| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8029430 | Surface and Coatings Technology | 2013 | 8 Pages |
Abstract
We have coated NdFeB melt-spun powders used for the production of bonded magnets with SiO2 and Al2O3 using the sol-gel technique. Highly accelerated stress tests were conducted to compare the corrosion properties of the powders by measuring the weight change. The composition and microstructure of the powders and surface layers were determined using Auger-electron spectroscopy, X-ray photoelectron spectroscopy, Raman spectroscopy, secondary-electron spectroscopy and electron-diffraction spectroscopy. The magnetic properties were compared using a vibrating-sample magnetometer. Both the SiO2 and Al2O3 coatings resulted in a superior corrosion resistance and better magnetic properties.
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
D. Sojer, I. Skulj, S. Kobe, J. KovaÄ, P.J. McGuiness,