THE BEHAVIOR OF ELECTRODEPOSITED NANOCRYSTALLINECo–NiALLOYS SUBJECTED TO MAGNETIC AND STRESS FIELDS

R. L. Hu, A. K. Soh (), L. Lu, P. L. Tam and K. Y. Li
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R. L. Hu: Department of Mechanical Engineering, The University of Hong Kong, Pokfulam, Hong Kong
A. K. Soh: Department of Mechanical Engineering, The University of Hong Kong, Pokfulam, Hong Kong
L. Lu: Department of Mechanical Engineering, National University of Singapore, 21 Lower Kent Ridge Road, Singapore 119077, Singapore
P. L. Tam: Department of Manufacturing Engineering and Engineering Management, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong
K. Y. Li: Department of Manufacturing Engineering and Engineering Management, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong

Surface Review and Letters (SRL), 2010, vol. 17, issue 01, 129-134

Abstract: Nanocrystalline materials commonly show properties superior to their bulk counterparts. Therefore, they are promising candidates used in the next generation of micro/nanodevices. In the present study, nanocrystallineCo–Nialloys were fabricated using the pulsed electrodeposition method. The microstructures and components were examined by scanning electron microscopy (SEM) coupled with energy dispersive X-ray spectrometer (EDX). Moreover, the magnetic properties of these alloys subjected to external stresses were studied using a magneto-mechanical coupling test system. The results obtained show that the nanocrystalline microstructure composed of ultrafine particles possessed good magnetic properties, and the saturation magnetization could reach approximately 2 T. In addition, the applied static and varying stresses did slightly affect the magnetic properties of the electrodeposits.

Keywords: Nanocrystalline; ferromagnetic; microstructure; electrodeposition (search for similar items in EconPapers)
Date: 2010
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DOI: 10.1142/S0218625X10014077

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