For diamond/metal composites it is better to use diamond particles coated with metal carbide because of improved wettability between the diamond particles and the matrix. In this study, the coating of diamond particles with a chromium carbide layer is investigated. On heating diamond and chromium powders at 800~900 oC in molten salts of LiCl, KCl, CaCl2, the diamond particles are coated with Cr7C3. The surfaces of the diamond powders are analyzed using X-ray diffraction and scanning electron microscopy. The average thickness of the Cr7C3 coating layers is calculated from the result of the particle size analysis. By using the molten salt method, the Cr7C3 coating layer is uniformly formed on the diamond particles at a relatively low temperature at which the graphitization of the diamond particles is avoided. Treatment temperatures are lower than those in the previously proposed methods. The coated layer is thickened with an increase in heating temperature up to 900 oC. The coating reaction of the diamond particles with chromium carbide is much more rapid in LiCl-KCl-CaCl2 molten salts than with the molten salts of KCl-CaCl2.

Abstract
 1. 서 론
 2. 실험 방법
 3. 결과 및 고찰
 4. 결 론
 References

• 정영우(부경대학교 과학기술융합전문대학원 LED융합공학전공) | Young-Woo Jeong (Department of LED Convergence Engineering, Specialized Graduate School Science & Technology Convergence, Pukyong National University)
• 김화정(부경대학교 LED공학협동과정) | Hwa-Jung Kim (Interdisciplinary program of LED and Solid State Lighting Engineering, Pukyoung National University)
• 안용식(부경대학교 재료공학과) | Yong-Sik Ahn (Department. of Materials Science and Engineering, Pukyong National University)
• 최희락(부경대학교 재료공학과) | Hee-Lack Choi (Department. of Materials Science and Engineering, Pukyong National University) Corresponding author