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Well-sintered  barium zirconate ceramic bodies have been prepared and identified. Extensive measurements have  been  made  on  these  specimens, including X-ray  diffraction,  and  DC- electrical  conductivity as  a  function of temperature before and  after exposure to  a  gamma- radiation  dose  and  after  various  periods  (radiation  decay  time)  following  removal  of  the specimens, from  the  radiation  field.  The  resistivity vs.  temperature curve  showed an  abrupt change at around 60  ~ in the reverse  direction,  indicative  of  a probable transition from an n- to a
p-type  semiconduction  mechanism.  Finally,  all  the  results  are  discussed  in  detail  and correlated on  the  basis  of  the  interactions  of  temperature,  ionizing  radiation  damage  and radiation annihilation with the barium zirconate lattice.
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