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| 30 MGs.Oe Sm-Co PERMANENT MAGNETS PREPARED BY LIQUID PHASE SINTERING |
| by Xiao Wentao; Zhu Jinghan and Sun Tianduo (Central Iron and Steel Research Institute; Ministry of Metallurgical Industry) |
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Cite this article:
by Xiao Wentao; Zhu Jinghan and Sun Tianduo (Central Iron and Steel Research Institute; Ministry of Metallurgical Industry). 30 MGs.Oe Sm-Co PERMANENT MAGNETS PREPARED BY LIQUID PHASE SINTERING. Acta Metall Sin, 1981, 17(4): 424-432.
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Abstract A study was made of the optimum composition of 2-17 type Sm(Co, Cu, Fe,Zr)_z magnets. It shows that Sm content is about 27 wt%, instead of 25.5 wt% reported by Ojima. It is shown that the liguid phase sintering process, quite other than a simple solid phase sintering, is favourable to control and to adjust exactly their compositions, to play fully the active role in step aging treatment, to enhance strongly the coercivity and the energy product and to prepare successfully magnets with excellent properties. The highest valuc of energy product, 30.5 MGs·Oe, has been obtained.
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Received: 18 April 1981
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[1] Ojima, T., et al., IEEE Trans. Magn. MAG-13 (1977) , 1317．
[2] Livingston, J. D., J. Appl. Phys., 46 (1975) , 5259．
[3] Mishra, R. K. and Thomas, G., Proc. Fourth Int. Workshop on Rare Earth-Cobelt Permanent Magnets and Their Appl ication., May 22-24, 1979, Hakone, Jap., p. 301．
[4] Benz, M. G. and Martin, D. L., J. Appl. Phys., 43 (1972) , 3165． |
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