This title appears in the Scientific Report :
2004
Please use the identifier:
http://dx.doi.org/10.1361/10599630420434 in citations.
Sintering and creep processes in plasma-sprayed thermal barrier coatings
Sintering and creep processes in plasma-sprayed thermal barrier coatings
During operation at elevated temperatures, sintering processes can significantly influence the mechanical properties of thermal barrier coatings (TBCs) by increasing Young's modulus and reducing strain tolerance. These changes of the mechanical response of TBCs were investigated using free-stan...
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Personal Name(s): | Ahrens, M. |
---|---|
Lampenscherf, R. / Vaßen, R. / Stöver, D. | |
Contributing Institute: |
Werkstoffsynthese und Herstellungsverfahren; IWV-1 |
Published in: | Journal of thermal spray technology, 13 (2004) S. 432 - 442 |
Imprint: |
Boston, Mass.
Springer
2004
|
Physical Description: |
432 - 442 |
DOI: |
10.1361/10599630420434 |
Document Type: |
Journal Article |
Research Program: |
Werkstoffsysteme für Kraftwerke |
Series Title: |
Journal of Thermal Spray Technology
13 |
Subject (ZB): | |
Publikationsportal JuSER |
During operation at elevated temperatures, sintering processes can significantly influence the mechanical properties of thermal barrier coatings (TBCs) by increasing Young's modulus and reducing strain tolerance. These changes of the mechanical response of TBCs were investigated using free-standing plasma-sprayed TBCs in a thermornechanical analysis (TMA) facility. The time-dependent change of Young's modulus was determined in situ in a flexure mode at different annealing temperatures. In addition, relaxation processes during loading and unloading were monitored. The time-dependent deformation behavior of the TBC sample can be described by a simple viscoelastic approach (Burgers model). Viscosity data are determined as a function of annealing temperature and time. |