화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2018년 봄 (04/25 ~ 04/27, 창원컨벤션센터)
권호 24권 1호, p.658
발표분야 재료
제목 Synthesis of PVDF/CoFe2O4 magnetoelectric films via two-step electrospinning
초록 Ceramic-based magnetoelectric (ME) composites such as FeCo/PZT, Ni/BaTiO3 and Ni/PMN-PT/Ni have been intensively studied due to their high ME coupling effect. Even though high ME performances have been continuously reported in the bulk ceramic composites, there are serious problems such as high cost, high processing temperature and  brittle mechanical property for practical ME applications.  
In this study, we introduce polymer-based ME composites consisting of polyvinylidene fluoride (PVDF) as a piezoelectric matrix and CoFe2O4 (CFO) nanoparticles as a magnetostrictive fillers. In particular, the ME composites were synthesized by two-step electrospinning to obtain beta phase crystalline for high piezoelectric property and to form dense composite structures minimizing pores for low current leakage. This study can be a good reference for flexible ME sensors and energy harvesters. This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2016R1C1B1010884).
저자 장선민, 양수철
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