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Zhiqiang Jin
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Zhiqiang Jin

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Office: Love Building room 153
Telephone: N/A
Fax: 404-894-9140
Email: zq.jin@mse.gatech.edu
Mailing Address: School of Materials Science and Engineering
Georgia Institute of Technology
771 Ferst Dr. N.W.
Atlanta, GA 30332
Biosketch | Research Area | Publications | Highlights | Honors

Biosketch

  • Research Associate at the Magnetics Laboratory, Department of Physics and Astronomy, University of Delaware, working on nanocomposite rare-earth magnets under DARPA program funded by U.S. Department of Defense, Jul. 2000 - Oct. 2002.
  • Visiting Scholar at the Electromagnetic Materials Physics Group, Department of Physics and Astronomy, University of Delaware, working on giant magnetoresistance film materials and development of magnetic spin valve material, Mar. 2000 - Jun. 2000.
  • Faculty at National Key Lab of Solid State Microstructure Physics and Department of Physics, Nanjing University, China. Duties include research work on nanostructured magnetic materials and teaching courses for undergraduates, Jul. 1998 - Mar. 2000.
  • Visiting Scholar at Department of Electronic Engineering, The Chinese University of Hongkong, China, studying on magnetic and electric properties of granular films, Jul. 1998 - Oct. 1998.
  • PhD in Department of Physics, Nanjing University, Nanjing, China, 1998.
  • Master of Engineering in Institute of Metal Research, Chinese Academy of Sciences, China, 1995.
  • Bachelor of Science in Department of Physics, Jiangxi University, Nanchang, China, 1992.

Research Area

  • Use novel processing techniques to develop high-performance nanocomposite magnets.
  • Develop advanced nanostructural materials for civilian and defense application, such as information storage, space operations, navigation, and telecommunication technology etc.
  • Search for less expensive magnets with superior properties for use in compact energy conversion devices.
  • Search for new rare-earth-transition-metal-based compounds with large anisotropy, high magnetization, large energy product and Curie temperature which can be used for permanent magnet development.
  • Improve the mechanical and magnetic properties of nanocomposites by modifying the intergranular microstructure through intergranular additives which would lead to high-temperature applications of these magnets, as well as improved alignment of the axes of the hard grains to exploit the full magnetic potential of the nanocomposite system.

