| Autor: |
Lipare, A. Y., Vasambekar, P. N., Vaingankar, A. S. |
| Zdroj: |
Physica Status Solidi (A) - Applications and Materials Science; April 2003, Vol. 196 Issue: 2 p372-378, 7p |
| Abstrakt: |
Polycrystalline soft ferrites, ZnxCu1xFe2O4 (x = 0.30, 0.50, 0.70, 0.80 and 0.90), doped with controlled amounts of calcium chloride (CaCl2) were prepared by standard ceramic techniques. The samples were characterized using X-ray and IR techniques. These compounds are being developed as humidity sensing materials with a final aim of developing a sensor. The temperature dependence of the dc resistivity (ρ) was studied by the usual two-probe method from room temperature to 500 °C. Parameters such as resistivity (ρ) and activation energy (ΔE) were computed and the results discussed on the basis of existing theories. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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