| 학회 |
한국재료학회 |
| 학술대회 |
2006년 봄 (05/19 ~ 05/20, 경상대학교 ) |
| 권호 |
12권 1호 |
| 발표분야 |
에너지환경재료 |
| 제목 |
Effects of CeO2 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 doped with CeO2 were synthesized by conventional bulk ceramic processing technique. Phases analysis, microstructures and piezoelectric properties were investigated as a function of CeO2 contents (0.03, 0.05, 0.1 0.3, 0.5 and 0.7mol%). Microstructures and phases information were characterized using a scanning electron microscope (SEM) and an X-ray diffractometer (XRD). Mechanical quality factor (Qm) and coupling factor(kp) were obtained from the resonance measurement method. Both Qm and kp were shown to reach to the maximum at 0.1mol% CeO2. In order to evaluate the stability of resonance frequency and effective electromechanical coupling factor (Keff) as a function of CeO2 addition 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 90V/mm. It was shown that the stability of resonance frequency and effective electromechanical coupling factor was increased by increasing the CeO2 additions. |
| 저자 |
최용길1, 윤만순2, 이승환, 권준철1, 이경선2, 허성무, 어순철3
|
| 소속 |
11Dept. of Materials Sci. and Eng., 2Research Center for Sustainable Eco-Devices and Materials (ReSEM), 32Dept. of Mechanical d Eng. |
| 키워드 |
Keywords : PSN-PZT; PMN-PZT; CeO2; electric field
|
| E-Mail |
|
