This title appears in the Scientific Report :
2006
Please use the identifier:
http://dx.doi.org/10.1016/j.scriptamat.2006.05.022 in citations.
In situ small-angle neutron scattering study of La2Zr2O7 and SrZrO3 ceramics for thermal barrier coatings
In situ small-angle neutron scattering study of La2Zr2O7 and SrZrO3 ceramics for thermal barrier coatings
Ex and in situ (<= 1300 degrees C) small-angle neutron scattering (SANS) experiments on annealed layers of air-plasma sprayed La2Zr2O7 and SrZrO3 for thermal barrier coatings are presented. The deposits exposed at 1200 degrees C up to 100 h showed a stable microstructure of large pores. Medium-si...
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Personal Name(s): | Strunz, P. |
---|---|
Schumacher, G. / Vaßen, R. / Wiedenmann, A. / Ryukhtin, V. | |
Contributing Institute: |
Werkstoffsynthese und Herstellungsverfahren; IWV-1 |
Published in: | Scripta materialia, 55 (2006) S. 545 - 548 |
Imprint: |
Amsterdam [u.a.]
Elsevier Science
2006
|
Physical Description: |
545 - 548 |
DOI: |
10.1016/j.scriptamat.2006.05.022 |
Document Type: |
Journal Article |
Research Program: |
Rationelle Energieumwandlung |
Series Title: |
Scripta Materialia
55 |
Subject (ZB): | |
Publikationsportal JuSER |
Ex and in situ (<= 1300 degrees C) small-angle neutron scattering (SANS) experiments on annealed layers of air-plasma sprayed La2Zr2O7 and SrZrO3 for thermal barrier coatings are presented. The deposits exposed at 1200 degrees C up to 100 h showed a stable microstructure of large pores. Medium-size (approximate to 10-50 nm) intragranular pores sinter during the exposure. The in situ SANS revealed that this process starts at 1000 degrees C. In contrast to La2Zr2O7, the creation of nanopores starting at 900 degrees C was detected in the SrZrO3 layer. These nanopores began to disappear at 1100 degrees C. (c) 2006 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved. |