Research on Micro-Structure of Electroless Ni-B Coatings

Jian Xin Pan; Ru Jun Chen; Cui Lan Wu

doi:10.4028/www.scientific.net/AMR.602-604.1641

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 602-604Research on Micro-Structure of Electroless Ni-B...

Research on Micro-Structure of Electroless Ni-B Coatings

Abstract:

By means of X-ray diffractometry (XRD) and transmission electron microscope (TEM), the micro-structure of 5 different Ni–B alloy coatings prepared by electroless plating with Potassium borohydride content ranging from 0.2 to approximately 1.4g/L was studied The influence of the KBH4 content in the coatings on their micro-structure was also investigated. It has been found that Ni–B alloy coatings showed amorphous sytuctue with XRD while with TEM it showed a combination of amorphous and nanocrystalline structure. It was further revealed that the amorphous structure increased with increasing KBH4 content, which means that Ni-B alloy coating prepared with increasing KBH4 content undergoes a transition process as follows: nanocrystalline → crystalline → amorphous structure. Results indicated that the micro-structure of Ni-B alloy coatings should be studied by both methods of XRD and TEM.

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Periodical:

Advanced Materials Research (Volumes 602-604)

Pages:

1641-1645

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.602-604.1641

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Online since:

December 2012

Authors:

Jian Xin Pan, Ru Jun Chen, Cui Lan Wu

Keywords:

Electroless Plating (EP), Microstructure, Ni–B Alloy Coating, TEM, X-Ray Diffraction (XRD)

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