ERRATA: MELT PROCESSING OF YBaCuO SUPERCONDUCTORS AND CRITICAL CURRENTS

Hysteretic internal fields and critical currents in polycrystalline superconductors

The transport critical current Jc in a polycrystalline superconductor is a hysteretic function of applied magnetic field H0 due to flux trapping by grains. This effect has been observed by several groups and attempts have been made to calculate the intergranular field Hi as a function of the applied H0 in terms of an effective geometrical demagnetization factor D. In general a first-principles ...

Maximum Entropy Distributions Describing Critical Currents in Superconductors

Maximum entropy inference can be used to find equations for the critical currents (Jc) in a type II superconductor as a function of temperature, applied magnetic field, and angle of the applied field, θ or . This approach provides an understanding of how the macroscopic critical currents arise from averaging over different sources of vortex pinning. The dependence of critical currents on tempe...

Critical State Model for the Determination of Critical Currents in Disk-shaped Superconductors * -

Grafting of Acrylamide to Low Density Polyethylene During Melt Processing

Acrylamide was grafted in low density polyethylene during melt processing in the presence of a free radical initiator using a torque rheometer in a closed system. Effects of processing time, acrylamide and benzoyl peroxide concentrations were studied. FTIR studies revealed that the degree of grafting increased by an increase in acrylamide concentration. Maximum grafting was obtained at 7 mi...

Magnetic Irreversibility and Resistive Transition in YBaCuO Superconductors: Interpretations and Possible Correlations