OXIDATION OF THETiAlLaNCOATING BETWEEN 600°C AND 800°C IN AIR

Thuan Dinh Nguyen and D. B. Lee ()
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Thuan Dinh Nguyen: School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 440-746, South Korea
D. B. Lee: School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 440-746, South Korea

Surface Review and Letters (SRL), 2008, vol. 15, issue 01n02, 47-52

Abstract: The oxidation ofTi19Al18La4N57coating was studied at 600°C, 700°C, and 800°C for up to 30 h in air. The coating consisted of fineTi3Al3N2polycrystals. The oxides formed were an amorphous mixture ofAl2O3,TiO2, andLa2O3. During oxidation, nitrogen diffused out from the coating. The addition of 4 at.%Lato theTiAlNcoating deteriorated the soundness of the oxide film formed.

Keywords: TiAlLaNcoating; oxidation; lanthanum (search for similar items in EconPapers)
Date: 2008
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DOI: 10.1142/S0218625X08010932

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