Ragab, HSAbd Ellah, RAAbo Ellil, MSShehab, A.Basha, AFAbd El-Kader, FH2019-11-282019-11-282001Cited References in Web of Science Core Collection: 370022-2461https://doi.org/10.1023/A:1017919827872https://ceramics.onlinelibrary.wiley.com/doi/full/10.1111/jace.16162Accession Number: WOS:000170554900029Thermally stimulated depolarization currents (TSDC) in unirradiated and gamma -irradiated press prepared beta -spodumene solid solution ceramic have been investigated within the wide temperature range 20-160 degreesC. Doses in the range 10-10(5) Gy were used. The TSDC spectrum at relatively high polarizing fields shows two relaxation peaks whose positions and intensities depend on the polarization conditions and gamma -doses. Discussion of data is given on the basis that dipolar and space-charge polarization coexist in the used ceramic material. Activation energies for space-charge peak are determined from the initial rise of thermal current peak under different gamma -doses. Aging effect clearify that the longer the aging time, the smaller the polarization. Pyroelectric current data provide further support to space charge effects. (C) 2001 Kluwer Academic Publishers.enUniversity of FERROELECTRIC CERAMICSELECTRICAL-PROPERTIESDISCHARGE CURRENTSCORKArticlehttps://doi.org/10.1023/A:1017919827872