• Title/Summary/Keyword: KCC coating

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Comparison Study of Polymer and Ti Sol-Gel Carbon Coating on Ti for PEMFC Bipolar Plates (고분자전해질 연료전지용 Ti 분리판을 위한 고분자와 Ti Sol-Gel 탄소코팅의 비교 연구)

  • Won-Seog Yang;Jae-Ho Lee;Hee-Suk Roh;Ju-Hyun Yoo;Chul-Min Park;Su-Yeon Lee;Sung-Mo Moon
    • Corrosion Science and Technology
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    • v.22 no.6
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    • pp.447-456
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    • 2023
  • In this work, we performed a comparative study examining two coatings on Ti Gr.1 for use in fuel cell bipolar plates. The coatings consisted of carbon black as the conductor along with acrylic polymer and Ti Sol-Gel binder as the binder. Ti Sol-Gel that had precipitated as TiO2 in areas impregnated between carbon black gaps, thereby acting as a binder for carbon black and serving as a polymer coating. Neither of the coatings peeled off during the 90° bend test to check formability. The contact resistance of the TiO2 coating was found to be lower than that of the polymer binder coating. Moreover, due to coating shrinkage (denser) that occurred during the heat treatment process, the TiO2 binder coating showed almost the same level of corrosion resistance, as measured by potentiostatic and EIS tests, despite being thinner than the polymer coating. However, both the polymer binder coating and the TiO2 binder coating had many pores and irregularities internally (around 10 ~ 100 nm) and on the surface (0.1 ~ 2 ㎛). We considered that these pores and irregularities contributed to the lower corrosion resistance.

A Comparison of Thermal Performance of Double Low-E Glazing Window according to Various Material (더블로이유리 적용 창호의 구성요소에 따른 단열성능 비교 실험)

  • Jang, Cheol-Yong;Ahn, Byung-Lip;Kim, Chi-Hoon;Kim, Jun-Sub;Lee, Sung-Jae
    • 한국태양에너지학회:학술대회논문집
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    • 2011.04a
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    • pp.133-137
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    • 2011
  • Low-e glazing is classified as soft low-e glazing and hard low-e glazing. Hard low-e glazing can be temperable and its handling is comfortable because its coating film is a oxide film generated at high temperatures. But there is a fatal weakness that its insulation performance and shielding performance are lower compared to soft low-e glazing by low electrical conductivity of coating film. Soft low-e glazing is excellent because its coating film consists of Ag that is excellent electrical conductivity and it has strength that can supply various product consumers want. But soft low-e glazing has weaknesses that temperable and handling are difficult because Ag is oxidized easily. Therefore this study analyzes thermal performance of glazing by changing filling gas according to applying low-e glazing through simulation to judge performance before making sample. After this process, a comparative experimental study was done through TVS by making temperable low-e glazing.

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Thermal performance evaluation of Temperable Low-e glass window through Heating Energy consumption Analysis (난방에너지 사용량 분석을 통한 후강화 로이유리 창호의 단열성능 평가)

  • Jang, Cheol-Yong;Kim, Jeong-Gook;Ahn, Byung-Lip;Kim, Jun-Sup;Haan, Chan-Hoon
    • 한국태양에너지학회:학술대회논문집
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    • 2012.03a
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    • pp.200-205
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    • 2012
  • In the high oil price age, intensification of energy efficiency promotion in the building sector is required. Windows are dominating in large percent of whole building loads, and are regarding as the primary target of energy efficiency. In this study, in order to reduce heat loss of buildings, we investigate the thermal performance properties of Temperable Low-e glazing coated Ag membrane that has high electrical conductivity. The Temperable Low-e glazing windows has high insulation and shading properties, and it has strength that can supply various product which consumers want. In order to evaluate thermal performance of temperable windows, we install single low-e windows and double low-e windows in the experimental chamber and analysis the comparison heating energy consumption between single and double Low-e glazing windows. performance evaluation was conducted.

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