期刊
APPLIED SURFACE SCIENCE
卷 263, 期 -, 页码 149-156出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2012.09.020
关键词
Electroless Ni-P; Halloysite nanotubes; Composite coating; Corrosion; Microhardness; Friction
类别
资金
- CSIR, Govt. of India [9/908(0003)2K12-EMR-I]
Halloysite nanotubes (HNTs) of the dimension 50nm x 1-3 mu m (diameter x length) are utililized to fabricate the alloy composite by employing electroless/autocatalytic deposition technique. Electroless Ni-P-HNT binary alloy composite coatings are prepared successfully on low carbon steel. These nanotubes were made to get inserted/incorporated into nickel matrix and corresponding composites are examined for their electrochemical, mechanical and tribological performances and compared with that of plain Ni-P. The coatings were characterized using scanning electron microscopy (SEM) and Energy dispersive X-ray analysis (EDX) techniques to analyze surface nature and composition correspondingly. Small amount of incorporated HNTs made Ni-P deposits appreciable enhancement and betterment in corrosion resistance, hardness and friction resistance. This drastic improvement in the properties reflects the effect of addition of HNTs into Ni-P matrix leading to the development of high performance Ni-P-HNT composite coatings. (C) 2012 Elsevier B. V. All rights reserved.
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