| 소결에 의한 산화물촉매의 표면확산계수의 측정 |
| 문세기, 유경옥, 김형진 |
| 한양대 공대 화공과 |
| Determination of Surface Diffusivities of Oxides by the Combined Sintering |
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| ABSTRACT |
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The surface diffusion coefficients for nickel, nickel oxide, cuppric oxide, cobalt oxide, alumina and ferric oxide have been determined at various temperatures using the sintering technique. This investigation is based on the model accounting for the sum of the contribution of volume and surface diffusion to the overall shrinkage rate during the initial stage of sintering. Simultaneous measurements of shrinkages and shrinkage rates of the materials compacts were conducted for various annealing times, the results of which were then correlated to the diffusion coefficient. |
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