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Oxidation of the TiAlLan coating between 600 degrees C and 800 degrees C in air
- Issue Date
- Feb-2008
- Publisher
- WORLD SCIENTIFIC PUBL CO PTE LTD
- Keywords
- TiAlLaN coating; oxidation; lanthanum
- Citation
- SURFACE REVIEW AND LETTERS, v.15, no.1-2, pp.47 - 52
- Indexed
- SCIE
SCOPUS
- Journal Title
- SURFACE REVIEW AND LETTERS
- Volume
- 15
- Number
- 1-2
- Start Page
- 47
- End Page
- 52
- ISSN
- 0218-625X
- Abstract
- The oxidation of Ti19Al18La4N57 coating was studied at 600 degrees C, 700 degrees C, and 800 degrees C for up to 30 h in air. The coating consisted of fine Ti3Al3N2 polycrystals. The oxides formed were an amorphous mixture of Al2O3, TiO2, and La2O3. During oxidation, nitrogen diffused out from the coating. The addition of 4 at.% La to the TiAlN coating deteriorated the soundness of the oxide film formed.
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