| Study of the Structure of Oxide Interface in the Pt-Rh Alloy by AP-FIM |
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| 作者姓名： | 任大刚 |
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| 作者单位： | Institute of |
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| 摘 要： | This paper reports the study of structure of oxide interface in Pt-Rh alloy by atom probe field ion micro-scope (AP-FIM) which is well suited for the study of atom distribution with atomic scale at the surface and in-terface of alloy. AP depth profiles show that oxide interface exist in the Pt-Rh alloy which consists of PtO,RhO, PrO_2 and RhO_2 . The mechanism of oxidation of the alloy is considered as that first oxygen moleculesadsorbed on-to the surface of alloy then dissociate into oxygen atoms (0_2→2O). Consequently oxygen atomsdiffuse into interior through grain boundary forming oxide (M+O→MO). When the concentration of oxygencontinuously increases the dioxide (MO+O→-MO_2) forms.
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Study of the Structure of Oxide Interface in the Pt-Rh Alloy by AP-FIM |
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| Ren Dagang Institute of Metal Research,Academia Sinica,Shenyang . China.Study of the Structure of Oxide Interface in the Pt-Rh Alloy by AP-FIM[J].Rare Metals,1992(1). |
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| Authors: | Ren Dagang Institute of Metal Research Academia Sinica Shenyang China |
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| Affiliation: | Ren Dagang Institute of Metal Research,Academia Sinica,Shenyang 110015. China |
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| Abstract: | |
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| Keywords: | Oxide interface AP-FIM Pt-Rh alloy |
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