Erosion barrier for thermal barrier coatings,申请号US20060443796-传众专利搜索

Erosion barrier for thermal barrier coatings

申请公布号：US2010247323(A1)

申请号：US20060443796

申请日期：2006.05.30

申请公布日期：2010.09.30

申请人：

UNITED TECHNOLOGIES CORPORATION

发明人：PERSKY JOSHUA;LITTON DAVID A.;LAMBERT DAVID L.

分类号：F03B3/12;B32B3/10;B32B15/04

主分类号：F03B3/12

摘要：A workpiece, such as a turbine engine component, comprises a substrate, a thermal barrier coating on the substrate, and a hard erosion barrier deposited over the thermal barrier coating. The erosion barrier preferably has a Vickers hardness in the range of from 1300 to 2750 kg/mm2. The erosion barrier may be formed from aluminum oxide, silicon carbide, silicon nitride, or molybdenum disilicide. The erosion barrier may be formed using either an electrophoretic deposition process or a slurry process.