Piston–cylinder apparatus for high-pressure impedance spectroscopy
Piston–cylinder apparatus for high-pressure impedance spectroscopy
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DOI:
10.1063/1.1147808
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发表时间:
1997
影响因子:
1.6
通讯作者:
R. Hinrichs;J. A. H. Jornada
中科院分区:
文献类型:
--
作者:
R. Hinrichs;J. A. H. Jornada
A simple piston–cylinder apparatus was developed for impedance spectroscopy at pressures up to 3 GPa and temperatures up to 500 °C. The apparatus is of the compound cylinder type, with the innermost cylinder made of a commercially available low-cost alumina-based ceramic, with pistons of hard metal that allow electric connections. Cell electrical resistance was higher than 1 MΩ at T<300 °C and higher than 100 kΩ at 400 °C. The inductivity in the wires and pistons was about 2 μH. The sample was enclosed in a h-BN capsule, which insured a good hydrostaticity without disturbing the measurement. The equipment proved to be very useful in determining the activation volume of the conduction process in several ionic conductors.