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

Figure 3

Scanning electron micrographs of polished and chemically etched surfaces of glass ceramic samples: (a) 4PL7B850S, (b) 3PL7B941T, (c) 3PL7B941S, and (d) 2PL7B840T.

(a)

(b)

(c)

(d)