Chapter 58. Development of Novel Oxide Materials for TBC's

  1. Hau-Tay Lin and
  2. Mrityunjay Singh
  1. Ulrich Bast1 and
  2. Eckart Schumann2

Published Online: 26 MAR 2008

DOI: 10.1002/9780470294758.ch58

26th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: B: Ceramic Engineering and Science Proceedings, Volume 23, Issue 4

26th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: B: Ceramic Engineering and Science Proceedings, Volume 23, Issue 4

How to Cite

Bast, U. and Schumann, E. (2002) Development of Novel Oxide Materials for TBC's, in 26th Annual Conference on Composites, Advanced Ceramics, Materials, and Structures: B: Ceramic Engineering and Science Proceedings, Volume 23, Issue 4 (eds H.-T. Lin and M. Singh), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9780470294758.ch58

Author Information

  1. 1

    Siemens AG 81730 Munich Germany

  2. 2

    Siemens AG 45466 Muelheim/Ruhr Germany

Publication History

  1. Published Online: 26 MAR 2008
  2. Published Print: 1 JAN 2002

ISBN Information

Print ISBN: 9780470375792

Online ISBN: 9780470294758

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Keywords:

  • novel oxide materials;
  • thermal barrier coatings;
  • gas turbine;
  • yttria-stabilized zirconia;
  • thermal expansion

Summary

The paper discusses the efforts and results of a joint project to develop alternative material systems for thermal barrier coatings that provide access to application temperatures beyond the present limitations. Based on the long-term stability and functional requirements that have to be met by coating materials for gas turbine applications, classes of oxide compounds were identified that have high potential to be used as an alternative to conventional yttria-stabilized zirconia.

Properties such as thermal expansion, heat conductivity, phase stability, sintering activity and thermocyclic behavior were examined and tailored to requirements by the selection of compound and microstructure.