THE OXIDATION PHENOMENA OF Ag-In ALLOYSAT DIFFERENT OXYGEN PARTIAL PRESSURE

J Chin Soc Corr Pro

2002, Vol. 22

Issue (2): 79-83 DOI:

Research Report

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THE OXIDATION PHENOMENA OF Ag-In ALLOYSAT DIFFERENT OXYGEN PARTIAL PRESSURE

Deren Wang;Yedong He;Shunhua Li;Wei Gao

北京科技大学腐蚀与防护中心

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Deren Wang; Yedong He; Shunhua Li; Wei Gao. THE OXIDATION PHENOMENA OF Ag-In ALLOYSAT DIFFERENT OXYGEN PARTIAL PRESSURE. J Chin Soc Corr Pro, 2002, 22(2): 79-83 .

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Abstract The oxidation behaviors of Ag-In alloys with di fferent indium content were studied at different oxygen partial pressure control l ed by an oxygen pump system.It is shown that both In2O3 particles and nano-s ize fibres can form on the surface of Ag-In alloys at different conditions:P O2=021×10-5 Pa and 550℃,at which internal oxidation may occur in the Ag-In alloys.When Ag-In alloy oxidized at PO20.21×105 Pa,I n2O3 particles and pure Ag nodules appeared on the surface of Ag-In alloys.W hile at low oxygen partial pressures,nano-size In2O3 fibres formed on the su rface of Ag-In alloys.Increasing the Indium content in the alloys or decreasing system oxygen partial pressure can promote the formation of In2O3 on the sur face of alloys.

Key words: oxidation Ag-In alloy low oxygen partial press ure

Received: 03 December 2001

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