표제지
목차
국문요약 9
Abstract 10
제1장 서론 11
제2장 이론적 배경 13
2.1. 유전체의 에너지 저장 특성 13
2.2. Pb(Zr0.52Ti0.48)O3[이미지참조] 16
2.3. SiO₂-Al₂O₃-Y₂O₃ glass 16
2.4. 상온분말 분사법 (Aerosol Deposition) 20
제3장 실험 방법 22
3.1. PZT 및 SAY 분말 제조 22
3.2. PZT-xSAY 혼합 분말 열처리 24
3.3. PZT-xSAY 혼합 AD막 제조 26
3.4. PZT-xSAY 혼합 분말 및 후막 특성 평가 29
제4장 결과 및 고찰 30
4.1. PZT-xSAY 혼합 분말 및 후막 상 분석 30
4.2. PZT-xSAY 후막의 미세구조 33
4.3. PZT-xSAY 후막의 이력 곡선 36
4.4. PZT-xSAY 후막의 에너지 저장 특성 39
제5장 결론 42
참고문헌 43
Table 1. The mixing ratio(vol%) of PZT-xSAY powder. 23
Table 2. Experimental conditions for PZT-xSAY deposition. 27
Table 3. Dielectric and energy storage properties of PZT-xSAY AD films. 40
Figure 1. Dielectric polarization. 15
Figure 2. Schematic of PZT perovskite(ABO₃) structure. 17
Figure 3. Energy storage in dielectrics. 18
Figure 4. SEM images of the polished surface of the composites (100-x)BT-xBBP. (a) 0 wt%, (b) 2.5 wt%, (c) 5 wt% 19
Figure 5. Schematic of aerosol deposition. 21
Figure 6. Schematic diagram of experimental procedure. 25
Figure 7. Aerosol deposition of PZT-xSAY. 28
Figure 8. XRD patterns of the PZT-xSAY heat treated powder. 31
Figure 9. XRD patterns of the PZT-xSAY AD films. 32
Figure 10. SEM images for the PZT-xSAY AD film. (a) PZT-0SAY, (b) PZT-5SAY and (c) PZT-10SAY 34
Figure 11. Viscosity-temperature curve of SAY glass by HSM and DSC. 35
Figure 12. PE hysteresis loops for the PZT-xSAY AD films. (a) PZT-0SAY, (b) PZT-5SAY and (c) PZT-10SAY 37
Figure 13. Max and remanent polarization for the PZT-xSAY AD films. 38
Figure 14. Energy density and energy storage efficiency of PZT-xSAY AD films. 41