Effect of water on ionic conductivity and diffusion in Na/sub 2/O. 3SiO/sub 2/ glasses

Technical Report · Wed Sep 01 04:00:00 EDT 1976

OSTI ID:7145608

McVay, G L; Knotek, M L; Johnson, Jr, R T; Baughman, R J; Eagan, R J

The diffusion coefficient and ionic conductivity of Na/sup +/-ions have been measured as a function of temperature in a Na/sub 2/O . 3SiO/sub 2/ glass which contained concentrations of water ranging from 0.011 to 0.086 mole percent. The diffusion coefficient was determined by tracer diffusion measurements using /sup 22/Na. Ionic conductivity measurements were made using 2-, 3-, and 4-terminal ac and dc techniques. Results show that (1) the effect of H/sub 2/O on the diffusion coefficient and the ionic conductivity is similar, both decreasing with increasing H/sub 2/O concentration and (2) the correlation factor has a value of about 0.5 (or less) and is weakly temperature dependent.

• Research Organization: Sandia Labs., Albuquerque, N.Mex. (USA)
• DOE Contract Number: E(29-1)-789
• OSTI ID: 7145608
• Report Number(s): SAND-76-0384
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
ALKALI METAL COMPOUNDS
ALKALI METAL ISOTOPES
BETA DECAY RADIOISOTOPES
BETA-PLUS DECAY RADIOISOTOPES
DIFFUSION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
GLASS
HYDROGEN COMPOUNDS
IONIC CONDUCTIVITY
ISOTOPE APPLICATIONS
ISOTOPES
LIGHT NUCLEI
NUCLEI
ODD-ODD NUCLEI
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RADIOISOTOPES
SILICATES
SILICON COMPOUNDS
SODIUM 22
SODIUM COMPOUNDS
SODIUM ISOTOPES
SODIUM SILICATES
TEMPERATURE DEPENDENCE
TRACER TECHNIQUES
WATER
YEARS LIVING RADIOISOTOPES