Fully dense bulk nanocornposites of (Sm1-xGdx) 2(Co1-vFev)17+(Co, Fe) with high coercivity and high curie temperature

IEEE Transactions on Magnetics

Volumn 40, Issue 4 II, 2004, Pages 2937-2939

  Chen, Christina H ^a   Lee, Don ^a   Liu, Sam ^a   Walmer, Michael H ^b   Zhang, Yong ^c   Hadjipanayis, George C ^c  

^a UNIVERSITY OF DAYTON   (United States)

^b Electron Energy Corp   (United States)

^c UNIVERSITY OF DELAWARE   (United States)

Author keywords

Curie temperature; Full density; Nanoeomposites magnets; Sm Co rare earth magnets; Temperature coefficient

Indexed keywords

AMORPHOUS MATERIALS; COBALT; COERCIVE FORCE; GADOLINIUM; IRON; MAGNETIZATION; MAGNETOMETERS; MECHANICAL ALLOYING; PERMANENT MAGNETS; POWDERS; SAMARIUM COMPOUNDS; TRANSMISSION ELECTRON MICROSCOPY; X RAY DIFFRACTION;

CURIE TEMPERATURE; FULL DENSITY; NANOCOMPOSITE MAGNETS; SM-CO RARE EARTH MAGNETS; TEMPERATURE COEFFICIENT;

NANOSTRUCTURED MATERIALS;

EID: 4444307307     PISSN: 00189464     EISSN: None     Source Type: Journal    
DOI: 10.1109/TMAG.2004.830398     Document Type: Article

References (15)

1. A. E. Ray and K. J. Strnat, "Easy directions of magnetization in ternary," IEEE Trans. Magn., vol. MAG-8, p. 516, 1972.
2. A. J. Perry and A. Menth, "Permanent magnets based on Sm(Co, Cu, Fe)z," IEEE Trans. Magn., vol. MAG-11, p. 1423, 1975.
3. Y. Tawara and K. Strnat, "Rare earth cobalt permanent magnets near the 2:17 composition," IEEE Trans. Magn., vol. MAG-12, p. 954, 1976.
4. T. Ojima, S. Tomizawa, T. Yoneyama, and T. Hori, "Magnetic properties of a new type of rare earth magnets Sm2(Co,Cu,Fe,M)17," IEEE Trans. Magn., vol. MAG-13, p. 1317, 1977.
5. J. Fidler, P. Skalicky, and F. Rothwarf, "High resolution electron microscope study of Sm(Co,Fe,Cu,Zr) magnets," IEEE Trans. Magn., vol. MAG-19, p. 2041, 1983.
6. A. E. Ray, W. Soffa, J. Blachere, and B. Zhang, "Cellular microstructure development in Sm(Co,Fe,Cu,Zr)8.35 alloys," IEEE Trans. Magn., vol. MAG-23, p. 2711, 1987.
7. G. C. Hadjipanayis, W. Tang, Y. Zhang, S. T. Chui, J. F. Liu, C. Chen, and H. Kronmueller, "High temperature 2:17 magnets: relationship of magnetic properties to microstructure and processing," IEEE Trans. Magn., vol. 36, p. 3382, Sept. 2000.
8. A. E. Ray, "A revised model for the metallurgical behavior of 2:17 type permanent magnet alloys," J. Appl. Phys., vol. 67, no. 9, p. 4972, 1990.
9. z and SmCo5 sintered magnets at 450°C," IEEE Trans. Magn., vol. 32, p. 4377, 1996.
10. C. H. Chen, M. S. Walmer, M. H. Walmer, S. Liu, G. E. Kuhl, and G. Simon, "Sm2(Co,Fe,Cu,Zr)17 magnets for use at temperature 400°C," J. Appl. Phys., vol. 83, p. 6706, 1998.
11. M.S.Walmer, C.H.Chen, M.H.Walmer, S.Liu, and G.E.Kuhl,"A new class of Sm2TM17 magnets with operating temperature up to 550°C," IEEE Trans. Magn., vol. 36, p. 3376, Sept. 2000.
12. C. Chen, S. Kodat, M. H. Walmer, S.-F. Cheng, M. A. Willard, and V. G. Harris, "The effects of grain size and morphology on the coercivity of Sm2(Co1-xFex) 17 based powders and spin cast ribbons," J. Appl. Phys., vol. 93, no. 10, p. 7966, 2003.
13. S. K. Chen, J. L. Tsai, and T. S. Chin, "Nanocomposite Sm2Co17/Co permanent magnets by mechanical alloying," J. Appl Phys., vol. 79, p. 5964, 1996.
14. B. Z. Cui, M. Q. Huang, and S. Liu, "Magnetic properties of (Nd,Pr,Dy)2Fe14B/a-Fe nanocomposite magnets crystallized in a magnetic field," IEEE Trans. Magn., vol. 39, p. 2866, Sept. 2003.
15. D. Lee, J. S. Hilton, S. Liu, Y. Zhang, G. C. Hadjipanayis, and C. H. Chen, "Hot pressed and hot deformed nanocomposite (Nd,Pr,Dy)2Fe14B/a-Fe based magnets," IEEE Trans. Magn., vol. 39, p. 2947, Sept. 2003.