Investigation of Electrical Modulus Behavior in LiNi3/5Fe2/5VO4 Ceramics

Moti Ram

Abstract: The ceramics (LiNi3/5Fe2/5VO4) was prepared by solution-based chemical method and it has an orthorhombic unit cell structure with lattice parameters a = 3.78, b = 15.82 and c = 5.56. Complex electrical modulus result shows single-phase character of the material in good agreement with the observations made from X-ray diffraction, and non-Debye type (polydispersive) conductivity relaxation in the ceramics. The value of activation energy was determined from the Arrhenius plot of relaxation time vs.103/Temperature as ~ (0.157 0.003) eV at 21-100 C.

Keywords: Ceramics, Chemical preparation, Complex electrical modulus, Conductivity relaxation, Relaxation time