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Korean Journal of Metals and Materials > Volume 55(5); 2017 > Article
Korean Journal of Metals and Materials 2017;55(5): 315-319. doi: https://doi.org/10.3365/KJMM.2017.55.5.315
화학반응법을 이용한 Cu-coated 복합분체 합성
장준호1,2, 박현국1, 임재원2, 오익현1
1한국생산기술연구원 동력부품소재그룹
2전북대학교 금속공학과
Synthesis of Cu-coated Graphite Powders Using a Chemical Reaction Process
Jun-Ho Jang1,2, Hyun-Kuk Park1, Jae-Won Lim2, Ik-Hyun Oh1
1Korea Institute of Industrial Technology (KITECH), Gwangju 61012, Republic of Korea
2Division of Advanced Materials Engineering, Chonbuk National University, Jeonju 54896, Republic of Korea
Correspondence  Ik-Hyun Oh ,Tel: +82-62-600-6180, Email: ihoh@kitech.re.kr
Received: 1 August 2016;  Accepted: 13 November 2016.  Published online: 9 May 2017.
ABSTRACT
In this paper, Cu-coated graphite powders for a low thermal expansion coefficient and a high thermal conductivity are fabricated using a chemical reaction process. The Cu particles adhere to the irregular graphite powders and they homogeneously disperse in the graphite matrix. Cu-coated graphite powders are coarser at approximately 3~4 ㎛ than the initial graphite powders; furthermore, their XRD patterns exhibit a low intensity in the oxide peak with low Zn powder content. For the passivation powders, the transposition solvent content has low values, and the XRD pattern of the oxide peaks is almost non-existent, but the high transposition solvent content does not exhibit a difference to the non-passivation treated powders.
Keywords: Cu coating, Cu-coated graphite, chemical reaction process, microstructures
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