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| Type |
Poster Presentation |
| Area |
Physical Chemistry |
| Room No. |
Event Hall |
| Time |
4월 20일 (금요일) 11:00~12:30 |
| Code |
PHYS.P-252 |
| Subject |
Synthesis of exchange coupled magnet with soft and hard phase |
| Authors |
Yunjoo Cho, YOUNG SOO KANG1,*
chemistry, Sogang University, Korea
1Department of Chemistry, Sogang University, Korea
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| Abstract |
Permanent magnets are used in a wide variety of applications and the most significant contribution is to convert electrical energy into kinetic energy. If this conversion is worked more efficiently, we can save more electrical energy and the source for producing that energy. To increase efficiency, really powerful permanent magnet is needed. On the other hand, the use of rare earth elements should be reduced for supply stability and environment. So I want to synthesize exchange coupled magnet which meets both sides.
For the exchange coupling, soft and hard magnet should be combined. So I synthesized the FeCo nanoparticle which can be made to 15 nm or less as the soft magnet and will synthesize the Nd-Fe-B or SmCo which have high (BH)max value as hard magnet. After synthesize the hard phase, both of them will be combined.
Exchange coupled magnet, theoretically, can have (BH)max value as high as 120 MGOe. So I expect to synthesize the permanent magnet which have at least 80 MGOe as (BH)max value. |
| E-mail |
yun_tang@naver.com |
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121st General Meeting of the KCS