| 알콜탈수법에 의해 제조된 Mn-Zn Ferrite 분체의 주입성형 |
| 이경직, 이대희, 신효순, 이석기1, 김창현2, 이병교 |
경북대학교 무기재료공학과
1경북대학교 고분자공학과
2가야대학교 공학부 |
| Slip Casting of Mn-Zn Ferrite Powders Prepared by Alcoholic Dehydration Method |
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| ABSTRACT |
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Mn-Zn ferrite powders were prepared by alcoholic dehydration, using coprecipitation method. Then the effects of organic dispersant and polymeric binder concentration on stability and casting of slurry were discussed. Citric acid, the organic dispersant and polyvinylacohol(PVA), the non-ionic binder, were selected as additives of slurry. With variation of concentration of water, citric acid and polyvinylalcohol(PVA), optimum forming conditions were determined from viscosity and density. To compare with dry process, density and microstructure of sintered body formed by uniaxial die pressing were observed. |
| Key words:
Alcoholic dehydration, Slip casting, Mn-Zn Ferrite, PVA, Citric acid |
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