| 학회 |
한국재료학회 |
| 학술대회 |
2017년 봄 (05/17 ~ 05/19, 목포 현대호텔) |
| 권호 |
23권 1호 |
| 발표분야 |
E. 환경/센서 재료 분과 |
| 제목 |
A study on poling effects of flexible lead-free piezoelectric nanofiber for structure health monitoring sensor |
| 초록 |
For the fabrication of flexible lead-free piezoelectric nanofiber sensor, piezoelectric ceramic powder 0.78Bi0.5Na0.5TiO3-0.22SrTiO3(BNT-ST) and vinylidenefluoride-co- trifluoroethylene(PVDF) polymer dispersed in DMF (dimethylformamide) and acetone solution were electrospun. The XRD, FE-SEM EDS mapping and polarization-electric field (P-E) loops results support that BNT-ST content of 60 wt% had better characteristics and piezoelectric properties. The poling effects of lead-free piezoelectric nanofiber were investigated by XRD and temperature-dependence dielectric properties. The structural health monitoring sensor characteristics of the poled and unpoled lead-free piezoelectric nanofiber sensor modules were investigated by simulating several situations, and the poling process contributed greatly to the improvement of the sensing performance. |
| 저자 |
지상현1, 조정호2, 백종후1, 윤존도1, 윤지선2
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| 소속 |
1한국세라믹기술원, 2경남대 |
| 키워드 |
electsropinning; nanofiber; lead-free piezoelectric; structure health monitoring sensor
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| E-Mail |
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