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High purity, dense Cr 2 AlC compounds were synthesized via a powder metallurgical route, and their oxidation behavior was investigated at 1300°C in air for up to 336h. A thin external oxide layer formed, which consisted primarily of not Cr 2 O 3 but Al 2 O 3 . Since Al was consumed to produce the Al 2 O 3 , Al-depletion and Cr-enrichment occurred...
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