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Journal of the Korean Ceramic Society 1995;32(8): 922. |
알콜 탈수법에 의한 Mn-Zn Ferrite의 분체합성 |
이대희, 신효순, 이병교 |
경북대학교 무기재료공학과 |
Synthesis of Mn-Zn Ferrite by Alcoholic Dehydration |
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ABSTRACT |
The effects of citrate/formate solution concentration and calcining temperature on Mn-Zn ferrite powder characteristics in the alcoholic dehydraton method were investigated. In the whole solution concentrations, agglomerates of fine particles (<0.3 ${mu}{textrm}{m}$) were obtained after calcining at 90$0^{circ}C$. Both primary particle size and the compositional shift of calcined powders decreased with increasing citrate/formate solution concentration. Reaction sequence of the precipitates prepared with 0.4M citrate/formate solution conjectured, (ZnFe2O4+$alpha$-Fe2O3)$600^{circ}C$longrightarrow((Mn, Zn)Fe2O4+$alpha$-Fe2O3)80$0^{circ}C$longrightarrow((Mn, Zn)Fe2O4)120$0^{circ}C$ |
Key words:
Alcoholic dehydration, Co-precipitation, Agglomeration, Reaction sequence |
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