Title:
Controlling the crystallization and magnetic properties of melt-spun Pr₂Fe₁₄B/α Fe nanocomposites by Joule heating
Controlling the crystallization and magnetic properties of melt-spun Pr₂Fe₁₄B/α Fe nanocomposites by Joule heating
| dc.contributor.author | Jin, Z. Q. | |
| dc.contributor.author | Cui, B. Z. | |
| dc.contributor.author | Liu, J. Ping | |
| dc.contributor.author | Ding, Yong | |
| dc.contributor.author | Wang, Z. L. (Zhong Lin) | |
| dc.contributor.author | Thadhani, Naresh N. | |
| dc.contributor.corporatename | Georgia Institute of Technology. School of Materials Science and Engineering | |
| dc.contributor.corporatename | University of Texas at Arlington. Dept. of Physics | |
| dc.contributor.corporatename | National High Magnetic Field Laboratory | |
| dc.date.accessioned | 2009-02-27T20:53:01Z | |
| dc.date.available | 2009-02-27T20:53:01Z | |
| dc.date.issued | 2004-05-12 | |
| dc.description | ©2004 American Institute of Physics. The electronic version of this article is the complete one and can be found online at: http://link.aip.org/link/?APPLAB/84/4382/1 | en |
| dc.description | DOI:10.1063/1.1757017 | |
| dc.description.abstract | Pr₂Fe₁₄B/α Fe based nanocomposites have been prepared through crystallization of melt-spun amorphous Pr₇Tb₁Fe₈₅Nb ₀.₅ Zr ₀.₅ B₆ ribbons by means of ac Joule heating while simultaneously monitoring room-temperature electrical resistance R. The R value shows a strong variation with respect to applied current I, and is closely related to the amorphous-to-nanocrystalline phase transformation. The curve of R versus I allows one to control the crystallization behavior during Joule heating and to identify the heat-treatment conditions for optimum magnetic properties. A coercivity of 550 kA/m and a maximum energy product of 128 kJ/m³ have been obtained upon heating the amorphous ribbons at a current of 2.0 A. These properties are around 30% higher than the values of samples prepared by conventionally (furnace) annealed amorphous ribbons. | en |
| dc.identifier.citation | Applied Physics Letters, 84 (2004) 4382-4384 | en |
| dc.identifier.issn | 0003-6951 | |
| dc.identifier.uri | http://hdl.handle.net/1853/27181 | |
| dc.language.iso | en_US | en |
| dc.publisher | Georgia Institute of Technology | en |
| dc.publisher.original | American Institute of Physics | |
| dc.subject | Praseodymium alloys | en |
| dc.subject | Iron alloys | en |
| dc.subject | Boron alloys | en |
| dc.subject | Iron | en |
| dc.subject | Nanocomposites | en |
| dc.subject | Crystallization | en |
| dc.subject | Electric resistance | en |
| dc.subject | Electrical conductivity | en |
| dc.subject | Annealing | en |
| dc.subject | Coercive force | en |
| dc.title | Controlling the crystallization and magnetic properties of melt-spun Pr₂Fe₁₄B/α Fe nanocomposites by Joule heating | en |
| dc.type | Text | |
| dc.type.genre | Article | |
| dspace.entity.type | Publication | |
| local.contributor.author | Thadhani, Naresh N. | |
| local.contributor.corporatename | School of Materials Science and Engineering | |
| local.contributor.corporatename | College of Engineering | |
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