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Your search keyword '"Muller, K.H"' showing total 25 results
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25 results on '"Muller, K.H"'

5. Effect on critical current density and irreversibility behaviour of mechanical deformation of Bi-(Pb)-Sr-Ca-Cu-O superconducting tapes.

Author

Liu, H.K., Horvat, J., Bhasale, R., Hu, Q.Y., Dou, S.X., Muller, K.H., and Andrikidis, C.

Subjects
CRITICAL current density (Superconductivity), SUPERCONDUCTING tape, SUPERCONDUCTORS, DEFORMATIONS (Mechanics), IRREVERSIBLE processes (Thermodynamics)
Abstract

Comparative studies on the Ag-clad 27-filamentary Bi-2223 tapes deformed under different conditions have been carried out using ac susceptibility and critical current measurements. Hot pressing improves the grain alignment and grain connectivity, resulting in a noticeable improvement in the critical current density in the low field region. However, the irreversibility line for the cold pressed Ag/Bi-2223 tape is positioned at higher temperatures than that for the rolled tape which is in turn positioned at higher temperatures than that for the hot-pressed tape. These results indicate that the hot deformation is only beneficial to the improvement of weak links whereas the cold deformation induces more defects which act as pinning centres in these tapes, responsible for the improvement in flux pinning. [ABSTRACT FROM PUBLISHER]

Published
1997
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7. Metastable Borides and the Inducement of Texture in Pr[sub 2]Fe[sub 14]B-Type Magnets Produced by HDDR.

Author

Gutfleisch, O., Teresiak, A., Gebel, B., Muller, K.H., Cannesan, N.B., Brown, D., and Harris, I.R.

Subjects
HYDROGENATION, ELECTRON-stimulated desorption, RECOMBINATION in semiconductors, ALLOYS
Abstract

Presents a study which discussed the application of a modified hydrogenation-disproportionation-desorption-recombination process to praseodymium[sub 2](iron, cobalt, zirconium)[sub 14]boron-type alloys. Methodology; Results and discussion; Conclusions.

Published
2001
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8. Magnetoresistance and magnetization of melt-spun Dy-Cu alloys.

Author

Muller, K.H. and Idzikowski, B.

Subjects
*MAGNETORESISTANCE, *MAGNETIZATION, *DYSPROSIUM
Abstract

Investigates the temperature and field dependence of the magnetoresistivity and magnetization of melt-spun ribbons with nominal composition. Experimental procedures; Findings and analysis of results.

Published
1997
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