| 摘要 |
<p>A process for producing a vanadate glass, in which a striking increase of electric conductivity can be attained only by holding within a given temperature region for a short time, thereby enabling production of a vanadate glass with a high electric conductivity of 10<SUP>-1</SUP> S-cm<SUP>-1</SUP> or greater at room temperature, and in which even when the holding time in a given temperature region is varied, a variation of electric conductivity is slight to thereby ensure marked excellence in production stability and quality stability, and in which the magnitude of electric conductivity at room temperature can be designed and controlled with high precision within the region of 10<SUP>-4</SUP> S-cm<SUP>-1</SUP> or greater to thereby attain an increase of product yield. There is provided a process for producing a vanadate glass containing vanadium as a main component or an accessory component, comprising the vitrification step of vitrifying a composition containing vanadium to thereby obtain an oxide glass and the reheating step of holding the oxide glass at a temperature within the region exceeding the crystallization temperature of the oxide glass but not exceeding the melting point thereof for a given period of time.</p> |
