PMC

XRD Spectrum of Aluminate Ternal RG.

Dielectric response according to frequency. Adapted from [].

Impedance measured for all the DCA using H1, H2, H3 and H4 at 60,016 Hz.

Scheme of (a) Conductimetric sensor and (b) Dielectric spectroscopy technique.

Bode diagrams of coplanar plates capacitors of empty device (NCA) (a) Impedance and (b) Phase angle.

XRD Spectrum of dried aluminate after its interaction with aqueous chloride solutions (0 M, 0.5 M, 0.7 M, 1.0 M).

vs. Frequency (a) Time and (b) Standard deviation (): C15—0.50%, C17—1.50%, and C19—2.50%.

(a) CA sample in the container; (b) Sample located in the Dielectric text fixture 16451B; (c) Equivalent circuit ().

Chloride concentration effect on according to the chamber where the measurement was taken, the frequency is f = 60,016 Hz.

Bode diagrams of coplanar plates capacitors of dried CA (DCA) of devices 12 and 20. (a) impedance and (b) phase angle.

General behavior of in presence of chloride solutions according to the chamber where the measurement was taken, the frequency is 60,016 Hz. Concentration units in wt %.

(a) sensor design; (b) longitudinal section of the device showing the label for each chamber; and (c) cross section of the third chamber showing the label of each capacitor according to the chamber.

Time effect on CA’s electrical behavior when 0 M, 0.5 M, 0.7 M and 1 M NaCl solutions are added. Each data set is the mean of three.

Time effect on CA’s behavior when 0.7 M NaCl solutions are added at specific frequencies. (a) Relative permittivity vs Time, regarding specific frequencies and (b) Relative permittivity vs. Frequency, regarding time. At 0 min the CA was dried.

(a) Effect of chloride content on measured relative permittivity for CA dried and exposed to 0 M, 0.5 M, 0.7 M and 1 M NaCl solutions; (b) Correlation between chloride concentration and relative permittivity.