Evolution of structural and magnetic properties due to nanocrystallization of mechanically milled amorphous Pr-Co-B powders

Ucar, Huseyin; Nlebedim, Ikenna C.; Parans Paranthaman, M.; William McCallum, R.

doi:10.1063/1.4904359

Title: Evolution of structural and magnetic properties due to nanocrystallization of mechanically milled amorphous Pr-Co-B powders

Journal Article · Wed Dec 17 00:00:00 EST 2014 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.4904359· OSTI ID:1286721

Ucar, Huseyin ^[1]; Nlebedim, Ikenna C. ^[2]; Parans Paranthaman, M. ^[1]; William McCallum, R. ^[2]

Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Ames Lab., Ames, IA (United States)

In this paper, Pr₂Co₁₄B permanent magnet powders were prepared by mechanical milling of an arc-melted ingot. X-ray diffraction analysis revealed the presence of the 2:14:1 phase after 1 h of milling which transformed into an amorphous phase with additional milling time. Increasing the milling time also lowered the intrinsic coercivity while the saturation magnetization increased up to 105 emu/g. Differential scanning calorimetry measurements revealed a crystallization temperature of around 560 °C. Upon annealing 30 h of as-milled amorphous powders between 500 and 900 °C, we observed the precipitation of the 2:14:1 phase. Finally, the optimum post-milling annealing temperature was 600 °C with an intrinsic coercivity of 7 kOe and maximum energy product of 6 MGOe.

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Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Critical Materials Institute (CMI)

Sponsoring Organization:: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Energy Efficiency Office. Advanced Manufacturing Office

Contributing Organization:: Ames Lab., Ames, IA (United States)

Grant/Contract Number:: AC05-00OR22725

OSTI ID:: 1286721

Alternate ID(s):: OSTI ID: 1420596

Journal Information:: Journal of Applied Physics, Vol. 116, Issue 23; ISSN 0021-8979

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 7 works

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References (20)

