| 자전연소합성법에 의한 FeB 분말의 제조 |
| 신창윤, 원창환 |
| 충남대학교 급속응고신소재연구소 |
| Preparation of FeB by SHS (Self Propagating High Temperature Synthesis) |
| Chang-Yun Shin, Chang-Whan Won |
| Engineering Research Center for Rapidly Solidified Materials, Chungnam National University |
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| ABSTRACT |
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The preparation of FeB by SHS in $B_2O_3-Mg-Fe-Fe_3O_4$ system was investigated in this study. In the preparation of FeB, the effects of the initial pressure of inert gas in reactor, the content of Mg and $Fe_3O_4$ in mixture on the reactivity and reaction products was investigated. The minimum initial pressure of inert gas in reactor for SHS reaction in this system was 25 atm, and as the pressure increased, the concentration of unreacted Mg decreased and combustion temperature increased. At the initial inert gas pressure in reactor of 25 atm, the optimum composition for the preparation of pure FeB was $1.5B_2O_3$+3.43Mg+ 1.7Fe+$0.1Fe_3O_4$. The FeB synthesized in this condition had an irregular shape and the particle size of $5;{mu}m$. |
| Key words:
SHS, Initial pressure, Unreacted Mg, Composition |
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