Chapter 86. Manufacturing of Plasma-Sprayed Graded Structures

  1. J. P. Singh
  1. M. I. Mendelson

Published Online: 26 MAR 2008

DOI: 10.1002/9780470294444.ch86

Proceedings of the 21st Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - B: Ceramic Engineering and Science Proceedings, Volume 18, Issue 4

Proceedings of the 21st Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - B: Ceramic Engineering and Science Proceedings, Volume 18, Issue 4

How to Cite

Mendelson, M. I. (1997) Manufacturing of Plasma-Sprayed Graded Structures, in Proceedings of the 21st Annual Conference on Composites, Advanced Ceramics, Materials, and Structures - B: Ceramic Engineering and Science Proceedings, Volume 18, Issue 4 (ed J. P. Singh), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470294444.ch86

Author Information

  1. Loyola Marymount University, Los Angeles, CA

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 1997

ISBN Information

Print ISBN: 9780470375532

Online ISBN: 9780470294444

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Keywords:

  • microstructure;
  • interlayers;
  • characterized;
  • reflectivity;
  • parabolic-graded interlayers

Summary

Graded NiCrAlY/ZrO2-Y2O3 interlayers have been designed and fabricated for thermal barrier coating structures on Inconel 718. Air plasma sprayed step-graded interlayers and low pressure plasma sprayed parabolic-graded interlayers were manufactured using multiple powder feeders. The coating microstructures were dependent upon the powder size and plasma spray processing conditions. The microstructure of the step-graded interlayers consisted of a coarse layered distribution of the metallic and ceramic phases, while the microstructure of the parabolic-graded interlayers consisted of a fine lamellar phase distribution.