Publications

  1. "Shock compression response of magnetic nanocomposite powders", Jin ZQ, Chen KH, Li J, Zeng H, Cheng S-F, Liu JP, Wang ZL, Thadhani NN, Acta Mater., 52 (2004) 2147-2154.
  2. "Controlling the crystallization and magnetic properties of melt-spun Pr2Fe14B/a-Fe nanocomposites by Joule heating", Jin ZQ, Cui BZ, Liu JP, Y. Ding, Z. L. Wang, Thadhani NN, Appl. Phys. Lett., 84 (2004) 4382-4384.
  3. "Shock compaction of bulk nanocomposite magnetic materials",Jin ZQ, Rockett C, Liu JP, Hokamoto K, Thadhani NN, Materials Science Forum, 465-466 (2004) 93-100.
  4. "Grain size dependence of magnetic properties in shock synthesized bulk Pr2Fe14B/a-Fe nanocomposite", Jin ZQ, Thadhani NN, McGill M, Li J, Ding Y, Wang ZL, Zeng H, Chen M, Cheng SF, Liu P, J. Appl. Phys., 96 (204) 3452-3457.
  5. "Bulk Nanocomposite Magnets Produced by Dynamic Shock Compaction", Chen KH, Jin ZQ, Li J, Kennedy G, Wang ZL, Thadhani NN, Zeng H, Cheng SF, Liu JP, J Appl. Phys., 96 (2004) 1276-1278.
  6. "Amorphization and Ultra-Fine Scale Re-crystallization in Shear Bands Formed in Shock-Consolidated Pr2Fe14B/a-Fe Nanocomposite Magnets", Li J, Jin ZQ, Liu JP, Wang ZL, Thadhani NN, Appl. Phys. Lett., 85 (2004) 2223-2225.
  7. "Explosive shock processing of Pr2Fe14B/a-Fe exchange-coupled nanocomposite bulk magnets", Jin ZQ, Thadhani NN, McGill M, Ding Y, Wang ZL, Chen M, Zeng H, Chakka VM, Liu JP, J MATER RESEARCH, (in press, 2004)
  8. "The improved magnetic properties in phosphorus substituted Pr-Fe-B-P nanocomposites", Jin ZQ, Zhang Y, Wang HL, Klaessig A, Hadjipanayis GC, J APPL. PHYS. 93 (2003) 6492-6494.
  9. "Effects of Co substitution on the magnetic and microstructural properties of melt-spun Pr7Tb1Fe87-xCoxNb0.5Zr0.5B4 nanocomposites", Wang HL, Zhang Y, Jin ZQ, Hadjipanayis GC, IEEE T MAGN 39 (2003) 2941-2943.
  10. "Effect of Co substitution on the crystallization behavior and magnetic properties of melt-spun (Pr,Tb)2(Fe,Nb,Zr)14B/α-Fe nanocomposites", Wang H, Zhang Y, Jin ZQ, Hadjipanayis GC, J APPL PHYS 93 (2003) 7978-7980.
  11. "Multi-step crystallization evolution in nanocomposite Pr8Fe86B6 alloys", Jin ZQ, Okumura H, Munoz JS, Zhang Y, Wang HL, Hadjipanayis GC, J PHYS D APPL PHYS 35 (22): 2893-2896 NOV 21 2002.
  12. "Microstructures and magnetic properties of (Pr,Tb)2(Fe,Nb,Zr)14B/a-Fe nanocomposites", Jin ZQ, Okumura H, Wang HL, Hadjipanayis GC, J APPL PHYS 91: (10) 8165-8167 2002.
  13. "Crystallization behavior and magnetic properties of melt-spun (Pr,Tb)2(Fe,Nb)14B/a-Fe nanocomposites", Jin ZQ, Okumura H, Wang HL. Muñoz S, Papaefthymiou V, Hadjipanayis GC, J MAGN MAGN MATER 242: 1307-1309 Part 2 APR 2002.
  14. "Microstructure refinement and significant improvements of magnetic properties in Pr2Fe14B/a-Fe nanocomposites", Jin ZQ, Okumura H, Wang HL. Muñoz JS, Papaefthymiou V, Hadjipanayis GC, J MAGN MAGN MATER 248: (2) 216-222 2002.
  15. "Crystallographic Texture Study in Melt-Spun Pr-Fe-B 2:14:1 Based Nanocomposite", Zhang Y, Jin ZQ, Wang HL, Hadjipanayis GC, Microsc. Microanal. 8 (suppl. 2) 1378-1379, 2002.
  16. "The influence of Tb substitution on the magnetic properties of nanocomposite Pr2Fe14B/alpha-Fe magnets", Jin ZQ, Okumura H, Hadjipanayis GC, IEEE TRANS MAGN 37: (4) 2564-2566 Part 1 JUL 2001.
  17. "PZT thin films with preferred-orientation induced by external stress", Qin HX, Zhu JS, Jin ZQ, Wang YN, FERROELECTRICS, 252 (1-4): 549-556 2001.
