The effect of prolonged annealing treatments at elevated temperatures (900-1700 K) on the a.c. ionic conductivity of Sawyer PQ 'hydrogen swept' quartz has been investigated by impedance spectroscopy measurements. Transient and irreversible effects have been observed during the annealings: specifically, a monotonic enhancement of the conductivity is detected in the 900-1300 K temperature range, while at higher annealing temperatures an opposite effect is evidenced. The experimental results can be interpreted in the frame of a phenomenological model featuring two equilibrium reactions; an indirect role of hydrogen impurity in the ionic transport dynamics is evidenced, also by means of infrared spectroscopy measurements.
Campone, P., Magliocco, M., Spinolo, G., & Vedda, A. (1995). High temperature annealing effects on the A.C. conductivity of swept synthetic quartz. RADIATION EFFECTS AND DEFECTS IN SOLIDS.
Citazione: | Campone, P., Magliocco, M., Spinolo, G., & Vedda, A. (1995). High temperature annealing effects on the A.C. conductivity of swept synthetic quartz. RADIATION EFFECTS AND DEFECTS IN SOLIDS. | |
Tipo: | Articolo in rivista - Articolo scientifico | |
Carattere della pubblicazione: | Scientifica | |
Titolo: | High temperature annealing effects on the A.C. conductivity of swept synthetic quartz | |
Autori: | Campone, P; Magliocco, M; Spinolo, G; Vedda, A | |
Autori: | ||
Data di pubblicazione: | 1995 | |
Lingua: | English | |
Rivista: | RADIATION EFFECTS AND DEFECTS IN SOLIDS | |
Appare nelle tipologie: | 01 - Articolo su rivista |