Accession Number : AD0754804

Title :   Preparation and Ionic Conductivity of OH(-)-Free Sodium Fluoride Crystals Doped with Calcium,

Corporate Author : CORNELL UNIV ITHACA N Y MATERIALS SCIENCE CENTER

Personal Author(s) : O'Brien,M. F. ; Plovnick,R. H.

Report Date : 18 JUL 1969

Pagination or Media Count : 13

Abstract : A series of OH(-)-free NaF single crystals has been prepared and the influence of substitutional calcium ions on the ionic conductivity has been studied. The activation energy for migration of a cation vacancy in NaF:Ca is 1.36 plus or minus 0.1 eV. An isothermal plot of ionic conductivity vs. divalent impurity concentration has been used to analyze several nominally pure NaF samples for divalent impurity levels. (Author)

Descriptors :   (*SODIUM COMPOUNDS, ELECTRICAL CONDUCTIVITY), FLUORIDES, CALCIUM, IMPURITIES, CRYSTAL GROWTH, DOPING

Subject Categories : Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE