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- 용액 플라즈마 공정을 이용하여 제조된 금 나노유체의 특성평가
- 허용강, 이상율
- Synthesis and Characterization of Glold Nanofluid Prepared by the Solution Plasma Processing
- Yong-Kang Heo, Sang-Yul Lee
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Journal of Korean Powder Metallurgy Institute 2010;17(4):342-346
DOI: https://doi.org/10.4150/KPMI.2010.17.4.342
2한국항공대학교 항공재료공학과
1Nano Materials Processing Laboratory Department of Material Engineering, Korea Aerospace University
2Nano Materials Processing Laboratory Department of Material Engineering, Korea Aerospace University
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Abstract
In the present work, water-based gold nanofluids were synthesized by the solution plasma processing (SPP). The size distribution and the shape of gold nanoparticles in the nanofluids were investigated using high resolution transmission electron microscopy (HR-TEM). The dispersion stability of gold nanofluids was characterized using zeta potential, as well. The thermal properties of gold nanofluids were measured by utilizing lambda measurement device. Nanofluids containing nanoparticles with 64.0pm42.1;nmsim18.10pm5.0;nm in diameter were successfully synthesized. As diameter of nanoparticles decreased, dispersion stability of nanofluids increased and the enhanced ratio of thermal conductivity increased. The nanofluid with nanoparticles of 18.10;pm;5.0;nm in diameter showed approximately 3% improvement in thermal conductivity measurement and this could be due to the enhanced Brownian movement.
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