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Preparation of controlled nanosized Ag particles by the DC arc plasma evaporation

XIAOMIN ZHANG1, ZHENZHONG ZHANG1,* , FANGXIA ZHAO1, TAI QIU1, HAINING MENG1

Affiliation

  1. College of Materials Science and Engineering, Nanjing University of Technology, No. 5, Xin Mo Fan Road, Nanjing 210009, China

Abstract

In order to prepare high-performance silver conductive paste, nanosized Ag particles were prepared by DC arc plasma reactor. The significant factors for the production rate and the particle size were researched by orthogonal experiments (OA16 matrix) and range analysis. The composition, structure and morphology of particles were investigated by X Ray diffraction (XRD), transmission electron microscopy (TEM) and X ray fluorescence (XRF), respectively. Silver particle s were prepared by DC arc plasma, with a purity of up to 99.92 wt%, smooth surface and spherical form. The results show that the larger electric current can enhance the production rate and the average diameter. Both the particle size and the production rate increase as the PH2/PAr increases. With the increase of pressure, the production rate decrease s and the particle size rises first and then decreases..

Keywords

DC arc plasma evaporation, Ag nanoparticles, Preparation, Average diameter, Production rate.

Citation

XIAOMIN ZHANG, ZHENZHONG ZHANG, FANGXIA ZHAO, TAI QIU, HAINING MENG, Preparation of controlled nanosized Ag particles by the DC arc plasma evaporation, Optoelectronics and Advanced Materials - Rapid Communications, 8, 1-2, January-February 2014, pp.88-95 (2014).

Submitted at: Sept. 30, 2013

Accepted at: Jan. 22, 2014