• Bulk nanocomposite magnets produced by dynamic shock compaction 

      Chen, K. H.; Jin, Z. Q.; Li, Jing; Kennedy, G.; Wang, Z. L. (Zhong Lin); Thadhani, Naresh N.; Zeng, Hao; Cheng, S.-F.; Liu, J. Ping (Georgia Institute of TechnologyAmerican Institute of Physics, 2004-07-15)
      Exchange-coupled R₂Fe₁₄B/α -Fe (R = Nd or Pr) nanocomposite bulk magnets with nearly full density have been successfully produced by shock compaction of melt-spun powders. X-ray diffraction and transmission electronic ...
    • Exchange-coupled FePt nanoparticle assembly 

      Zeng, Hao; Sun, Shouheng; Vedantam, T. S.; Dai, Z. R.; Liu, J. Ping; Wang, Z. L. (Zhong Lin) (Georgia Institute of TechnologyAmerican Institute of Physics, 2002-04-08)
      We have produced exchange-coupled FePt nanoparticle assemblies by chemical synthesis and subsequent thermal annealing. As the interparticle distances decrease by tuning the annealing conditions, interparticle interactions ...
    • Explosive shock processing of Pr₂Fe₁₄B/α–Fe exchange-coupled nanocomposite bulk magnets 

      Jin, Z. Q.; Thadhani, Naresh N.; McGill, M.; Ding, Yong; Wang, Z. L. (Zhong Lin); Chen, M.; Zeng, Hao; Chakka, V. M.; Liu, J. Ping (Georgia Institute of TechnologyMaterials Research Society, 2005-03)
      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 ...
    • Grain size dependence of magnetic properties in shock synthesized bulk Pr₂Fe₁₄B/α-Fe nanocomposites 

      Jin, Z. Q.; Thadhani, Naresh N.; McGill, M.; Li, Jing; Ding, Yong; Wang, Z. L. (Zhong Lin); Zeng, Hao; Chen, M.; Cheng, S.-F.; Liu, J. Ping (Georgia Institute of TechnologyAmerican Institute of Physics, 2004-09-15)
      The structural and magnetic properties of the melt-spun Pr₂Fe₁₄B/α-Fe nanocomposite powders consolidated via shock-wave compression and subjected to postshock thermal treatment were investigated. Shock compression results ...
    • Interface structures in FePt/Fe₃Pt hard-soft exchange-coupled magnetic nanocomposites 

      Li, Jing; Wang, Z. L. (Zhong Lin); Zeng, Hao; Sun, Shouheng; Liu, J. Ping (Georgia Institute of TechnologyAmerican Institute of Physics, 2003-05-26)
      Self-assembly of FePt and Fe₃O₄ nanoparticles of different sizes led to various FePt–Fe₃O₄ nanocomposites. Annealing the composite under reducing atmosphere at 650 and 700 °C induced magnetically hard FePt phase and ...
    • Tailoring magnetic properties of core/shell nanoparticles 

      Zeng, Hao; Sun, Shouheng; Li, Jing; Liu, J. Ping; Wang, Z. L. (Zhong Lin) (Georgia Institute of TechnologyAmerican Institute of Physics, 2004-08-02)
      Bimagnetic FePt/MFe₂O₄ sM=Fe,Cod core/shell nanoparticles are synthesized via high-temperature solution phase coating of 3.5 nm FePt core with MFe₂O₄ shell. The thickness of the shell is controlled from 0.5 to 3 nm. An ...