Research Article

Dielectric Properties of 0.95 ( P b 𝟏 − 𝟑 𝑥 / 𝟐 L a 𝑥 Z r 𝟎 . 𝟔 𝟓 T i 𝟎 . 𝟑 𝟓 O 𝟑 )-0.05 ( N i 𝟎 . 𝟖 Z n 𝟎 . 𝟐 F e 𝟐 O 𝟒 ) Composites

Table 1

Structural and dielectric parameters for 0.95 Pb1-3x/2LaxZr0.65Ti0.35O3-0.05 Ni0.8Zn0.2Fe2O4 composites.

Parameters 𝑥 = 0 0.010.020.03

Lattice constant “a” (Å) (Ferroelectric phase)4.10634.10254.10014.0988
Lattice constant “a” (Å) (Ferrite phase)8.34638.35788.35308.3534
𝑑 t h e o r e t i c a l (g/cc)7.897.857.867.84
𝑑 e x p e r i m e n t a l (g/cc)7.317.187.267.14
Relative density (%)92.6591.4692.3691.07
𝑇 𝑐 (°C)394390369362
𝜀 R T at 100 kHz625800845925
𝜀 m a x at 100 kHz107601094597108560
t a n 𝛿 R T at 100 kHz0.030.060.070.02
t a n 𝛿 m a x at 100 kHz0.150.190.120.14