Abstract
Characterization of supercondunctor material has been investigated by means of thermal desorption mass spectrometry and oxygen quantification. From the results, the oxygen content increased with the decrease of grain size of the specimen. The oxygen content of the specimen which grain size is 3μmφ is 6% higher than the specimen which grain size is 150μmφ. On the smaller grainsize specimen, gas extraction takes place in the quite 500°C region. Extracted gases from these specimens mainly consist of oxygen and water vapor.
The obtained results show that oxygen in these samples were at least more than four states depending on the grain sizes.
