Details

Autor(en) / Beteiligte

• Wu, Chunping
• Yuan, Meng
• Zhao, Chengwei
• Wu, Qiong
• Huang, Runzhang
• Xu, Guofu

Titel

Oxidation kinetics characteristics of Ag-5.08Sn-3.14Sb alloy powders in different oxidizing atmosphere

Ist Teil von

• Corrosion science, 2022-05, Vol.199, p.110167, Article 110167

Ort / Verlag

Amsterdam: Elsevier Ltd

Erscheinungsjahr

2022

Quelle

ScienceDirect

Beschreibungen/Notizen

• Oxidation of Ag-Sn alloy powders is important technology for Ag-SnO2 electrical contact materials. Here the influence of oxidant on the oxidation behavior of Ag-5.08Sn-3.14Sb alloy powders was discussed. It can be found that the binding energy of all elements after oxidation in air is different from in air + Ag2O. Oxidation in air, the powder surface becomes rough and appears peeling, elements Sn, Sb and O distribute on the surface, oxides form on the powder surface. But oxidation in air + Ag2O, the powder surface is smooth, all elements uniformly distribute on the silver matrix and internal oxidation is occurred. [Display omitted] •The influence of Ag2O addition on the oxidation mechanism is discussed.•The binding energies of elements are different after Ag2O addition.•The oxides’ morphology is different after Ag2O addition.•Oxidation in air, O diffuses in, Sn and Sb diffuse out, external oxidation occurred.•After Ag2O addition,O diffuses in, Sn and Sb not diffuse, internal oxidation occurred.