| 학회 |
한국재료학회 |
| 학술대회 |
2007년 봄 (05/10 ~ 05/11, 무주리조트) |
| 권호 |
13권 1호 |
| 발표분야 |
에너지 환경재료 |
| 제목 |
Effects of CeO2/Y2O3 on the Piezoelectric Properties of PSN-PMN-PZT Composition under Various Alternating Electric Fields |
| 초록 |
0.03Pb(Sb0.5Nb0.5)O3-0.03Pb(Mn1/3Nb2/3)O3-(0.94-x)PbTiO3-xPbZrO3 ceramics co-doped with CeO2/Y2O3 were synthesized by conventional bulk ceramic processing technique. Phases analysis, microstructures and piezoelectric properties were investigated as a function of CeO2/Y2O3 contents (0.04/0.01, 0.03/0.02, 0.02/0.03,0.01/0.04 wt.%). Microstructures and phases information were characterized using a scanning electron microscope (SEM) and an X-ray diffractometer (XRD). Relative dielectric constant (K33T) and coupling factor (kp) were obtained from the resonance measurement method. Both K33T and kp were shown to reach to the maximum at 0.04/0.01 wt.% . In order to evaluate the stability of resonance frequency and effective electromechanical coupling factor (Keff) as a function of CeO2/Y2O3 contents under strong electric field, the variation of resonance and anti-resonance frequency were also measured using a high voltage frequency response analyzer(FRA5096) under various alternating electric fields from 10V/mm to 80V/mm. It was shown that the effective electromechanical coupling factor was stabilized along with increasing CeO2/Y2O3 contents. |
| 저자 |
이성희, 어순철, 윤만순, 허성무, 이경선, 한관섭, 김동구, 신정민
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| 소속 |
충주대 |
| 키워드 |
PSN-PZT; PMN-PZT; co-doping; electric field; piezoelectric
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| E-Mail |
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