MECHANICAL BEHAVIOR OF NI-AL2O3 NANOCOMPOSITE COATINGS ELECTROPLATED IN THE PRECENCE OF ORGANIC COMPOUNDS

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MIRZAMOHAMMADI SADEGH; KHORSAND HAMID; ALIOFKHAZRAEI MAHMOOD

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Journal: Journal of Science and Technology of Composites Year:2017 | Volume:4 | Issue:3 Page(s): 245-254

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Title

MECHANICAL BEHAVIOR OF NI-AL2O3 NANOCOMPOSITE COATINGS ELECTROPLATED IN THE PRECENCE OF ORGANIC COMPOUNDS

Author(s)

MIRZAMOHAMMADI SADEGH | KHORSAND HAMID | ALIOFKHAZRAEI MAHMOOD | Issue Writer Certificate

Keywords

NICKEL ALUMINA NANOCOMPOSITESQ2

ORGANIC SUBSTANCESQ2

PULSE ELECTRODEPOSTIONQ2

MICROHARDNESSQ2

WEARQ2

Abstract

In this study, a novel method was used to increase alumina nanoparticles content in nickel base composite coatings plated by pulse current. Methanol, ethanol and formaldehyde were partially added to the Watt’s solution as ORGANIC SUBSTANCES and nickel alumina nanocomposite coatings were produced adopted by simultaneous ultrasonic and magnetic homogenizing. After electroplating, the effect of these organic solvents was investigated by comparison of cross sectional observation of the coatings by field emission scanning electron microscopy (FESEM) equipped with energy dispersive X-ray analysis (EDX). The hardness and WEAR behavior of electroplated nanocomposite coatings were evaluated by ball on disk test at room temperature and ambient air. Microstructures studies showed that the amount of incorporated nanoparticles in the coatings plated with the electrolyte without organic solvent is 2.1 wt. % and this amount increases with the addition of organic solvents. So that, the maximum amount of nanoparticles in this study (5.2 wt. %) is achieved by adding methanol. Surface hardness of the coatings plated with Watt’s solution was 301 Hv which increased to 485 Hv with adding methanol. WEAR tests also showed that the addition of methanol increased the WEAR resistance twice more than the electrolyte without organic solvent. The MICROHARDNESS investigation verifies this fact that increasing of reinforcement nanoparticles and coating’s MICROHARDNESS due to adding methanol provides the oxide layer’s mechanical strength and creates the highest WEAR resistance in the plated nanocomposites.

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APA: Copy

MIRZAMOHAMMADI, SADEGH, KHORSAND, HAMID, & ALIOFKHAZRAEI, MAHMOOD. (2017). MECHANICAL BEHAVIOR OF NI-AL₂O₃ NANOCOMPOSITE COATINGS ELECTROPLATED IN THE PRECENCE OF ORGANIC COMPOUNDS. JOURNAL OF SCIENCE AND TECHNOLOGY OF COMPOSITES (JSTC), 4(3 ), 245-254. SID. https://sid.ir/paper/251738/en

Vancouver: Copy

MIRZAMOHAMMADI SADEGH, KHORSAND HAMID, ALIOFKHAZRAEI MAHMOOD. MECHANICAL BEHAVIOR OF NI-AL₂O₃ NANOCOMPOSITE COATINGS ELECTROPLATED IN THE PRECENCE OF ORGANIC COMPOUNDS. JOURNAL OF SCIENCE AND TECHNOLOGY OF COMPOSITES (JSTC)[Internet]. 2017;4(3 ):245-254. Available from: https://sid.ir/paper/251738/en

IEEE: Copy

SADEGH MIRZAMOHAMMADI, HAMID KHORSAND, and MAHMOOD ALIOFKHAZRAEI, “MECHANICAL BEHAVIOR OF NI-AL₂O₃ NANOCOMPOSITE COATINGS ELECTROPLATED IN THE PRECENCE OF ORGANIC COMPOUNDS,” JOURNAL OF SCIENCE AND TECHNOLOGY OF COMPOSITES (JSTC), vol. 4, no. 3 , pp. 245–254, 2017, [Online]. Available: https://sid.ir/paper/251738/en

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