Record number :
Title of article :
Electrical properties of Pb2Bi3NdTi5O18 ceramic
Author/Authors :
C.K. Suman، نويسنده , , K. Prasad، نويسنده , , R.N.P. Choudhary، نويسنده ,
Issue Information :
دوهفته نامه با شماره پیاپی سال 2003
Pages :
From page :
To page :
Abstract :
Single phase orthorhombic tungsten–bronze (OTB) ceramics of Pb2Bi3NdTi5O18 (PBNT) were prepared by a high temperature solid-state reaction method. Electrical impedance, phase angle, dielectric constant and dielectric loss have been measured in the frequency range 0.1 kHz–3 MHz in the temperature region 16–250 °C. Dielectric studies show relaxor behaviour with a diffuse phase transition having diffusivity parameter value 1.85. AC impedance analyses suggested the phase element to be capacitive. The Cole–Cole plot indicated high resistance of the sample at room temperature. The activation energy (Ea=0.63 eV) has been estimated from the temperature variation of DC resistivity.
Keywords :
Phase transition , Transition temperature , X-ray diffraction , dc resistivity , Orthorhombic
Journal title :
Materials Chemistry and Physics
Serial Year :
Link To Document :