Influence of sintering schedule on the electrical properties of Mn（NO3）2-doped Ba0.92Ca0.08TiO3 PTCR ceramics-中国期刊网

摘要 TherelationshipofelectricalpropertiesofMn-dopedBa0.92Ca0.08TiO3PTCR(positivetemperaturecoefficientresistance)ceramicswithtwosinteringscheduleswasdiscussed.UsingTEM(transmissionelectronmicroscope)combinedwithEDS(energydispersiveX-rayspectrometer),theMnionsdistributedatgrainboundarieswereanalyzed.TheresultsshowthatthePTCReffectofMn-dopedPTCRceramicsismoredependentonthesinteringschedulethanthoseofMnfree.ThephenomenonmaybecausedbythevalencestatesvarianceofMnionssegregatedatthegrainboundaries.

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Influence of sintering schedule on the electrical properties of Mn（NO3）2-doped Ba0.92Ca0.08TiO3 PTCR ceramics

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Influence of sintering schedule on the electrical properties of Mn（NO3）2-doped Ba0.92Ca0.08TiO3 PTCR ceramics

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