Premium
Structural Interpretations of Dielectric Measurements in a Lead Borate Melt
Author(s) -
LUCA J. P.,
BERGERON C. G.
Publication year - 1971
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1971.tb12262.x
Subject(s) - activation energy , dielectric , materials science , thermal conduction , ionic conductivity , relaxation (psychology) , amorphous solid , boron , dielectric loss , ionic bonding , electrical resistivity and conductivity , permittivity , conductivity , analytical chemistry (journal) , mineralogy , ion , chemistry , composite material , crystallography , electrical engineering , electrode , psychology , social psychology , optoelectronics , organic chemistry , electrolyte , engineering , chromatography
The electrical conductivity, dielectric permittivity, and dielectric loss of amorphous PbO‐2B 2 O 3 were measured from 300° to 850°C. The experimental activation energy for conduction was 37±4 kcal/mol from 300° to 450°C and 89±10 kcal/mol from 450° to 650°C and gradually decreased to 34±4 kcal/mol with further increases in temperature. The most probable relaxation time, determined from the dielectric measurements, had the same experimental activation energy as conduction. Possible mechanisms of ionic transport for Pb in the glass and melt are proposed.