材料科学
石墨
铝
冶金
腐蚀
氮化硅
氮化物
氮化硼
硅
复合材料
图层(电子)
作者
Paul Morrell,D.F. Bettridge,Michael Greaves,Mitch Dorfman,Luigi Russo,C.F. Britton,Keith E. Harrison
出处
期刊:Thermal spray
日期:1998-05-25
卷期号:83829: 1187-1192
被引量:4
标识
DOI:10.31399/asm.cp.itsc1998p1187
摘要
Abstract Abradable coatings are used in gas-turbine engines to optimize compressor performance by maintaining tight blade tip clearances. The most common such coatings are thermally sprayed Al-Si/polyester, Al-Si/graphite, and Ni/graphite. Al-Si/graphite coatings have performed well in terms of wear but are prone to corrosion, which can lead to spalling and a reduction in engine efficiency. In this paper, we chart the development of a powder-based Al-Si/BN abradable material designed to overcome in-service corrosion and analyze laboratory and engine testing results.
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