Influence Of Ultrasonic Amplitude And Saccharin Content On The Properties Of Electrodeposited Nickel-Quarry Dust Composite Coating

Shafie, Masitah (2019) Influence Of Ultrasonic Amplitude And Saccharin Content On The Properties Of Electrodeposited Nickel-Quarry Dust Composite Coating. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

The research focused on the effects of various ultrasonic amplitude and saccharin content on the surface morphology, hardness, and wear resistance of electrodeposited nickel-quarry dust composite coatings on high speed steels (HSS) substrate. Quarry dust was prepared using a ball milling process and co-deposited on substrate using an electrodeposition process. The nickel modified Watt’s bath was prepared using various saccharin content of 5, 10, 15 and 20 g/L. The electrodeposition process was carried out under an ultrasonic agitation at various % amplitude of 20, 40, and 60%. The composite coatings was characterized using Scanning Electron Microscope (SEM) and X-Ray Diffraction (XRD) and X-Ray Fluorescence (XRF). Then, the influence of various ultrasonic amplitude and saccharin content on the composite coatings was investigated using hardness test and wear test. As the saccharin content increase, the hardness of the substrate will increase too. Therefore, from 20% to 40% ultrasonic amplitude shows an increasing trend but at 60% the hardness reduce a little bit. The saccharin content also improve the well resistance of the substrate. The ultrasonic effect to the wear resistance significant to the hardness. As the substrate was applied with 60%, the wear shows a worst track. Ultrasonic amplitude and saccharin content does influence the surface morphology of the substrate as it related to the particles distribution and crystallite size produce.

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