| 摘要 |
PURPOSE:To readily obtain a raw material powder for a superconductor without containing a carbonate by adding a mixed solution of metallic compounds to an alkalified alcoholic solution. CONSTITUTION:An alcoholic solution is regulated to an alkalinity of, e.g., pH >=9, using an alkaline metal hydroxide, etc. Metallic compounds corresponding to metallic compounds composing an oxide-based superconductor which is the final objective substance is prepared. The mixed solution of the metallic compounds is added to the afore-mentioned alkaline alcoholic solution to precipitate metallic hydroxides. Thereby, raw material powder for an oxide-based superconductor without containing a carbonate is obtained. |
