Electron Beam - Directed Vapor Deposition of Low Cost Thermal Barrier Coatings
Final rept. 1 Apr 1997-31 Dec 1999
VIRGINIA UNIV CHARLOTTESVILLE DEPT OF MATERIALS SCIENCE AND ENGINEERING
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The objective of this research is the development of improved performance, more affordable thermal barrier coatings via electron beam - directed vapor deposition EB-DVD, a high efficiency vapor deposition technology developed and patented by the principle investigator and graduate student in University of Virginias Intelligent Processing of Materials laboratory. During the research effort, experiments and modeling efforts were directed at development of coating structures with ultralow thermal conductivities. Yttria-stabilized zirconia layers with zig-zag morphologies and fine pore microstructures were produced with measured thermal conductivities of 0.8 WmK. These coatings are of significant interest to industry engaged in production of naval aircraft and marine turbine engine applications, and specimens have been produced for their evaluation.
- Coatings, Colorants and Finishes
- Jet and Gas Turbine Engines