| 摘要 |
PURPOSE:To produce an oxide superconductor which undergoes very slight or no lowering of the Tc, Jc, etc., and undergoes slight lowering of the when a magnetic field is applied. CONSTITUTION:Starting materials contg. Tl, Ba, Sr, Ca, Cu and Mg are weighed so as to obtain a compsn. represented by a general formula Tl1.4-2 BaASrBCaCCU2.8-3.6Mg0.05-2Ox (where 1.2<=A<=1.9, B<=1, (A+B)<=2.3, 1.8(Ci2.6 and the numbers show atomic ratio). They are mixed and fired to produce an oxide superconductor having the above-mentioned. compsn. |
