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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Inoue, A. Zhang, T. Takeuchi, A. |
| Copyright Year | 1965 |
| Abstract | An amorphous phase in Ln-Fe-Al (Ln=Nd and Pr) systems is formed in wide composition ranges of 0 to 90 at% Fe and 0 to 93 at% Al by melt spinning. Ferromagnetic Ln/sub 90-x/Fe/sub x/Al/sub 10/ bulk amorphous alloys with high coercive force (/sub i/H/sub c/) at room temperature are obtained by copper mold casting. The maximum diameter of the cylindrical amorphous samples is 12 mm for the Nd-30%Fe-Al alloy and 3 mm for the Pr-30%Fe-Al alloys and decreases with deviating Fe content. The extremely high T/sub x//T/sub m/ and small /spl Delta/T/sub m/(=T/sub m/-T/sub x/), which are evaluated by the crystallization temperature (T/sub x/) and melting temperature (T/sub m/), are the reason for the achievement of large glass-forming ability in these systems. The bulk amorphous Ln/sub 60/Fe/sub 30/Al/sub 10/ alloys are ferromagnetic with the Curie temperature of 515 to 600 K which are higher than those for Nd-Fe and Pr-Fe binary amorphous ribbons. The remanence and /sub i/H/sub c/ are 0.089 to 0.122 T and 277 to 321 kA/m, respectively and the crystallization to Ln+Al/sub 2/Ln+/spl delta/ causes a ferromagnetic-to-paramagnetic transition. Thus, the hard magnetic properties are achieved only in the amorphous state. |
| Sponsorship | IEEE Magnetics Society |
| Starting Page | 3814 |
| Ending Page | 3816 |
| Page Count | 3 |
| File Size | 596936 |
| File Format | |
| ISSN | 00189464 |
| Volume Number | 33 |
| Issue Number | 5 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1997-09-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Amorphous magnetic materials Amorphous materials Iron alloys Temperature Aluminum alloys Crystallization Spinning Copper alloys Coercive force Casting |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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