Effect Of DyMn Alloy-Powder Addition On Microstructure And Magnetic Properties Of NdFeB Sintered Magnets

• Autorzy: Lee M.-W. , Dhakal D. R. , Kim T. H. , Lee S. R. , Kim H. J. , Jang T. S.

Identyfikatory

DOI

10.1515/amm-2015-0142

Warianty tytułu

PL

Wpływ dodatku proszku DyMn na mikrostrukturę i właściwości magnetyczne spiekanych magnesów NdFeB

• Języki publikacji: EN

Abstrakty

EN

Micostructural change and corresponding effect on coercivity of a NdFeB sintered magnet mixed with small amount of DyMn powder was investigated. In the sintered magnet mixed with the DyMn alloy-powder Dy-rich shell was formed at outer layer of the main grains, while Mn was mostly concentrated at Nd-rich triple junction phase (TJP), lowering melting temperature of the Nd-rich phase that eventually improved the microstructural characteristics of the gain boundary phase. The coercivity of a magnet increased more than 3.5 kOe by the mixing of the DyMn alloy-powder.

Słowa kluczowe

EN

Nd-Fe-B sintered magnets; DyMn-alloy powder; coercivity; low melting point element

PL

magnesy spiekane; proszek DyMn; koercja; elementy o niskiej temperaturze topnienia

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2015
• Tom: Vol. 60, iss. 2B
• Strony: 1407--1409
• Opis fizyczny: Bibliogr. 11 poz., rys.

Twórcy

autor

Lee M.-W.

• Dept. of Advanced Material Engineering, Sunmoon University, Asan, Chungnam 336-708, Korea

autor

Dhakal D. R.

• Dept. of Advanced Material Engineering, Sunmoon University, Asan, Chungnam 336-708, Korea

autor

Kim T. H.

• Dept. of Materials Science and Engineering, Korea University, Seoul 136-713, Korea

autor

Lee S. R.

• Dept. of Materials Science and Engineering, Korea University, Seoul 136-713, Korea

autor

Kim H. J.

• R&D Center of Jahwa Electronics Co. Ltd, Cheongwon 363-922, Korea

autor

Jang T. S.

• Dept. of Advanced Material Engineering, Sunmoon University, Asan, Chungnam 336-708, Korea

Bibliografia

• [1] K. Hirota, H. Nakumara, T. Minowa, M. Honshima, IEEE Trans. Magn. 42, 2909 (2006).
• [2] M. Komuro, Y. Satsu, H. Suzuki, IEEE Tans. Magn. 46, 3831 (2010).
• [3] L. Pareti, M. Solzi, F. Bolzoni, O. Moze, R. Panizzieri, Solid State Communications 61, 761 (1987).
• [4] C. Abache, H. Oesterreicher, J. Appl, Phys. 60, 1114 (1986).
• [5] Y. C. Yang, W. J. James, X. D. Lo, H. Y. Chen, L. G. Xu, IEEE Trans. Magn. 22, 757 (1986).
• [6] K. H. J. Buschow, New permanent magnet material, J. Mater. Sci. Res. 1, 1 (1986).
• [7] O. A. Pringle, G. K. Marasinghe, G. J. Long, W.J. James, J. Appl. Phys. 64, 5580 (1988).
• [8] M. Jurczyk, W. E. Wallace, IEEE Trans. Magn. 22, 755 (1986).
• [9] T. H. Kim, S. R. Lee, S. Namkung, T. S. Jang, J. Alloys Compd. 537, 261 (2012).
• [10] S. Namkung, M. W. Lee, T. H. Lim, T. H. Kim, S. R. Lee, T. S. Jang, J. Kor. Powd. Met. Inst. 19, 4 (2012).
• [11] J.W. Kim, S. H. Kim, Y. D. Kim, J. Kor. Powd. Met. Inst. 18, 1 (2011).

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.