Numerical Analysis on the Electrical Performance of Microstructured Environmentally-Friendly Electrical Contact Material Ag/SnO2

Abstract:

The paper analyzes the influence of structural parameters on the electrical performance of the microstructured environmentally-friendly electrical contact material Ag/SnO2 by using numerical simulation method.The numerical results show that the reisitivity of fiber-like electrical contact material Ag/SnO2 is significantly reduced compared with the resistivity of Ag/SnO2 adding reinforcing nanoparticles in the traditional way.So the fiber-like electrical contact material Ag/SnO2 exhibits higher conductivity in macro. On further analysis, we learn that the resistivity of fibrous electrical contact materials is related to weight percent of reinforced phase, and micro-structural parameter of length to diameter ratio. The resistivity increases as weight percent of reinforced phase increases,and decreases non-linearly with micro-structural parameter of length to diameter ratio increasing.This demonstrates that numerical simulation is one of effective methods for analysis of the electrical performance of the microstructured electrical contact material.

• Periodical: Applied Mechanics and Materials (Volume 419)
• Pages: 355-359
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.419.355
• Online since: October 2013
• Authors: Lei Wang, Wei Li Liu, Le Sheng Chen
• Keywords: Electrical Contact Material, Fiber-Like Arrangement, Length-Diameter Ratio, Reinforced Phase, Resistivity

References

[1] Deutsche Forschungs gemeinschaft. MAK-und BAT -Werte -Liste 2001[C], Wiley~VCH Verlag GmbH, Weinheim, (2001), p.112.

[2] Chen Jingchao, Sun Jialin, Zhang Kunhua, etc. Restrictive policy of european union in silver/cadmium oxide and development of other silver/metal oxide electrical contact materials[J]. Electrical Engineering Materials, Vol. 20-4(1999), p.1.

[3] Bundesanstalt fur Umwelt, Wald und Landschaft[J]. Selbstkontrolle in der Electronikbramche, Bern, July (1995), p.34.

[4] Liu Xiangmei, Zheng Ji, Li Songlin, etc. The preparation and capability of silver contact material of adding nano TiO2-SnO2[J]. Special alloys for electrical equipment, Vol. 20-4 (1999), p.1.

[5] Liu Jun. Development and application of silver metal oxide electrical contact materials[J]. Jiangsu Electrical Apparatus, Vol. 1( 2000), p.29-p.32.

[6] Du Yan, Zhang Kun-hua, Zhou Xiao-long, etc. Study on electrical properties of AgSnO2 Contact Material by Reaction Synthesis. Journal of Kunming University of Science and Technology(Natural Science Edition), Vol. 30, No. 4, (2005), p.28-p.31.

[7] Huang Xiwen. Discussion on the conductivity of electrical contact materials[J]. Special alloys for electrical equipment, Vol. 3( 1998), p.26.

[8] San Zhifang, Jiang Xinchen. Caculation of resistance of a truncate cone conductor [J]. Physics&Engnering. Vol. 21-2(2011).