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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Gutfleisch, O. Gebel, B. Kubis, M. Muller, K.H. Schultz, L. |
| Copyright Year | 1965 |
| Abstract | The magnetic properties of Nd/sub 16.2/Fe/sub 78.2/B/sub 5.6/, Nd/sub 12.6/Fe/sub 81.4/B/sub 6.0/ and Nd/sub 12.6/Fe/sub 69.4/Co/sub 11.0/Ga/sub 1.0/B/sub 6.0/ alloys after the application of modified HDDR (hydrogenation-disproportionation-desorption-recombination) procedures have been investigated and particular emphasis has been given to the development of magnetic anisotropy and high coercivity in these different types of materials. Conventional HDDR processing leads to anisotropic material only in the case of the Nd/sub 12.6/Fe/sub 69.4/Co/sub 11.0/Ga/sub 1.0/B/sub 6.0/ alloy. Combining solid-disproportionation with a controlled recombination under partial hydrogen pressure at 900/spl deg/C, a significant degree of anisotropy and a good coercivity were achieved for the two ternary alloys. These findings indicate the possibility of more than one mechanism and the relevance of the rod-like solid-disproportionated structure for the inducement of anisotropy. Another modification of the standard procedure, the reactive milling technique, leads to isotropic Nd/sub 16.2/Fe/sub 78.2/B/sub 5.6/ powder with grain sizes, both in the disproportionated and recombined states, significantly smaller than those of conventional powder and a very high coercivity of /spl mu//sub 0J/H/sub c/=1.88T. |
| Sponsorship | IEEE Magnetics Society |
| Starting Page | 3250 |
| Ending Page | 3252 |
| Page Count | 3 |
| File Size | 259928 |
| File Format | |
| ISSN | 00189464 |
| Volume Number | 35 |
| Issue Number | 5 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1999-09-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Neodymium Coercive force Anisotropic magnetoresistance Cobalt alloys Gallium alloys Iron alloys Magnetic materials Powders Magnetic properties Magnetic anisotropy |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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