Table of Contents
Textures and Microstructures
Volume 30 (1997), Issue 1-2, Pages 43-53
http://dx.doi.org/10.1155/TSM.30.43

Crystallographic Texture in Pulse Current Electroforming of Nickel

1Department of Manufacturing Engineering, The Hong Kong Polytechnic University, Hong Kong
2Department of Mechanical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China

Received 12 December 1996; Accepted 12 March 1997

Copyright © 1997 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Nickel deposits are rather seldom randomly oriented; they usually exhibit a column-like orientation with a definite [hkl] axis along the electric field direction in the electroforming process. However, up to present, most of the studies in electroforming nickels are still using a nickel sulfate bath which is now not commonly used in precise-electroforming or micro-electroforming. In this paper, an experimental investigation on the effect of pulse current on texture in micro-electroforming nickel has been carried out using a nickel sulphamate bath. It was reported that strong and weak [100] texture were formed at different pulse current conditions. These phenomena were considered to be related to the change of the amount of inhibiting chemical species at different conditions.