Journal
BULLETIN OF MATERIALS SCIENCE
Volume 25, Issue 7, Pages 647-651Publisher
INDIAN ACADEMY SCIENCES
DOI: 10.1007/BF02707898
Keywords
a.c. conductivity; complex impedance spectroscopy; bulk resistance; grain boundaries
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An inexpensive, indigenous and a simple electronic instrument based on voltage follower, current-to-voltage converter, zero crossing detector and a phase detector has been developed for measurement of a.c. conductivity. Real and imaginary parts of complex impedance are determined for a given sample as a function of frequency and the given sample is represented by a pure electronic model.
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