  18. "The influence of processing on properties and microstructure of Bi4-XLaXTi3O12 thin films", Qin HX, Bao ZH, Zhu JS, Jin ZQ, Wang YN, FERROELECTRICS, 261 (1-4): 723-728 2001.
  19. "Synthesis and magnetostriction of melt-spun Pr1-xTbx(Fe0.6Co0.4)2 alloys", Tang SL, Wang DH, Yang SG, Jin ZQ, Zhang JR, Zhang SY, Du YW, J APPL PHYS 91: (1) 271-273 JAN 1 2001.
  20. "Structure and magnetic properties of melt-spun PrFe10Mo2Nx compounds", Jin ZQ, Zhang JR, Tang SL, Du YW, J APPL PHYS 87: (9) 5290-5292 Part 2 MAY 1 2000.
  21. "Crystallization dynamics and magnetoresistance of perovskite-like manganate synthesized by mechanical alloying", Jin ZQ, Qin HX, Zhang JR, Du YW, J PHYS-CONDENS MAT 12: (14) 3497-3503 APR 10 2000.
  22. "Oriented growth in PZT thin films", Qin HX, Zhu JS, Jin ZQ, Wang YN, INTEGR FERROELECTR 30: (1-4) 175-182 2000.
  23. "PZT thin films with preferred-orientation induced by external stress", Qin HX, Zhu JS, Jin ZQ, Wang YN, THIN SOLID FILMS 379: (1-2) 72-75 DEC 8 2000.
  24. "Investigation of phase formation of RFe11V1-xTix (R = Pr, Ce) compounds", Tang SL, Lui LY, Jin ZQ, Zhang JR, Zhang SY, Du YW, J MATER SCI 35: (9) 2241-2244 MAY 2000.
  25. "Preparation and magnetic property of Fe nanowire array", Yang SG, Zhu H, Yu DL, Jin ZQ, Tang SL, Du YW, J MAGN MAGN MATER 222: (1-2) 97-100 DEC 2000.
  26. "Structure and magnetic properties of melt-spinning Pr(Fe0.6Co0.4)2 alloys", Tang SL, Wang DH, Cao QQ, Jin ZQ, Zhang JR, Zhang SY, Du YW, J APPL PHYS 87: (9) 6289-6291 Part 3 MAY 1 2000.
  27. "Effect of Pr3+ doping concentration on the structure and magnetic properties of SrFe12O19 compounds", Jin ZQ, Jin J, Zhang JR, Du YW, ACTA PHYS SIN-CH ED 48: (12) S93-S97 Suppl. S DEC 1999.
  28. "Crystallization dynamics and magnetoresistance of La0.7Ca0.3MnO3 synthesized by mechanical alloying", Jin ZQ, Qin HX, Zhang JR, Wang DH, Du YW, ACTA PHYS SIN-CH ED 48: (12) S230-S235 Suppl. S DEC 1999.
  29. "GMR Effects and Domain Structures in Granular Magnetic Thin Films Prepared by Pulsed Filtered Arc Co-Deposition" S.P. Wong, M.F. Chiah, W.Y. Cheung, N. Ke, Z.Q. Jin, X.Y. Wu, J.B. Xu, IEICE Technical Report, Vol. 98, No. 621, MR98-78 (1999) p. 1-7.
  30. "Nonequilibrium phase transition of Nd3(Fe,Ti)29 compound during mechanical milling", Tang SL, Jin ZQ, Zhang SY, Du YW, NANOSTRUCT MATER 12: (5-8) 705-708 Part B Sp. Iss. SI JUL 1999.
  31. "Effect of different wheel speed on magnetic properties of Nd8Fe85Mo1B6", Yin JH, Ji QG, Jin ZQ, Tang SL, Zhang JR, Du YW, ACTA PHYS SIN-CH ED 48: (12) S164-S168 Suppl. S DEC 1999.
  32. "Structure and magnetic properties of PrFe10VxMo2-x compounds and their nitrides", Tang SL, Yin JH, Jin ZQ, Zhang JR, Zhang SY, Du YW, J APPL PHYS 85: (8) 4687-4689 Part 2A APR 15 1999.
  33. "New modified Sr-ferrite particles for high density magnetic recording", Fang QQ, Zhong W, Jin ZQ, Du YW, J APPL PHYS 85: (3) 1667-1669 FEB 1 1999.
  34. "New synthesis of polycrystalline La0.7(SrxCa1-x)0.3MnO3 by mechanical alloying", Jin ZQ, Zhang JR, Tang W, Du YW, SOLID STATE COMMUN 108: (11) 867-871 NOV 13 1998.
  35. "Structural and magnetic properties of PrFe10Mo2Ny prepared by hydrogenation-disproportionation-desorption-recombination and nitrogenation processes", Jin ZQ, Tang W, Zhang JR, Lu LY, Tang SL, Du YW, J MAGN MAGN MATER 187: (2) 231-236 AUG 1998.
  36. "Giant magnetoresistance in mechanical alloyed La0.7Sr0.06Ca0.24MnO3 perovskite", Jin ZQ, Tang W, Zhang JR, Du YW, J MAGN MAGN MATER 187: (2) 237-241 AUG 1998.
