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U.S. Department of Energy
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Thermal durability and abradability of plasma sprayed Al-Si-polyimide seal coatings

Conference ·
OSTI ID:160433
;  [1]
  1. Solar Turbines Inc., San Diego, CA (United States)

Plasma sprayed Al-Si-polyimide coatings are being evaluated for air-oil seals in industrial gas turbines applications. Plasma spray process parameters have been varied to produce coatings with different hardnesses and consequently different abradability. The effects of various time/temperature exposures on the microstructure and macrohardness of the Al-Si-polyimide coatings have been studied. Furthermore, abradability rig testing was also conducted on as-coated and thermally exposed Al-Si-polyimide coatings. Long term thermal durability was also investigated.

OSTI ID:
160433
Report Number(s):
CONF-940684--; ISBN 0-87170-509-5
Country of Publication:
United States
Language:
English