Title :
Dielectric response in natural clinoptilolite
Author :
Delgado, Adolfo ; Ruiz Salvador, A.R. ; Rodriguez Fuentes, G. ; Berazain Iturralde, A.
Author_Institution :
Centre of Biomater., Havana Univ., Cuba
Abstract :
Several samples of cation forms of the natural clinoptilolite from Tasajeras deposit were studied using dielectric spectrometry. The behaviour of the response was analyzed for different water contents and, for the calcium and sodium forms, it was investigated for several temperatures too. The results show the influence of cation nature and water content in the shape and magnitude of the dielectric response. Two relaxation domains appear in the frequency range from 34 Hz to 500 kHz which were studied following the formalism of the universal dielectric response in solids. The existence of correlated motions between water-induced species and cations is discussed
Keywords :
dielectric relaxation; moisture; positive ions; 34 Hz to 500 kHz; Tasajeras deposit; calcium form; cation nature; correlated motions; dielectric response; dielectric spectrometry; natural clinoptilolite; relaxation domains; sodium form; universal dielectric response; water content; water-induced species; zeolite; Calcium; Dielectric measurements; Electrochemical impedance spectroscopy; Electrodes; Frequency; Permittivity measurement; Powders; Shape; Temperature distribution; Temperature measurement;
Conference_Titel :
Electrical Insulation, 1996., Conference Record of the 1996 IEEE International Symposium on
Conference_Location :
Montreal, Que.
Print_ISBN :
0-7803-3531-7
DOI :
10.1109/ELINSL.1996.549479
