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The behavior and effect of CuO in Ag/SnO<sub>2</sub> materials

Author:
Jun Wang  Wei Liu  Dongmei Li  Yaping Wang  


Journal:
Journal of Alloys and Compounds


Issue Date:
2014


Abstract(summary):

Highlights • The crystallized monoclinic CuO in CuO-doped SnO 2 nanoparticles had formed. • The crystallized monoclinic CuO distributed on the surface of SnO 2 nanoparticles. • Ag/SnO 2 materials adding CuO exhibited denser microstructure and better hardness. • Ag/SnO 2 materials adding CuO exhibited better arc erosion resistance. • The addition of CuO can obviously inhibited the spattering loss of molten droplet. Abstract In this paper, the behavior of CuO in CuO-doped SnO 2 nanoparticles was investigated; the effect of the addition of CuO on physical properties and arc erosion behavior of Ag/SnO 2 materials were examined. The CuO-doped SnO 2 nanoparticles were structurally characterized by X-ray diffraction (XRD) and High-resolution Transmission Electron Microscope (HR-TEM). The surface morphology of arc eroded Ag/SnO 2 materials was characterized by Scanning Electron Microscope (SEM). The results indicated that the crystallized monoclinic CuO in CuO-doped SnO 2 nanoparticles has formed and distributed on the surface of SnO 2 nanoparticles. It was found that Ag/SnO 2 materials adding CuO exhibited denser microstructure and better hardness as well as better arc erosion resistance compared with Ag/SnO 2 materials. The arc erosion results and theoretical analysis indicated that the addition of CuO in Ag/SnO 2 materials can obviously inhibited the spattering loss of molten droplets.


Page:
378-378


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