Premium
Dependence of the Intrinsic Conductivity Minimum of SrTiO 3 Ceramics on the Sintering Atmosphere
Author(s) -
Moos Ralf,
Härdtl Karl Heinz
Publication year - 1995
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1995.tb08707.x
Subject(s) - partial pressure , strontium titanate , sintering , ceramic , materials science , oxygen , strontium , conductivity , hydrogen , electrical resistivity and conductivity , mineralogy , acceptor , atmosphere (unit) , electroceramics , analytical chemistry (journal) , thermodynamics , chemistry , condensed matter physics , composite material , nanotechnology , thin film , physics , organic chemistry , quantum mechanics , chromatography , medicine , microfabrication , alternative medicine , pathology , fabrication
A shift of the intrinsic conductivity minimum of strontium titanate ceramics, which depends on the oxygen partial pressure of the sintering atmospheres, was observed. Different hydrogen partial pressures (at constant oxygen partial pressures) did not affect the minimum position. A comparison of the results with defect chemical calculations may explain this behavior as an oxygen partial pressure dependent formation of strontium vacancies showing acceptor character.