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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2018.6
- 수록면
- 280 - 284 (5page)
- DOI
- 10.4283/JMAG.2018.23.2.280
이용수
초록· 키워드
오류제보하기
In this paper, we fabricated novel magnetostrictive composites by embedding <110>-oriented Tb-Dy-Ho-Fe fibers in an epoxy matrix. The magnetostrictive and magnetic properties (magnetostriction, magnetization, piezomagnetic coefficient and relative permeability) of the proposed composites were measured, analyzed, and compared to those of Tb<SUB>0.29</SUB>Dy<SUB>0.48</SUB>Ho<SUB>0.23</SUB>Fe<SUB>1.9</SUB> alloy and Tb<SUB>0.3</SUB>Dy<SUB>0.7</SUB>Fe₂ continuous-fiber/epoxy composites. Tb<SUB>0.29</SUB>Dy<SUB>0.48</SUB>Ho<SUB>0.23</SUB>Fe<SUB>1.9</SUB> continuous-fiber/epoxy composites have a saturation magnetostriction (λ<SUB>s</SUB>) of 840 ppm and saturation magnetization (M<SUB>s</SUB>) of 0.75 T. Their piezomagnetic coefficient exhibits a maximum value (8.2 μm/kA) at 19 kA/m. These proposed composites exhibit a large magnetostriction in high magnetic fields (> 400 kA/m) and a large relative permeability in low magnetic fields (< 100 kA/m). This result indicates that the given composites perform better than the Tb<SUB>0.29</SUB>Dy<SUB>0.48</SUB>Ho<SUB>0.23</SUB>Fe<SUB>1.9</SUB> alloy and Tb<SUB>0.3</SUB>Dy<SUB>0.7</SUB>Fe₂ fiber/epoxy composites. Thus, the composites with characteristics of high sensitivity and large magnetostriction can be used in the field of ultrasonic sensing.
목차
1. Introduction
2. Experiments
3. Results and Discussion
4. Conclusion
References
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