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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/27890

    Title: Detection of a change in the oxidation state on aluminum surface using angular correlation of positron annihilation radiation
    Authors: Chuang, S. Y.;Cheng, J. H.;Tseng, P. K.;Chen, D. E.
    Contributors: 淡江大學物理學系
    Date: 1982-04
    Issue Date: 2013-07-09 15:23:34 (UTC+8)
    Publisher: Amsterdam: Elsevier BV * North-Holland
    Abstract: Annealed pure Al oxidized in air at various temperatures, 20, 430 and 480°C, was investigated by positron angular correlation experiments. It was found that the intensity of the low-momentum component (parabola portion) increased dramatically for the sample oxidized at 480°C as compared with those oxidized at 430 or 20°C. The results were explained as due to the interaction of a positron with anhydrous γ-Al2O3 which was formed at an oxidation temperature of ~ 480°C but not at 430°C or less. It was concluded that it is possible to use the positron method as a means of NDE to evaluate the types of oxide states formed on Al.
    Relation: Physics Letters. Section A: General, Atomic and Solid State Physics 88(9), pp.479-482
    DOI: 10.1016/0375-9601(82)90546-1
    Appears in Collections:[物理學系暨研究所] 期刊論文

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