Journal
SURFACE & COATINGS TECHNOLOGY
Volume 205, Issue 1, Pages 195-199Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.surfcoat.2010.06.035
Keywords
Alloy matrix composite; Magnetic properties; Slurry eductor; Flow cell; Plating
Funding
- Politecnico di Milano (Italy) [HI2008-0058]
- Universitat de Barcelona (Spain) [HI2008-0058]
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The usefulness of a forced flow cell in preparing composite layers several microns in thickness has been amply demonstrated. In the tested cell, the electrolyte is pumped and reintroduced into the cell by little holes situated in front of the substrate. Ni-Co/Fe12O19Ba0.2Sr0.8 composites have been prepared by using sulfamate electroplating bath. Different concentrations of barium-strontium ferrite microparticles (0-20 gl(-1)) were used in the bath. The cell allows a good distribution of the particles into the metallic matrix to be obtained. A maximum ferrite incorporation of 20 wt.% was obtained. Changes in microstructure, mechanical and magnetic properties were studied in correlation with the percentage of particles incorporated in the CoNi matrix. (C) 2010 Elsevier B.V. All rights reserved.
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