Mechanical alloying and milling Suryanarayana, C. Progress in Materials Science, Vol. 46, Issue 1-2, p. 1-184 https://doi.org/10.1016/S0079-6425(99)00010-9	journal	January 2001
Magnetic hardening of Nd ₂ Co ₁ ₄ B Fuerst, C. D.; Herbst, J. F. Applied Physics Letters, Vol. 52, Issue 16 https://doi.org/10.1063/1.99687	journal	April 1988
Effect of mechanical milling on the structure and magnetic properties of Miao, W. F.; Ding, J.; McCormick, P. G. Journal of Physics D: Applied Physics, Vol. 29, Issue 9 https://doi.org/10.1088/0022-3727/29/9/021	journal	September 1996
Studies of sintered MRE-Fe-B magnets by DyF ₃ addition or diffusion treatment (MRE = Nd + Y + Dy) Tang, W.; Dennis, K. W.; Kramer, M. J. Journal of Applied Physics, Vol. 111, Issue 7 https://doi.org/10.1063/1.3679465	journal	April 2012
Dysprosium-saving improvement of coercivity in Nd-Fe-B sintered magnets by Dy ₂ S ₃ additions Gabay, A. M.; Marinescu, M.; Li, W. F. Journal of Applied Physics, Vol. 109, Issue 8 https://doi.org/10.1063/1.3574444	journal	April 2011
Spin arrangements in R2Co14B compounds (R = rare earth) Pedziwiatr, A. T.; Wallace, W. E. Solid State Communications, Vol. 60, Issue 8 https://doi.org/10.1016/0038-1098(86)90262-0	journal	November 1986
Magnetic properties of a Nd–Fe–B sintered magnet with Dy segregation Suzuki, Hiroyuki; Satsu, Yuichi; Komuro, Matahiro Journal of Applied Physics, Vol. 105, Issue 7 https://doi.org/10.1063/1.3073830	journal	April 2009
Grain boundary structure and chemistry of Dy-diffusion processed Nd–Fe–B sintered magnets Sepehri-Amin, H.; Ohkubo, T.; Hono, K. Journal of Applied Physics, Vol. 107, Issue 9 https://doi.org/10.1063/1.3351247	journal	May 2010
Increase of Coercivity and Composition Distribution in Fluoride-Diffused NdFeB Sintered Magnets Treated by Fluoride Solutions Komuro, Matahiro; Satsu, Yuichi; Suzuki, Hiroyuki IEEE Transactions on Magnetics, Vol. 46, Issue 11 https://doi.org/10.1109/TMAG.2010.2064780	journal	November 2010
Studies of New YDy-Based<tex>$hboxR_2hboxFe_14hboxB$</tex>Magnets for High Temperature Performance<tex>$(hboxR=hboxY+hboxDy+hboxNd)$</tex> Tang, W.; Dennis, K. W.; Wu, Y. Q. IEEE Transactions on Magnetics, Vol. 40, Issue 4 https://doi.org/10.1109/TMAG.2004.829014	journal	July 2004
Structure and magnetic properties of cobalt-rich Pr-Co-B alloys Chuang, Y. C.; Wu, C. H.; Chang, T. D. Journal of the Less Common Metals, Vol. 144, Issue 2 https://doi.org/10.1016/0022-5088(88)90138-5	journal	December 1988
Magnetic hardening of the Pr2Co14B-based rapidly quenched alloys Christodoulou, C. N.; Massalski, T. B.; Wallace, W. E. Journal of Magnetism and Magnetic Materials, Vol. 125, Issue 1-2 https://doi.org/10.1016/0304-8853(93)90835-P	journal	July 1993
Magnetic properties of R<inf>2</inf>Co<inf>14</inf>B (R = rare earth) Shimao, M.; Ido, H.; Kido, G. IEEE Transactions on Magnetics, Vol. 23, Issue 5 https://doi.org/10.1109/TMAG.1987.1065236	journal	September 1987
Magnetic and Microstructural Characteristics of a DyF$_{3}$ Dip-Coated Nd-Fe-B Sintered Magnet Bae, Kyoung-Hoon; Kim, Tae-Hoon; Lee, Seong-Rae IEEE Transactions on Magnetics, Vol. 49, Issue 7 https://doi.org/10.1109/TMAG.2013.2247574	journal	July 2013
Hard magnetic properties of Nd‐Co‐B materials Fuerst, C. D.; Herbst, J. F. Journal of Applied Physics, Vol. 64, Issue 3 https://doi.org/10.1063/1.341855	journal	August 1988
Magnetic hardening of Pr ₂ Co ₁ ₄ B Fuerst, C. D.; Herbst, J. F.; Pinkerton, F. E. Journal of Applied Physics, Vol. 64, Issue 10 https://doi.org/10.1063/1.342306	journal	November 1988
Liquidus projection surface and isothermal section at 1000 °C of the Co-Pr-B (Co-rich) ternary phase diagram* Christodoulou, C. N.; Massalski, T. B.; Wallace, W. E. Journal of Phase Equilibria, Vol. 14, Issue 1 https://doi.org/10.1007/BF02652159	journal	February 1993
Magnetic and structural investigations on substituted Pr2Co17-xTx systems (T= Fe, Mn, Cr, Cu and Al) Satyanarayana, M. V.; Fujii, H.; Wallace, W. E. Journal of Magnetism and Magnetic Materials, Vol. 40, Issue 3 https://doi.org/10.1016/0304-8853(84)90314-7	journal	January 1984
Mechanically alloyed isotropic and anisotropic Nd‐Fe‐B magnetic material Schultz, L.; Schnitzke, K.; Wecker, J. Journal of Applied Physics, Vol. 64, Issue 10 https://doi.org/10.1063/1.342399	journal	November 1988
Improved energy product in grained aligned and sintered MRE2Fe14B magnets (MRE=Y+Dy+Nd) Tang, W.; Wu, Y. Q.; Oster, N. T. Journal of Applied Physics, Vol. 107, Issue 9 https://doi.org/10.1063/1.3347786	journal	May 2010

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