PLASMA SPRAY COATING ENHANCEMENT USING PLASMA FLAME HEAT TREATMENT

    公开(公告)号:US20200035463A1

    公开(公告)日:2020-01-30

    申请号:US16594561

    申请日:2019-10-07

    摘要: A method for forming a plasma resistant ceramic coating on an article includes placing the article into a chamber or spray cell of a plasma spraying system. A ceramic powder is then fed into the plasma spraying system at a powder feed rate, and a plasma resistant ceramic coating is deposited onto at least one surface of the article in a plasma spray process by the plasma spray system. The plasma spray system is then used to perform an in-situ plasma flame heat treatment of the plasma resistant ceramic coating to form crust on the plasma resistant ceramic coating.

    ION ASSISTED DEPOSITION TOP COAT OF RARE-EARTH OXIDE

    公开(公告)号:US20180030589A1

    公开(公告)日:2018-02-01

    申请号:US15717844

    申请日:2017-09-27

    摘要: A chamber component comprises a body, a first protective layer and a conformal second protective layer over the first protective layer. The first protective layer comprises a plasma resistant ceramic, has a thickness of greater than approximately 50 microns and comprises a plurality of cracks and pores. The conformal second protective layer comprises a plasma resistant rare earth oxide, has a thickness of less than 50 microns, has a porosity of less than 1%, and seals the plurality of cracks and pores of the first protective layer.