Journal of East China Normal University(Natural Sc ›› 2013, Vol. 2013 ›› Issue (6): 127-132.

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Influence of pH value on the properties of the composite wires by chemical deposition

LUAN Hong-yan1, LI Xin1, WANG Rui-li1,2, PAN Hai-lin1,CHEN De-lu1, ZHAO Zhen-jie1   

  1. 1. Department of Physics, Engineering Research Center for Nanophotonics & Advanced Instrument, Ministry of Education, East China Normal University, Shanghai 200062, China;
    2. Laboratory of Physics, Shanghai Ocean University, Shanghai 201306, China
  • Received:2013-04-01 Revised:2013-07-01 Online:2013-11-25 Published:2014-01-13

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Abstract: Composite wires of 100 μm diameter CuBe coated with a layer of NiCoP were prepared by chemical plating, and dc current of 150 mA got through CuBe wires during the process. The influence of pH value on the composite wires was studied in terms of morphology, deposition speed, composition, magnetic property and the GMI effect. The results showed that the pH value influenced GMI effect and critical frequency by changing the roughness of materials, deposition speed, the coating composition and magnetic structure. The maximum GMI effect of 868% is obtained at the pH value of 8.4.

Key words: pH value, composite wire, chemical plating, GMI effect

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