Search Results - "Warnes, W. H."

Estimation of the Nb-Ti-Ta phase diagram by Li Na, Warnes, W.H.

“…The Nb-Ti-Ta ternary alloy system has been studied experimentally using x-ray diffraction, electron microprobe analysis, and measurements of the…”
Get full text

Analytical technique for deriving the distribution of critical currents in a superconducting wire by WARNES, W. H, LARBALESTIER, D. C

“…The derivation of the critical current or critical current density distribution from an analysis of the voltage-current characteristic of a composite…”
Get full text

Extended measurements of the resistive critical current transition by Narang, G., Warnes, W.H.

“…The resistive critical current transition has been measured in a variety of Nb-Ti wires over several decades in voltage. The measurements were made as a…”
Get full text

Evaluation of Cu:SC ratio measurements by chemical etching, electrical resistivity, and image analysis by Pyon, T., Warnes, W.H., Siddall, M.

“…A comparison is made of the techniques for measuring the copper to superconductor ratio (Cu:SC) in a set of commercial laboratory composite superconducting…”
Get full text

Determination of the average critical current from measurements of the extended resistive transition by Warnes, W., Larbalestier, D.

Get full text

Mechanical behavior of fine filament Nb-Ti as a function of processing (composite superconductors) by Guo, Z., Warnes, W.H.

“…Experimental data on the mechanical properties of Nb-Ti filaments during standard wire processing from first heat treatment size to final wire size are…”
Get full text

Perturbed angular correlation study of impurity interactions in a cubic host metal: Hf in Nb by WARNES, W. H, GARDNER, J. A

“…{sup 181}Ta perturbed angular correlation experiments have been performed on Nb-Hf alloys containing 0.5--5.5 at. % Hf. A Maxwellian frequency distribution…”
Get full text

Temperature dependence of YBa2Cu3O7-x local structure: a perturbed-angular-correlation study by GARDNER, J. A, SU, H. T, MCKALE, A. G, KAO, S. S, PENG, L. L, WARNES, W. H, SOMMERS, J. A, ATHREYA, K, FRANZEN, H, KIM, S.-J

Get full text

Microstructural and compositional gradients in the filament-matrix region of Nb-Ti wire composites by Faase, K.J., Warnes, W.H., Lee, P.J., Larbalestier, D.C.

“…Transverse cross-sections of Nb-Ti wire composites after final /spl alpha/-Ti precipitation heat treatment (10-480hr/420/spl deg/C) were examined and analyzed…”
Get full text

Compositional inhomogeneities in Nb-Ti and its alloys by West, A., Warnes, W., Moffat, D., Larbalestier, D.

“…Results are presented showing that commercially produced Nb-Ti and Nb-Ti-Ta can have extensive chemical inhomogeneities, of order 10 wt.%. These chemical…”
Get full text

Mechanical behavior of fine filament Nb-Ti as a function ofprocessing composite superconductors by Guo, Z, Warnes, W H

“…Experimental data on the mechanical properties of Nb-Ti filaments during standard wire processing from first heat treatment size to final wire size are…”
Get full text

Temperature dependence of YBa 2 Cu 3 O 7 − x local structure: A perturbed-angular-correlation study by Gardner, John A., Su, H. T., McKale, A. G., Kao, S. S., Peng, L. L., Warnes, W. H., Sommers, James A., Athreya, K., Franzen, H., Kim, S-J.

Get full text