Please use this identifier to cite or link to this item: https://doi.org/10.1016/S0921-5093(00)01434-9
Title: Electroless polyol synthesis and properties of nanostructured NixCo100-x films
Authors: Chow, G.M. 
Zhang, J.
Li, Y.Y.
Ding, J. 
Goh, W.C. 
Keywords: Electroless deposition
Magnetic
Metal film
Nanostructures
Powder
Issue Date: 31-May-2001
Citation: Chow, G.M., Zhang, J., Li, Y.Y., Ding, J., Goh, W.C. (2001-05-31). Electroless polyol synthesis and properties of nanostructured NixCo100-x films. Materials Science and Engineering A 304-306 (1-2) : 194-199. ScholarBank@NUS Repository. https://doi.org/10.1016/S0921-5093(00)01434-9
Abstract: A non-aqueous, electroless, polyol process was used to deposit nanostructured NixCo100-x films on Cu substrates by reducing nickel acetate and cobalt acetate in refluxing ethylene glycol at 194°C for 1 h. As-deposited films were characterized using X-ray diffraction (XRD). scanning electron microscopy (SEM), vibrating sample magnetometry (VSM), microhardness and microscratch tests. The films had a (1 1 1) texture and the average crystallite size increased with x from 15 to 64 nm. The films showed in-plane magnetization anisotropy. Saturation magnetization (Ms) increased with increasing Co concentration and reached 1421 emu/cm3 for Co100. The perpendicular coercivity (Hc⊥) was higher than that in-plane (Hc∥). The Ni50Co50 film had the highest Hc⊥ and microhardness compared to other films of different compositions. The critical load for delamination increased with x and was independent of film thickness. In this polyol process film deposition on the substrate competed with undesirable powder precipitation in the solution. Lowering the reaction temperature did not favor film deposition. However, film deposition occurred when an electric field was applied during the reaction at temperature as low as 100°C. Precipitation of colloidal particles persisted at this low temperature in a different diol. © 2001 Elsevier Science B.V. All rights reserved.
Source Title: Materials Science and Engineering A
URI: http://scholarbank.nus.edu.sg/handle/10635/107024
ISSN: 09215093
DOI: 10.1016/S0921-5093(00)01434-9
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

19
checked on Dec 7, 2019

WEB OF SCIENCETM
Citations

21
checked on Nov 29, 2019

Page view(s)

69
checked on Nov 30, 2019

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.