Wicking Technique for Determination of Pore Size in Ceramic Materials
作者： Zhaohui Li , Ross F. Giese , Carel J. Oss , Helen M. Kerch , Harold E. Burdette
DOI: 10.1111/J.1151-2916.1994.TB07125.X
关键词:
摘要: A technique is described for the measurement of mean pore size in ceramics by wicking. Pore derived from measured rates capillary rise several apolar, low-energy liquids known surface tension through thin slices porous materials, via Washburn equation. The use assures that contact angle θ=0° (and cos θ= 1) so radius, R, only unknown Fore-size data are presented two colloidal gel compositions with engineered pore-size distributions. diameters obtained wicking found to be smaller than those afforded merciury porosimetry a factor ∼2.
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