Title:
Explosive shock processing of Pr₂Fe₁₄B/α–Fe exchange-coupled nanocomposite bulk magnets
Explosive shock processing of Pr₂Fe₁₄B/α–Fe exchange-coupled nanocomposite bulk magnets
| dc.contributor.author | Jin, Z. Q. | |
| dc.contributor.author | Thadhani, Naresh N. | |
| dc.contributor.author | McGill, M. | |
| dc.contributor.author | Ding, Yong | |
| dc.contributor.author | Wang, Z. L. (Zhong Lin) | |
| dc.contributor.author | Chen, M. | |
| dc.contributor.author | Zeng, Hao | |
| dc.contributor.author | Chakka, V. M. | |
| dc.contributor.author | Liu, J. Ping | |
| 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 | Thomas J. Watson IBM Research Center | |
| dc.date.accessioned | 2009-03-30T17:28:45Z | |
| dc.date.available | 2009-03-30T17:28:45Z | |
| dc.date.issued | 2005-03 | |
| dc.description | ©2005 Materials Research Society. The original publication is available at: http://www.mrs.org/ | en |
| dc.description | DOI: 10.1557/JMR.2005.0085 | |
| dc.description.abstract | Explosive shock compaction was used to consolidate powders obtained from melt-spun Pr₂Fe₁₄B/α–Fe nanocomposite ribbons, to produce fully dense cylindrical compacts of 17–41-mm diameter and 120-mm length. Characterization of the compacts revealed refinement of the nanocomposite structure, with approximately 15 nm uniformly sized grains. The compact produced at a shock pressure of approximately 1 GPa maintained a high coercivity, and its remanent magnetization and maximum energy product were measured to be 0.98 T and 142 kJ/m³, respectively. The compact produced at 4–7 GPa showed a decrease in magnetic properties while that made at 12 GPa showed a magnetic softening behavior. However, in both of these cases, a smooth hysteresis loop implying exchange coupling and a coercivity of 533 kA/m were fully recovered after heat treatment. The results illustrate that the explosive compaction followed by post-shock heat treatment can be used to fabricate exchange-coupled nanocomposite bulk magnets with optimized magnetic properties. | en |
| dc.identifier.citation | Journal of Materials Research, 20 (2005) 599-609 | en |
| dc.identifier.issn | 0884-2914 | |
| dc.identifier.uri | http://hdl.handle.net/1853/27456 | |
| dc.language.iso | en_US | en |
| dc.publisher | Georgia Institute of Technology | en |
| dc.publisher.original | Materials Research Society | |
| dc.subject | Exchange interactions (electron) | |
| dc.subject | Shock wave effects | |
| dc.subject | Melt spinning | |
| dc.subject | Nanocomposites | |
| dc.subject | Magnetic hysteresis | |
| dc.subject | Boron alloys | |
| dc.subject | Praseodymium alloys | |
| dc.subject | Iron alloys | |
| dc.subject | Exchange-coupled nanocomposite bulk magnets | |
| dc.title | Explosive shock processing of Pr₂Fe₁₄B/α–Fe exchange-coupled nanocomposite bulk magnets | 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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