| 다양한 전계인가율과 온도에서 강유전 세라믹의 이력선도 계측과 기준 잔류 분극 및 변형률 거동 예측 |
| 지대원, 김상주 |
| 서울시립대학교 기계정보공학과 |
| Measured Polarization Hysteresis and Predicted Reference Remnant Polarization and Strains of Ferroelectric Ceramics at Various Electric Field Loading Rates and Temperatures |
| Dae Won Ji, Sang-Joo Kim |
| Department of Mechanical and Information Engineering, University of Seoul |
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| ABSTRACT |
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A poled lead zirconate titanate (PZT) rectangular parallelepiped specimen was subjected to through-thickness electric fields at five loading rates and four temperatures. The rates of the electric field were 0.01, 0.10, 0.25, 0.50, and $1.00MVm^{-1}s^{-1}$; the temperatures were 20, 50, 80, and $110^{circ}C$. From the measured polarization hysteresis responses, the so-called reference remnant polarization and strains were calculated. Using the calculated reference remnant polarization hysteresis loops, the effects of loading rates and temperature were discussed; using the calculated reference remnant strains, strain butterfly loops were calculated and compared with observations. |
| Key words:
PZT, Hysteresis, Material moduli, Electric field loading, Temperature, Butterfly loop |
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