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Glasses and Multi-Component Sol-Gels for Use as High-Temperature Protective Coatings

Published online by Cambridge University Press:  28 February 2011

Lauri J. Devore  and
Nora R. Osborne
Lauri J. Devore
Affiliation:
EG&G Mound Applied Technologies, P.O. Box 3000, Miamisburg, OH 45343
Nora R. Osborne
Affiliation:
University of Dayton Research Institute, 300 College Park, Dayton, OH 45469–0172
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Abstract

Two multi-component sol-gel compositions were developed and compared to several commercially available high-temperature glasses. All were then used and characterized as protective coatings for intermetallic titanium aluminide.

The sol-gels were studied as thin film coatings and the commercial glasses were studied as enameled coatings. Attention was given to (1) the effect of the application temperature on the original microstructure of the metal, and (2) the role of interfacial conditions between the glass and metal in cyclic and isothermal thermal cycles between ambient temperature and 760°C (1400°F).

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 180: Symposium A – Better Ceramics Through Chemistry IV , 1990 , 473
Copyright
Copyright © Materials Research Society 1990

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References

REFERENCES

1. Barrett, C. A., Oxidation of Metals, Vol. 30, 1988.Google Scholar
2. Ashley, Carol S., Reed, Scott T., “Sol-Gel-Derived AR Coatings for Solar Receivers,” Sandia National Laboratories, 1984.Google Scholar
3. Dislich, Helmut, “Thin Films from the Sol-Gel Process,” Sol-Gel Technology for Thin Films, Fibers, Preforms, Electronics and Snecialty Shapes, Ed., Klein, Lisa C., Noyes Publications, 1988.Google Scholar