Abstract

The effect of an intermediate coating treatment on the superconducting properties of is reported. In this process, superconductor grains are coated with by soaking the grains in solution between sintering treatments. Critical transport current density, measured by a standard four-probe dc resistive method, is found to be significantly improved. This effect is prominent for high-temperature sintering near the melting point; textured crystal growth is seen and the critical transport current density reaches at 77 K, 0 T.

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