Title :
Study of the space charge kinetic in Al2O3 RF ceramic windows by the thermal step method
Author :
Agnel, S. ; Toureille, A.
Author_Institution :
Lab. d´´Electrotechnique, Univ. des Sci. et Tech. du Languedoc, Montpellier, France
Abstract :
The Thermal Step Method (TSM) determines and localizes the space charge density in insulating materials. This technique, already used on disordered structure materials, such as polymers (films, plates, cables) can be applied on ordered materials such as crystals and ceramics. In this study, we give evidence of the power of the Al2O3 RF Ceramic Windows to accumulate space charges (when the sample is submitted to irradiations), and to release these charges by using the Thermally Stimulated Depolarization Currents Method. These results obtained by coupling the Thermal Step Method with the Thermally Stimulated Depolarization Currents Method show the application of this kind of measurement in ordered structure materials such as ceramics
Keywords :
alumina; ceramic insulation; dielectric depolarisation; electric breakdown; space charge; thermally stimulated currents; Al2O3; RF ceramic windows; dielectric breakdown; insulating materials; ordered structure materials; space charge kinetic; thermal step method; thermally stimulated depolarization currents method; Cables; Ceramics; Crystalline materials; Crystals; Current measurement; Insulation; Kinetic theory; Polymer films; Radio frequency; Space charge;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 1995. Annual Report., Conference on
Conference_Location :
Virginia Beach, VA
Print_ISBN :
0-7803-2931-7
DOI :
10.1109/CEIDP.1995.483774
