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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Rada, M. Kardelky, S. Mazilu, I. Kirchner, A. Gebert, A. Gutfleisch, O. Schultz, L. |
| Copyright Year | 1965 |
| Abstract | The corrosion resistance of polymer bonded nanocrystalline NdFeB magnets with Nd-rich, stoichiometric, and Fe-rich compositions and that of their main constituent single phases is assessed in aqueous environments. For the evaluation of corrosion properties, gravimetric tests as well as potentiodynamic polarization measurements were performed in different nitrogen-purged electrolytes: 0.1 M sulfuric acid (pH=1), 0.5 M phthalate buffer (pH=5), and 0.1 M sodium hydroxide (pH=13). The single phases show anodic dissolution in strong acidic environment and stable passivation in alkaline solution. In weakly acidic phthalate buffer Nd-rich and Fe phases exhibit limited passive regions, whereas Fe/sub 3/B and Nd/sub 2/Fe/sub 14/B do not show stable passivation. Polymer-bonded magnets of different compositions have a significantly improved resistance toward strongly acidic environments as compared to hot pressed magnets. Enrichment in Fe content and additions like Co and Nb improve their corrosion behavior. |
| Sponsorship | IEEE Magnetics Society |
| Starting Page | 2864 |
| Ending Page | 2866 |
| Page Count | 3 |
| File Size | 112972 |
| File Format | |
| ISSN | 00189464 |
| Volume Number | 40 |
| Issue Number | 4 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2004-07-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Corrosion Polymers Magnets Iron Passivation Bonding Testing Polarization Electrical resistance measurement Performance evaluation |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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