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J. Korean Ceram. Soc. > Volume 32(2); 1995 > Article
Journal of the Korean Ceramic Society 1995;32(2): 234.
단결정 MgO와 분말 $Fe_2O_3$간의 고상 반응 연구
김성재, 박재우
국방과학연구소 기술연구본부
The Study on Solid-State Reaction Between MgO Single Crystal and $Fe_2O_3$ Powder
ABSTRACT
MgFe2O4 formation, grain growth in Fe2O3, Fe solid-solution limit in MgO for MgO-Fe2O3 mixture were studied by means of investigating the distribution of phases and compositions in reaction area between MgO and Fe2O3. The reaction area at equlibrium was composed with MgO-FexO matrix and MgFe2O4 precipitation, MgFe2O4 was formed by precipitating from MgO-FexO matrix dependent on oxygen partial pressure. Fe contents was exponentially decreased with diffusion distance in MgO single crystal, and thus Fe solid-solution limitation in MgO was about 4mol%. The grain growth rate in Fe2O3 base was increased with Mg contents diffused from MgO single crystal.
Key words: $MgFe_2O_4$ formation, $MgO-Fe_xO-Matrix$
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