CHARACTERIZATION OF BI-PB-SB-CA-SR-CU-O SUPERCONDUCTOR SINTERED IN CONTROLLED-ATMOSPHERE
Journal
Physica C
Journal Volume
162
Pages
911-912
Date Issued
1989
Author(s)
Abstract
(Bi1.6Pb0.4-xSbxCa2Sr2Cu3 superconductors were prepared by sintering under the reduced oxygen partial pressure. Tc,zero above 105 K can be achieved bu much shorter heat treatment compared with the conventional preparation under ambient atmosphere. DTA study indicated that a significant decrease of reation temperature in forming the superconducting phase was observed under reduced oxygen partial pressure. A densor material with better superconducting properties was obtained due to this effect. Tc,zero of 108 K in (Bi1.6Pb0.4-xSbx)Ca2Sr2Cu3Oy superconductors with x ≤ 0.1 can be prepared by sinterting for 24 hours under 1 13 O2 and 12 13 Ar. © 1989.
Type
journal article