Study of Impedance Spectroscopy of Ferroelectric (Pb Sr)TiO₃ Glass Ceramic System with Addition of La₂O₃

Table 1

Glass and glass ceramic codes heat treatment schedules (heating rate 5°C/min), crystalline phases, crystal structure, and lattice parameters of different glass ceramic samples.

		Heat treatment schedules
Glass code	Glass ceramic code	Holding time (hrs)	Holding temp (°C)	Crystalline phases	Crystal structure	Lattice parameters a (Å)	(PbSr)TiO3 ceramic*, a (Å)
4PL7B	4PL7B850T	3.0	850	P + R	Cubic	3.926±0.004	3.927
	4PL7B850S	6.0	850	P + R	Cubic	3.910±0.001
3PL7B	3PL7B941T	3.0	941	P + R	Cubic	3.907±0.001	3.943
	3PL7B941S	6.0	941	P + R	Cubic	3.906±0.001
2PL7B	2PL7B840T	3.0	840	P + SB	Cubic	3.914±0.001	3.880
	2PL7B840S	6.0	840	P + R	Cubic	3.907±0.0002
1PL7B	1PL7B842T	3.0	842	P + SB	Cubic	3.905±0.0003	3.880
	1PL7B842S	6.0	842	P + R	Cubic	3.893±0.003
STL7B	STL7B905T	3.0	905	P + SB	Cubic	3.902±0.0003	3.904
	STL7B905S	6.0	905	P + R + SB	Cubic	3.904±0.001

*Reference [16].