Abstract
The electrical conductivity of hot-pressed magnesia (HPM) was investigated as a function of porosity in the temperature range 500-900 degree C. The conductivity decreases with increasing porosity. The activation energy of the conductivity varies between 1. 2 and 2. 0 eV in the temperature range 650-900 degree C. It is suggested that the electrical conductivity in HPM is controlled by enhanced oxygen diffusion along the grain boundaries.
| Original language | English |
|---|---|
| Pages (from-to) | 189-193 |
| Number of pages | 5 |
| Journal | Materials Science and Engineering |
| Volume | 45 |
| Issue number | 2 |
| DOIs | |
| State | Published - 1 Jan 1980 |
ASJC Scopus subject areas
- General Engineering