Journal
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
Volume 35, Issue 6, Pages 1699-1714Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jeurceramsoc.2014.12.029
Keywords
Oxidation resistance; Pressureless sintering; Tape casting; ZrB2; SiC
Categories
Funding
- European Project SMARTEES [262749]
- European Community
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SiC-ZrB2 ceramic laminates with different SiC:ZrB2 ratios were prepared by tape casting, binder burnout and pressureless sintering at 2200 degrees C in view of their application in thermal protection systems. Their oxidation behavior in air was investigated by TGA up to 1600 degrees C and by long term oxidation tests at 1500 and 1600 degrees C. Both microstructure and mechanical features of laminates were compared, before and after oxidation. The formation of a passive layer was always observed but the oxidation resistance worsened and the complexity of the oxide layer microstructure increased with the ZrB2 content. Composition also affected the residual strength and modulus after oxidation. (C) 2015 Elsevier Ltd. All rights reserved.
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