摘要：A method of applying a continuous stable intermetallic diffusion barrier layer to a high temperature metallic article is described. In many instances, protective coatings are incompatible with the material of the substrate to which they are applied. Such incompatilibility is overcome in the invention through in situ formation of an intermediate stable diffusion barrier layer by sequential deposition and subsequent reaction of suitable metals to form a continuous intermetallic layer. A conventional overlay coating may then be applied to the intermetallic layer without risk to the underlying substrate. The invention also contemplates creation of unitary diffusion barriers from multi-layer deposits; deposition of plural diffusion barriers, and formation of complete protective systems comprising substrate, diffusion barrier(s) and overlay coating prior to heat treatment in situ.
申请人：THE SECRETARY of STATE for DEFENCE in HER BRITANNIC MAJESTY'S GOVERNMENT of the UNITED KINGDOM of GREAT BRITAIN and
地址：NORTHERN IRELAND, c/o Defence Research Agency Headquarters, Ively Road Pyestock, Farnborough, Hampshire GU14 0LS GB
国籍：GB
代理机构：Beckham, Robert William, et al 更多信息请下载全文后查看

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