Critical current density in (YBa2Cu3O7−δ)1−–(PrBa2Cu3O7−δ) melt-textured composites

High critical current density and low anisotropy in textured Sr1−xKxFe2As2 tapes for high field applications

From the application point of view, large critical current densities J(c) (H) for superconducting wires are required, preferably for magnetic fields higher than 5 T. Here we show that strong c-axis textured Sr(1-x)K(x)Fe(2)As(2) tapes with nearly isotropic transport J(c) were fabricated by an ex-situ powder-in-tube (PIT) process. At 4.2 K, the J(c) values show extremely weak magnetic field depe...

High Critical Current Density Superconductivity

This project was focused on a basic scientific problem, one that is at the heart of application and development of superconductivity for efficient energy usage. This is improvement in high current density which can only be achieved by learning to pin vortices to the physical structure of its underlying superconducting material. Quantized vortices are the tornado of electrical supercurrents, ubi...

High Critical Current Density MgB

EPITAXIAL YBa 2 Cu 307 ON BIAXIALLY TEXTURED ( 001 ) NI : AN APPROACH TO HIGH CRITICAL CURRENT DENSITY SUPERCONDUCTING TAPES

In-plane aligned, c-axis oriented YBazCu307 (YBCO) films with superconducting critical current densities, Jc, as high as 700,000 amperes per square centimeter at 77 kelvin have been grown on thermo-mechanically, rolled-textured (00 1) Ni tapes using pulsed-laser deposition. Epitaxial growth of oxide buffer layers directly on biaxially textured Ni, formed by recrystallization of cold-rolled pure...

Melt - Processable Polypeptide / Ionomer Molecular Composites

Introduction. Since Helminiak et al.' and Takayanagi2 first proposed the concept of a molecular composite, considerable remarch has been directed a t developing these materiale.3 Conceptually, molecular compitea are mixtures of a rigid rod polymer homogeneously dispersed in a flexible coil polymer matrix, thus providing fiber reinforcement at a molecular level. In practice, however, miscible bl...