Ceramics-Silikáty 28, (4) 311 - 316 (1984)

To describe the transfer of water in a ceramic mix it is necessary to know the barodiffusion coefficient and its temperature dependence. The latter can be determined experimentally by the method based on driving water by suction through a layer of granular material. A simpler but less precise determination consists of an estimate based on the knowledge of the tempera­ture dependence of the viscosity of water.