Poly methyl methacrylate PMMA was used to improve the flexural properties of the high temperature superconducting ceramics YBa2Cu307-x. The organic polymer was impregnated into the porous ceramic at room temperature. The flexural properties were evaluated using disk specimens. The interaction between the PMMA and ceramic was studied using electron probe microanalysis EPMA. Poly methyl methacrylate polymer increased the flexural strength of the superconducting ceramic without affecting its electrical properties. Flexural strength relationships have been developed for the superconducting ceramic with and without polymer. Performance of the ceramic-polymer composite was also evaluated by thermocycling between 77k and 300k.
This article is from 'Multifunctional Materials Held in Boston, Massachusetts on November 29-December 1 1989. Materials Research Society Symposium Proceedings. Volume 175,' AD-A253 089, p325-330.