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Deuterium permeation of amorphous alumina coating on 316L prepared by MOCVD

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JOURNAL OF NUCLEAR MATERIALS
卷 420, 期 1-3, 页码 405-408

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ELSEVIER SCIENCE BV
DOI: 10.1016/j.jnucmat.2011.10.040

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The deuterium permeation behavior of the alumina coating on 316L stainless steel prepared by metal organic chemical vapor deposition (MOCVD) was investigated. The alumina coating was also characterized by X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD) and scanning electron microscope (SEM). It was found that the as-prepared coating consisted of amorphous alumina. This alumina coating had a dense, crack-free and homogeneous morphology. Although the alumina coating was amorphous, effective suppression of deuterium permeation was demonstrated. The deuterium permeability of the alumina coating was 51-60 times less than that of the 316L stainless steel and 153-335 times less than that of the referred low activation martensitic steels at 860-960 K. (C) 2011 Elsevier B.V. All rights reserved.

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