| 학회 |
한국재료학회 |
| 학술대회 |
2014년 가을 (11/27 ~ 11/28, 대전컨벤션센터) |
| 권호 |
20권 2호 |
| 발표분야 |
C. 에너지/환경 재료(Energy and Environmental Materials) |
| 제목 |
Preparation of ZrO2 films on etch tunnels of anode Al foil by sol-gel method |
| 초록 |
It is well known that the capacitance can be increased by increasing the relative dielectric constant and effective surface area. Although the surface area is enlarged greatly by the electrochemical etching of Al foil, the development of high-capacitance capacitors is very difficult because the enlargement of the surface area by the etching process is faced with a limit. In order to obtain the high capacitance in Al electrolytic capacitor, ZrO2 films were coated on anode aluminum foils by sol-gel method and then, the properties of ZrO2 films were studied. The coating and drying of the films were repeated 4-10 times and annealed at 300~550°C. The structure and composition of samples were analyzed by SEM, EDS and XRD and electrical properties such as capacitance, leakage current and breakdown voltage were measured by impedance analyzer and pA meter. The aluminum foils with ZrO2 layer are found to be applicable to the high capacitance Al electrolytic capacitor. |
| 저자 |
Fei Chen, 박상식
|
| 소속 |
경북대 |
| 키워드 |
ZrO2 films; Sol-gel; Anode Al foil; Electrolytic capacitor
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| E-Mail |
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