| 摘要 |
PURPOSE:To obtain the title paste providing a wiring circuit conductor having denseness, excellent bond strength to ceramic and stability to environment, by blending ceramic superconductor powder containing a given amount of metallic oxide material powder with an organic binder and a solvent. CONSTITUTION:Superconductor powder containing given amounts of a carbonate or oxalate of an alkaline earth metal such as Ba or Sr and an oxide or carbonate of Y or lanthanide element is dispersed into an organic solvent, reacted with a given amount of a copper salt and >=equivalent of oxalic acid to give a solid substance or coprecipitation, which is separated and heat-treated to give ceramic superconductor powder. Then the powder is blended with 0.1-50 pts.wt. metal oxide which is silver oxide, palladium oxide and/or a mixture containing silver oxide or palladium oxide and releases oxygen during calcining process and made into a liquid phase to form an adhesion layer, then the blend powder is incorporated with an organic binder (e.g., ethyl cellulose) and a solvent (e.g., terpineol-ethylene glycol monobutyl ether) and mixed by a grinder, etc. |
