Volume 6 Issue 4 - March 2016

  • 1. Variation of dielectric properties with temperature in ( hgo – pbcro4 ) solid mixture

    Authors : Meenu Sachan

    Pages : 314 - 317

    Keywords : Dielectric, Loss factor, Mixed material, Thick binder layer

    Abstract :

    Abstract - In this work variation of dielectric properties like capacitance, conductance and Loss factor (tan δ) of ( HgO – PbCrO4) solid mixture with temperature have been studied. The solid mixture of HgO and PbCrO4 were prepared by heat treatment technique taking temperature 400 ˚C for 30 min. The best result obtained with composition (75%HgO – 25% PbCrO4). Measurements were made by thick binder layer (cell). For this cell were fabricated in the form of parallel plate capacitors. The capacitance(C) and conductance (G) were measured through an a.c bridge LCR- Q meter. The measurements have been carried out in temperature range of 309 K to 335 K. The capacitance (C), conductance (G) and loss factor (tan δ) decreases with increasing temperature. The decrease in capacitance with temperature is due to decrease in number of equilibrium carriers available for the space charge formation with increasing temperature. The decrease in conductance (G) and loss factor (tan δ) with increasing temperature may be attributed mainly to the contribution of the frequency independent dc conductivity towards the measured loss factor.

    Citing this Journal Article :

    Meenu Sachan, "Variation of dielectric properties with temperature in ( hgo – pbcro4 ) solid mixture", https://www.ijltet.org/journal_details.php?id=899&j_id=2966, Volume 6 Issue 4 - March 2016, 314 - 317, #ijltetorg