• Korean Journal of Materials Research
• /
• v.9 no.8
• /
• pp.792-797
• /
• 1999

The 8mol.%Y$_2$$O_3$-$ZrO_2$mainly employed as an electrolyte of solid oxide fuel cells(SOFCs) shows excellent electrical properties but has a weakness in the mechanical properties. Since the electrolyte of SOFCs requires both good electrical and mechanical properties, this study was conducted to meet both requirements. The electrolyte thin films were produced on the LSM(cathode material) substrate of a cell and Si wafer. Four electrolyte film types of single layer and the multiple layer, consisting of 3-YSZ(3mol.%$Y_2$$O_3$) with excellent mechanical properties and 8-YSZ with the excellent electric conduction, were produced by electron beam coating technology. Ther crystal structure and the mechanical properties were also analysed. As the results of the study, the 3-YSZ thin film turned out to be in the tetragonal, partially monoclinic phase, while the 8-YSZ thin film showed the cubic phase. The residual stress in the multiple layer was lower than that of the single layer. The microhardness of the multiple layer was similar to that of the existing 8-YSZ single layer both before and after annealing treatment.

• Proceedings of the Korean Magnestics Society Conference
• /
• 2003.12a
• /
• pp.173-173
• /
• 2003

• Bulletin of the Korean Chemical Society
• /
• v.31 no.5
• /
• pp.1389-1392
• /
• 2010

• Proceedings of the Korean Society of Dyers and Finishers Conference
• /
• 2011.03a
• /
• pp.44-44
• /
• 2011

• Proceedings of the KIEE Conference
• /
• 2009.07a
• /
• pp.1332_1333
• /
• 2009

The electrical properties of an inorganic/organic heterojunction has been investigated by spin coating the p-type polymer poly(3,4 ethylenedioxythiophene) : poly(styrenesulfonate) (PEDOT:PSS) on an n-type gallium doping zinc oxide (GZO) film. Current-voltage (I-V) characteristics of the fabricated heterojunction diodes have a good rectifying characteristics. The barrier height is calculated 0.8 eV.

• Korean Journal of Crystallography
• /
• v.10 no.1
• /
• pp.9-12
• /
• 1999

TiO2로 수열코팅하여 표면 개질한 흑연의 미세구조 및 전기적 특성에 관하여 연구하였다. 수열합성에 의해 코팅된 TiO2는 rutile 상이였고, 흑연의 소결정을 증대하였다. 온도에 따라 흑연의 소결성 및 밀도는 증가하였고, 코팅된 TiO2에 의한 흑연의 산화로 저항은 증가하였고 1100℃ 이상에서는 포화되었다.

• Textile Coloration and Finishing
• /
• v.7 no.1
• /
• pp.23-31
• /
• 1995

Changes of the properties of waterproof and moisture-permeable nylon fabric were investigated when softener, anti-static agents, anti-biosis agents were added to the polyurethane resin solution, and when they were applied after resin coating. The adding method of finishing agents into polyurethane layer resulted in an increase in water permeability but a severe decrease in peeling strength. It was found that the desired functionality such as softness, anti-staticity, anti-biosis were successfully introduced into waterproof and moisture-permeable nylon fabric by after-treatment of finishing agents.

• Proceedings of the Korea Society for Energy Engineering kosee Conference
• /
• 2006.05a
• /
• pp.350-356
• /
• 2006

• Proceedings of the Korea Technical Association of the Pulp and Paper Industry Conference
• /
• 2006.11a
• /
• pp.223-223
• /
• 2006

• Proceedings of the Korean Institute of Surface Engineering Conference
• /
• 2015.11a
• /
• pp.255-255
• /
• 2015

나노압침방법을 적용하여 arc ion plating을 통해 제조된 TiAlSiN 코팅층의 질소 함량에 따른 나노 기계적 특성을 평가하였다. 코팅층의 질소 함량은 28~30 [at.%] 이었다. 코팅층에는 AlN, TiSi, $Al_5Ti_3$, $Ti_3AlN$, $Al_5Ti_2$ 상이 형성되었다. 질소 함량이 더 작은 코팅층의 나노경도, 마찰계수, 피로한계의 값이 높아짐을 알 수 있었다.