A study of ceramic-suspension solidification using complex-impedance spectroscopy

The degree of setting of an aqueous ceramic suspension was followed by complex impedance spectroscopy. Samples were measured in specially designed measuring cells at temperatures of 20 and 27°C. At each temperature the complex impedance of the suspensions in the frequency range between 0.1 Hz and 10 MHz was acquired at regular time intervals. During the solidification process the value of the impedance increased by more than an order of magnitude. The results have confirmed that the method is a useful tool for the study of the process of forming green ceramics bodies from aqueous suspensions.