Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/31382
Title: A study of hardness and grain size in pulse current electroforming of nickel using different shaped waveforms
Authors: Wong, KP
Chan, KC 
Yue, TM 
Keywords: Grain size
Hardness
Pulse current electroforming
Shaped waveform
Issue Date: 2001
Publisher: Kluwer Academic Publ
Source: Journal of applied electrochemistry, 2001, v. 31, no. 1, p. 25-34 How to cite?
Journal: Journal of Applied Electrochemistry 
Abstract: This paper describes an experimental and theoretical study of the effects of different types of waveform on the grain size and the hardness of nickel electroforms in pulse current electroforming. The highest hardness value and the finest grain size were obtained using a ramp-down waveform with relaxation time. The experimental results show that compared with the conventional rectangular waveform and with relaxation time, the hardness value can be improved by about 28% when a ramp-down waveform, also with relaxation time, is used. These results are supported by theoretical predictions and the study of the surface morphology of the electroforms by scanning electron microscopy.
URI: http://hdl.handle.net/10397/31382
ISSN: 0021-891X
DOI: 10.1023/A:1004120823907
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