作者： W. R. Buessem , P. A. Marshall
DOI:
关键词: Electrical resistance and conductance 、 Direct current 、 Composite material 、 Electrical resistivity and conductivity 、 Cathode 、 Inorganic chemistry 、 Space charge 、 Anode 、 Electrode 、 Ceramic capacitor 、 Materials science
摘要: Abstract : Gradual changes in experimental and commercial Ti02 BaTi03 bodies upon application of DC-stresses at high temperatures were observed measured during after the test. The resistivity are sometimes accompanied by capacity, loss factor color. current producing these has features an absorption current: it can be partly recovered; discharge over very long periods time. Investigation effect electrode material on all occurring reveals that only anode influence sign rate change. Humidity a detrimental some dielectrics. Treatment humid atmosphere 1000C stores protons form material; become activated life test produce rapid degradation. After removal from DC test, produced stress disappear sample might recover completely, if degradation damage not been too severe. There also chemical means to prevent entering migration two mobile defects. (Author)