Deuterium permeation of Al2O3/Cr2O3 composite film on 316L stainless steel
Deuterium permeation of Al2O3/Cr2O3 composite film on 316L stainless steel
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DOI：
10.1016/j.ijhydene.2014.12.058
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发表时间：
2015-02
影响因子：
7.2
通讯作者：
Di He;Yang Lei;Chaowu Zhang;Shuai Li;Xiaopeng Liu;Hua Zhang;Qinli Lv;Yunyi Wu;Lijun Jiang
中科院分区：
文献类型：
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作者：
Di He;Yang Lei;Chaowu Zhang;Shuai Li;Xiaopeng Liu;Hua Zhang;Qinli Lv;Yunyi Wu;Lijun Jiang
In this work, an Al2O3/Cr2O3composite film on 316L stainless steel was prepared by metal-organic chemical vapor deposition (MOCVD). The template effect of α-Cr2O3interlayer on α-Al2O3growth in the Al2O3layer is examined. It is found that α-Cr2O3is formed in the composite film, however no crystallized alumina is detected. The composite film consists of amorphous Al2O3and α-Cr2O3. Thus, the α-Cr2O3template does not stimulate the nucleation of α-Al2O3. Furthermore, the deuterium permeation behavior of the composite film is examined. It is found that the deuterium permeation suppression property of the Al2O3/Cr2O3composite film is not simply the addition of the deuterium permeation suppression properties of amorphous Al2O3and α-Cr2O3single films. The composite film exhibits much lower permeability than the single films of Al2O3and Cr2O3with similar thickness. The permeability reduction factors (PRF) were increased by the Al2O3/Cr2O3composite film to 230–544 at temperatures of 823–973 K, while the PRF values of the Al2O3film and the Cr2O3film are 95–247 and 24–117 at temperatures of 823–973 K. Therefore, the Al2O3/Cr2O3composite film can significantly enhance the deuterium permeation suppression property.
