1. The electrical conductivity of chromium trioxide and its suboxides
- Author
-
M.A. Khilla, A.K. Mohamed, and Z.M. Hanafi
- Subjects
Superconductivity ,Ac circuit ,Chromium trioxide ,Range (particle radiation) ,Materials science ,business.industry ,Inorganic chemistry ,Analytical chemistry ,Atmospheric temperature range ,Condensed Matter Physics ,chemistry.chemical_compound ,Semiconductor ,chemistry ,Electrical resistivity and conductivity ,Electric properties ,Physical and Theoretical Chemistry ,business ,Instrumentation - Abstract
The electrical conductivity of CrO 3 and seven samples between CrO 3 and Cr 2 O 3 is measured between room temperature and the temperature of preparation of the corresponding sample using an AC circuit. CrO 3 is found to be a semiconductor having a resistance of the order of 10 6 Ω when completely dried by heating to 100°C under a vacuum of 10 −3 mm Hg. Cr 2 O 3 gives a resistance of the order of l0 5 –l0 3 Ω in the temperature range 25–370°C. The samples in between possess values ranging between 10 5 and 10 4 Ω. The activation energies are interpreted as being due to the extrinsic range.
- Published
- 1982
- Full Text
- View/download PDF