| 금속 알콕사이드법에 의한 구형의 단분산 $ZrO_2$ 미립자의 제조 |
| 김병익, 민경소, 최상흘 |
| 한양대학교 무기재료공학과 |
| Preparation of Spherical Monodispersed $ZrO_2$ Fine Powders by Metal Alkoxide Method |
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| ABSTRACT |
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ZrO2 fine powders were prepared by hydrolysis, adding 0.1, 0.2, 0.3, 0.4, 0.5, 0.6mol/1H2O/ethanol to 0.1 mol/l Zr(OC3H7)4/ethanol. When hydrolized by adding 0.1mol/l Zr(OC3H7)4/ethanol to 0.1, 0.2mol/l H2O/ethanol., spherical monodispersed ZrO2 fine powders were obtained. And in this condition average sizes were about 0.5, 0.3${mu}{textrm}{m}$, respectively. The more H2O/ethanol concentration increased, the more the particle size decreased and the particles were agglomerated strongly. Prepared powders were amorphous and hydrates. The calcined powders with 43$0^{circ}C$ and 100$0^{circ}C$ were showed tetragonal and monoclinic phase, respectively. |
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