Noble electroless Ni-P deposited hexagonal boron nitride for effective solid lubricant application

Maleque, Md. Abdul and K.A., Bello and Ahmad, Zuraida (2014) Noble electroless Ni-P deposited hexagonal boron nitride for effective solid lubricant application. In: Malaysia Technology Expo 2014, 20-22 Feb 2014, Kuala Lumpur, Malaysia. (Unpublished)

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Abstract

The hexagonal boron nitride (hBN) is a potential solid lubricating material; however, it has few limitations such as less surface activation, poor wettability, inhomogeneous mixture with substrate materials etc. This can be overcome via co-deposition of highly activated materials. Therefore, the present invention was aimed to co-deposit Ni-P alloy on hexagonal boron nitride (hBN) powder via electroless plating technique. The electroless nickel deposition was conducted in hypophosphite-reduced acid bath containing NiSO4 as the source of nickel. The characterization of co-deposited hBN was performed by means of scanning electron microscopy (SEM), energy dispersive spectrometry (EDS), field emission scanning electron microscopy (FESEM) and x-ray diffraction (XRD) analyzer. The morphologies of Ni-P co-deposited hBN suggested a good metallurgical bonding and uniform distribution of the powders with the existence of Ni3P phase. Elemental mapping also confirmed the deposition of Ni-P onto hBN substrate. Hence, it can be claimed that the co-deposition provides a highly active surface of hBN powder. Furthermore, this co-deposited hBN powder can be used as an efficient solid lubricant for tribological application where introducing liquid lubricant is very difficult. This co-deposited hBN is expected to show better wettability with the metallic matrix as well as excellent thermal stability. The novelty in this invention is that a noble electroless deposition technique was successfully applied toco-deposit Ni-P on hBN powder.

Item Type:	Conference or Workshop Item (Poster)
Additional Information:	6103/35824
Subjects:	T Technology > T Technology (General) > T11.95 Industrial directories T Technology > TN Mining engineering. Metallurgy > TN600 Metallurgy T Technology > TP Chemical technology > TP250 Industrial electrochemistry
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Manufacturing and Materials Engineering
Depositing User:	Prof Dr. Md Abdul Maleque
Date Deposited:	10 Mar 2014 10:37
Last Modified:	10 Mar 2014 10:37
URI:	http://irep.iium.edu.my/id/eprint/35824

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