production and investigation of the W20O58 oxide

Author: Tsotne Dadiani
Keywords: tungsten oxides, Superconductivity, Spark Plasma Sintering, X-ray diffractometer, scanning electron microscope
Annotation:

We’ve produced several W20O58 oxide samples with Spark Plasma Sintering method. Veering reagents were used and sintering temperature was changed. Afterwards they were examined with X-Ray diffractometer and concluded samples purity, which was near to 93%. Four -point probe method was used for finding resistance dependence on temperature. Results showed metallic conductivity in temperature range of 77-250K. Superconductivity were studied in sample, but for now it does act as one.