Table 1.

The parallel capacitance, parallel resistance, and AC conductivity for the samples.

Sample	${\mathit{C}}_{\mathit{p}100\mathbf{Hz}}$ [pF]	${\mathit{R}}_{\mathit{p}100\mathbf{Hz}}$[MΩ]	${\mathit{\sigma }}_{\mathit{a}\mathit{c}100\mathbf{Hz}}$ [µΩ cm−1]
(1:1)	17.553	155.359	0.102
(1:1)s 100°C	39.402	53.538	0.322
(1:1)s 150°C	27.739	40.559	0.484
(1:1)s 200°C	12.454	196.122	0.101