Abstract: A method for preparing a nonflammable insulating sheath on a metal conduc wherein the sheath does not shed, slough off, wipe off, or crack when said conductor is flexed or bent comprising the steps of adding impurities to a metal electrical conductor, zonally annealing said conductor, and rectifying said conductor metallurgically by exposing said conductor to a magnetic or electrical field. The method yields a resultant sheathing on said conductor that does not burn, smoke, smolder, yield toxic fumes or crack during bending or flexing.

Abstract: Organic compounds exhibit superconducting-like behavior, as to magnetic and lectrical properties, at elevated temperatures above 21.degree.K, where 21.degree.K is the transition temperature of most known metallic superconducting materials. The structure of the organic materials according to this invention is a plurality of superconducting clusters, forming islands within a matrix of insulating material. The ratio of the clusters to the matrix material is a minimum at 1:10.sup.4. The organic compound comprises two distinct atomic groups termed an R group and COOM group combining as R--COOM with the COOM group clustering to form superconducting islands, within the R material matrix.