Journal of Powder Materials (한국분말재료학회지)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Synthesis and Characterization of Cu Nanofluid Prepared by Pulsed Wire Evaporation Method

전기선 폭발법을 이용하여 제조된 구리 나노유체의 특성평가

  • Kim, Chang-Kyu (Nuclear Materials Research Division, Korea Atomic Energy Research Institute (KAERI)) ;
  • Lee, Gyoung-Ja (Nuclear Materials Research Division, Korea Atomic Energy Research Institute (KAERI)) ;
  • Rhee, Chang-Kyu (Nuclear Materials Research Division, Korea Atomic Energy Research Institute (KAERI))
  • 김창규 (한국원자력연구원 원자력재료연구부) ;
  • 이경자 (한국원자력연구원 원자력재료연구부) ;
  • 이창규 (한국원자력연구원 원자력재료연구부)
  • Received : 2010.06.04
  • Accepted : 2010.06.23
  • Published : 2010.08.28
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Abstract

Ethylene glycol-based Cu nanofluids were prepared by pulsed wire evaporation (PWE) method. The structural properties of Cu nanoparticles were studied by X-ray diffraction (XRD) and high resolution transmission electron microscopy (HRTEM). The average diameter and Brunauer Emmett Teller (BET) surface area of Cu nanoparticles were about 100 nm and $7.46\;m^2/g$, respectively. The thermal conductivity and viscosity of copper nanofluid were measured as functions of Cu concentration and temperature. As the volume fraction of Cu nanoparticles increased, both the enhanced ratios of thermal conductivity and viscosity of Cu nanofluids increased. As the temperature increased, the enhanced ratio of thermal conductivity increased, but that ratio of viscosity decreased.

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