  37. "Effective magnetic anisotropy of nanocrystalline Nd-Fe-Ti-N hard magnetic alloys", Jin ZQ, Tang W, Zhang JR, Qin HX, Du YW, EUR PHYS J B 3: (1) 41-44 MAY 1998.
  38. "Nitriding behavior of nanocrystalline NdFe10.5VTi0.5 compounds", Jin ZQ, Tang W, Zhang JR, Lu LY, Tang SL, Du YW, J MAGN MAGN MATER 185: (1) 71-76 MAY 1998.
  39. "Magnetic properties of isotropic SrFe12O19 fine particles prepared by mechanical alloying", Jin ZQ, Tang W, Zhang JR, Lin H, Du YW, J MAGN MAGN MATER 182: (1-2) 231-237 FEB 1998.
  40. "Evaluation of exchange interactions in (GdxY1-x)3Co11B4 compounds", Jin ZQ, Tang W, Qin HX, Zhang JR, Du YW, J MAGN MAGN MATER 177: 1115-1116 Part 2 JAN 1998.
  41. "Influence of Mo addition on the microstructure and magnetic properties of Sm2(Fe, Al, Mo)17C1.5 alloys", Tang W, Jin ZQ, Yin JH, Zhang JR, Tang SL, Du YW, Wei FL, Yang Z, J MAGN MAGN MATER 186: (1-2) 115-120 JUL 1998.
  42. "Effect of composition on crystalline texture and magnetic properties of Nd2Fe14B thin films", Tang W, Jin ZQ, Zhang JR, Gu G, Li JM, Du YW, J MAGN MAGN MATER 185: (2) 241-245 JUN 1998.
  43. "High-coercivity Sm2(Fe,Al,Mo)17C1.5 ribbons with addition of Mo", Tang W, Jin ZQ, Yin JH, Zhang JR, Zhang SY, Du YW, J APPL PHYS 83: (10) 5585-5587 MAY 15 1998.
  44. "Studies on the structure and magnetic properties of Sm2(Fe,Al)17CY alloys with Zr additions", Tang W, Zhang JR, Jin ZQ, Lu LY, Du YW, Wang Y, Xu JJ, J ALLOY COMPD 281: (1) 56-59 NOV 20 1998.
  45. "Formation, structure and magnetic hardening of Zr added Sm2(Fe,Al,Zr)17C1.5 compounds", Tang W, Lu LY, Jin ZQ, Zhang JR, Zhang SY, Du YW, J MAGN MAGN MATER 184: (2) 209-214 APR 1998.
  46. "Phase transformation and magnetic properties of mechanically alloyed NdFe12‑xMoxNy", Tang SL, Jin XM, Wang BW, Jin ZQ, Zhang SY, Du YW, J ALLOY COMPD 279: (2) 229-232 OCT 2 1998.
  47. "Dependence of magnetic properties on microstructure in mechanically alloyed NdFeTiN", Jin ZQ, Sun XK, Liu W, Zhao XG, Xiao QF, Sui YC, Zhang ZD, Wang ZG, Qin HX, J MAGN MAGN MATER 169: (1-2) 135-144 MAY 1997.
  48. "Microstructure and magnetic properties of rapidly quenched Sm2(Fe,Al,Zr)17C1.5 ribbons with Zr additions", Tang W, Jin ZQ, Zhang JR, Lu LY, Zhang SY, Du YW, J APPL PHYS 82: (12) 6351-6353 DEC 15 1997.
  49. "Structural and magnetic evolution of rapidly quenched Sm-Fe-Si-C alloys" Tang W, Jin ZQ, Zhang JR, Zhang SY, Du YW, J APPL PHYS 82: (10) 5054-5056 NOV 15 1997.
  50. "Structure and magnetic properties of mechanical alloyed Nd-Fe-Ti compounds and their nitrides", Jin ZQ, Sun XK, Liu W, Zhao XG, Xiao QF, Sui YC, Zhang ZD, Wang ZG, J APPL PHYS 79: (8) 5525-5527 Part 2A APR 15 1996.

Research Highlights

  • Dynamic compaction and application of novel and less-expensive high performance nanocomposite permanent magnets (2002-present).
  • Developed rare-earth nanocomposite magnets with high magnetic properties, and studied anisotropic characteristic and crystallization behavior of magnetic materials. (2000-present)
  • Studied the magnetic and spin-dependent transport properties of granular film (1998-2000).
  • Developed nanostructured perovskite-like manganate with large magnetoresistance effect (1995-2000).
  • Developed nanostructured rare-earth nitrides magnets utilizing mechanical alloying, melt-spinning and hydrogenation process (1992-2000).
  • Developed single-phase nanocrystalline rare-earth permanent magnets (1995-2000).
  • Developed nanostructure magnetic ferrites, magnetic thin films and magnetostriction materials (1995-1998).

Honors & Awards