Thermoelectric power measurement of lithium vanadate ceramics doped with chromium oxide

Kulkarni, U N; Chavan, S H

doi:10.1016/0378-7753(94)01968-1

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2012

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“…Thermoelectric power (TEP) studies provide useful information about the nature, number and the effective mass of the charge carriers in solids [12]. The variation in TEP of doped BaTiO 3 has been studied by S Madolappa et al [13].…”

Section: Introductionmentioning

confidence: 99%

PTCR and Thermoelectric Properties of Isovalent Co-Doped BaTiO₃Nanoceramics

Madolappa

Sagar

Sharanappa

et al. 2012

Ferroelectrics Letters Section

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Positive temperature coefficient resistance (PTCR) materials of Gd and Cr co-dopedBaTiO 3 ceramics were prepared by well known solid state reaction method. Temperature dependent electrical studies were performed in the temperature range from 300 K to 673 K. Curie temperature of the samples are around 345 K to 385 K. Resistivity was maximum at low temperature and decreases as the temperature increases confirming the semiconducting behavior and PTCR property of the synthesized nano-sized compounds. Thermoelectric properties demonstrated n-type semiconductor characteristics from room temperature to 673 K.

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Section: Introductionmentioning

confidence: 99%