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유체내 전기선폭발에 의한 그래핀-은 나노유체 제조 및 특성
전종훈(Jong-Hoon Jeon),김지혜(Ji-Hye Kim),최부영(Bu-Young Choi),노정필(Jung-Pil Noh),허선철(Sun-Chul Huh) 대한기계학회 2017 대한기계학회 춘추학술대회 Vol.2017 No.11
A graphene-silver nanofluid was prepared by using an electric wire explosion method to coat the graphene particles with silver nanoparticles. The number of times of explosion was set as a variable and the concentration of silver nanoparticles was made different. The properties of graphene - silver nanofluid were confirmed by using thermal conductivity and TEM and SEM. As a result, it was confirmed that graphene grains were attached to silver nanoparticles, and the change in thermal conductivity was confirmed based on distilled water.
액상/기상중 전기선 폭발법을 이용한 은 나노유체의 제조 및 특성평가에 관한 연구
김창규,이경자,이창규,Kim, Chang-Kyu,Lee, Gyoung-Ja,Rhee, Chang-Kyu 한국재료학회 2009 한국재료학회지 Vol.19 No.9
The silver nanofluids were synthesized by the pulsed wire evaporation (PWE) method in a liquid-gas mixture. The size and microstructure of nanoparticles in the deionized water were investigated by a particle size analyzer (PSA), transmission electron microscope (TEM), and scanning electron microscope (SEM). Also, the synthesized nanofluids were investigated in order to assess the stability of dispersion of nanofluid by the zetapotential analyzer and dispersion stability analyzer. The results showed that the spherical silver nanoparticle formed in the deionized water and mean particle size was about 50 nm. Also, when explosion times were in the range of 20$\sim$200 times, the absolute value of zeta potential was less than -27 mV and the dispersion stability characteristic of low concentration silver nanofluid was better than the high concentration silver nanofluid by turbiscan.