A substrate is coated by applying an essentially pure aluminum first layer to a surface of the substrate. At least a first portion of the first layer is oxidized so as to provide a protective coating of desired properties. The substrate may be a refractory metal-based investment casting core.
申请公布号
US7207373(B2)
申请公布日期
2007.04.24
申请号
US20040973132
申请日期
2004.10.26
申请人
UNITED TECHNOLOGIES CORPORATION
发明人
PARKOS, JR. JOSEPH J.;LOMASNEY GARY M.;PERSKY JOSHUA E.