an aqueous and method for manufacturing a ceramic superconductor coated metal fiber comprises a container for holding a nonaqueous solution inwhich particles of superconductor material are colloidally suspended to form a slurry . a voltage source is provided to influence the slurry with an electric field and a magnet device is provided to influence the slurry with a magnetic field . the magnetic field is oriented relative to the fiber to align the superconductor particles of the slurry in a desired orientation for subsequent attachment onto the surface of the fiber . the voltage source is connected to the metal fiber to electrically bias the fiber as it is drawn through the slurry . consequently , charged superconductor particles in the slurry attach to the electrically biased fiber . subsequently , the coated fiber is heated to sinter the aligned particles and establish a ceramic superconductor shell on the metallic fiber substrate .