Search Results - "Askew, Thomas R."

Demagnetization of trapped field in high TC superconductors using pulsed field methods by LIHUA CHEN, CHA, Yung S, CLAUS, Helmut, ASKEW, Thomas R, HONG ZHENG, VEAL, Boyd W, PENG, Fang Z

“…After demagnetization, the trapped field has both positive and negative values at various locations in the HTS monolith…”
Get full text

Nonlinear magnetic diffusion in single-domain YBCO cylinders under pulsed field conditions by Askew, T.R., O'Daniel, J.C., Weber, J.M., Cha, Y.S.

“…A step-function increase in magnetic field has been applied to various single-domain Y-Ba-Cu-O rings and disks at 77 K. The magnetic field in the center of…”
Get full text

Transient response of 50 KiloAmp Y-Ba-Cu-O rings and ring pairs to pulsed magnetic fields by Askew, T.R., Cha, Y.S.

“…Shielding current limits and magnetic diffusion characteristics have been measured at 77 K in large-grain YBCO rings with oriented microstructures. The samples…”
Get full text

Influence of microstructure on power dissipation in bulk Y-Ba-Cu-O structures by Askew, T.R., Metzler, M.G., Herron, M.S., Button, T.W.

“…The relatively low values of critical current density (J/sub C/) in bulk high T/sub C/ materials are a problem for many applications, but these materials are…”
Get full text

Demagnetization of Trapped Field in High T Superconductors Using Pulsed Field Methods by Lihua Chen, Cha, Y.S., Claus, H., Askew, T.R., Hong Zheng, Veal, B.W., Peng, F.Z.

“…This paper examines the demagnetization of a trapped magnetic field in a high T C superconducting (HTS) monolith using a single, short, high-amplitude field…”
Get full text

Local magnetic field distribution in polycrystalline YBa 2 Cu 3 O 7 and its influence on bulk critical currents by Askew, Thomas R., Flippen, Richard B., Leary, Kevin J., Kunchur, Milind N.

“…The transport critical current density J c has been measured in high quality polycrystalline YBa 2 Cu 3 O 7 samples made from extruded preforms. The hysteretic…”
Get full text

Local magnetic field distribution in polycrystalline YBa2Cu3O7 and its influence on bulk critical currents by Askew, Thomas R., Flippen, Richard B., Leary, Kevin J., Kunchur, Milind N.

“…The transport critical current density Jc has been measured in high quality polycrystalline YBa2Cu3O7 samples made from extruded preforms. The hysteretic…”
Get full text

The production of high performance YBa 2 Cu 3 O 7 using nitrogen dioxide by Leary, Kevin J., Jacobson, Howard W., Levoy, Nancy F., Lapalomento, Richard A., Askew, Thomas R., Flippen, Richard B., Keller, Steven W., Stacy, Angelica M.

“…Energy Dispersive X-ray Spectroscopy (EDS) was used to show that the elemental homogeneity of YBa 2 Cu 3 O 7 powders can be improved substantially by heating…”
Get full text

Local magnetic field distribution in polycrystalline YBa sub 2 Cu sub 3 O sub 7 and its influence on bulk critical currents by Askew, Thomas R, Flippen, Richard B, Leary, Kevin J

“…Transport J sub / c/ is measured in high-quality title samples made from extruded preforms…”
Get full text

The production of high performance YBa2Cu3O7 using nitrogen dioxide by Leary, Kevin J., Jacobson, Howard W., Levoy, Nancy F., Lapalomento, Richard A., Askew, Thomas R., Flippen, Richard B., Keller, Steven W., Stacy, Angelica M.

“…Energy Dispersive X-ray Spectroscopy (EDS) was used to show that the elemental homogeneity of YBa2Cu3O7 powders can be improved substantially by heating the…”
Get full text