Crystallization behavior of electroless Co-Ni-B alloy plated in magnetic field in presence of cerium

来源期刊:中国有色金属学报(英文版)2006年第2期

论文作者:宣天鹏 章磊 黄芹华

文章页码:363 - 367

Key words:Co-Ni-B alloy; crystallization behavior; crystalline transformation; crystal structure; cerium; magnetic field

Abstract: The electrochemical property, chemical composition and crystal structure of electroless Co-Ni-B-Ce alloy plated in general state as well as in magnetic field were studied using potentiometer, plasma emission spectrometer, X-ray diffractometer, transmission electron microscope. The results show that the static potential and polarizability of electroless Co-Ni-B alloy are remarkably improved as the plating is carried out in magnetic field in the presence of a little amount of cerium in plating bath. Because of the action of magnetic field and rare earth element cerium, the boron content in alloy decreases, while cobalt and nickel contents increase. As a result, the amorphous Co-Ni-B alloy transforms to the microcrystalline Co-Ni-B-Ce alloy when the plating is in general state, and the Co-Ni-B alloy makes a crystalline transformation because of the action of magnetic field and rare earth element cerium.

基金信息:the National Natural Science Foundation of China

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