Thermal stability of nickel molybdenum electrodeposits

-, Suryanto and Ani, Mohd Hanafi (2012) Thermal stability of nickel molybdenum electrodeposits. Advanced Materials Research, 576. pp. 413-416. ISSN 1022-6680

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Abstract

Thermal stability of nickel molybdenum electrodeposits was investigated. This investigation is important to show that electrodeposits can be used at elevated temperature and to understand electrodeposit behaviour as a function of temperature. Crack-free electrodeposits with up to 17 at% molybdenum were produced by the square pulse electro-deposition technique from a solution containing nickel sulphamate. The experiment was performed using vacuum furnace. Microstructure of deposits was investigated using microscope SEM, while the phase of deposits was studied using x-ray diffraction. Chemical composition of deposits was observed using energy dispersive x-ray analyzer and hardness of deposits was measured using micro hardness tester. The result shows that nickel molybdenum electrodeposits stable up to 400 oC. For 550 oC, grain growth was observed to start but the hardness of electrodeposits has no significant changed. Hardness analysis shows that hardness of electrodeposits does follow Hall Petch relationship.

Item Type:	Article (Journal)
Additional Information:	6148/27473
Uncontrolled Keywords:	Thermal Stability, Electrodeposit, Nickel, Molybdenum
Subjects:	T Technology > TA Engineering (General). Civil engineering (General)
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Manufacturing and Materials Engineering
Depositing User:	Dr Mohd Hanafi Ani
Date Deposited:	17 Dec 2012 14:43
Last Modified:	18 Aug 2017 16:46
URI:	http://irep.iium.edu.my/id/eprint/27473

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