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J. Korean Ceram. Soc. > Volume 33(11); 1996 > Article
Journal of the Korean Ceramic Society 1996;33(11): 1285.
연소합성법에 의한 Plasma-arc Deposit 용 $Cr_3C_2$ 합성 및 특성에 관한 연구
장윤식, 윤정아, 이윤복, 박성수, 김인술1, 박흥채, 오기동
부산대학교 무기재료공학과
Synthesis and Characterization of $Cr_3C_2$ for Plasma-arc Deposit by Combustion Synthesis Process
Using Cr2O3 Al and graphite powders as starting materials Cr3C2 was synthesized by combustion synthesis process according to the following reaction : 3Cr3C2 +4C+6Allongrightarrow2Cr3C2 +3Al2O3. The synthesis was conducted at 2 atm in an argon atmosphere. in this study main-product was monolithic phase of Cr3C2 /Cr7C3 mixture and sub-product was slag state of $alpha$-Al2O3. Single phase of Cr3C2 was obtained when crushed main-product was heat-treated at 120$0^{circ}C$ for 3h in vacuum state with addition of 2.5wt% C. The obtained Cr3C2 powder can be used as plasma-arc deposit material because the flowability index of powder with the size of 9-50${mu}{textrm}{m}$ was 66.
Key words: $Cr_3C_2$, Combustion synthesis process
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