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The Role of Impurity Precipitation on Ionic Conductivity of NaCl:Sr System
Author(s) -
Reddy K. Narasimha,
Sayanna R.
Publication year - 1986
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.2170210221
Subject(s) - conductivity , impurity , strontium , precipitation , ionic conductivity , quenching (fluorescence) , electrical resistivity and conductivity , analytical chemistry (journal) , dispersion (optics) , doping , chemistry , crystal (programming language) , materials science , inorganic chemistry , mineralogy , electrolyte , chromatography , electrode , optics , fluorescence , physics , electrical engineering , optoelectronics , organic chemistry , meteorology , engineering , computer science , programming language
Abstract Ionic conductivity studies of NaCl crystals doped with 1 mole% of strontium both in as grown state and after quenching them from 550°C indicate that the conductivity depends on the impuritiy precipitates. It is found that all conductivity plots of pure NaCl, NaCl:Sr and NaCl:Sr crystals quenched from 550°C are straights lines, both in extensive and intrensic regions. The conductivity of NaCl: Sr system is always less than that of pure NaCl crystal. The results are explained on the basis of state of dispersion of impurities.