A study of fast ionic conductors by positron annihilation
Abstract
New fast ionic conductor systems of LiCl-LiF-B2O3 and LiF-B2O3 were studied by using the positron annihilation technique. It was found that the mid-life intensity I2 in positron annihilation has a linear relationship with the material's electrical conductivity log sigma. This result, combined with the measurement result on the linear annihilation parameter, indicated that the voids between microcrystals and network phases provided more transfer paths in the micro-crystalline LiF-LiCl-B2O3 system, which led to improved electrical conductivity in this type of material.
- Publication:
-
Acta Physica Sinica
- Pub Date:
- June 1988
- Bibcode:
- 1988AcPSn..36..514W
- Keywords:
-
- Electrical Resistivity;
- Ion Currents;
- Lithium Fluorides;
- Microcrystals;
- Positron Annihilation;
- Semiconductors (Materials);
- Boron Oxides;
- Electron Spin;
- Lithium Chlorides;
- Neutron Scattering;
- Raman Spectroscopy;
- X Ray Diffraction;
- Solid-State Physics