Development program of a 60 kA current lead using high temperature superconductors (2008)
Heller, R., Friesinger, G., Goldacker, W., Kathol, H., Ullmann, B., Fuchs, A. M., ...
The use of high temperature superconductors in current leads to reduce the refrigerator power consumption has been investigated in the last few years by many groups. Potential candidates are Y-123...
Heller, R., Friesinger, G., Goldacker, W., Quilitz, M., Tasca, M., Fuchs, A. M., ...
In the frame of the European Fusion Technology Programme, FZK Karlsruhe and CRPP Villigen have started a development program for design and construction of a 60 kA current lead for the ITER Toroidal...
Adesso, M. G., Flukiger, R., Giamarchi, T., Goldacker, W., Kupfer, H., Pace, S., ...
We analyse the phase transition between the Bragg Glass and the Disordered phase in the vortex lattice in type-II superconductors, both by analytical computations and experimental investigations. It...
Scaling the reversible strain response of MgB2-conductors (2006)
Dhallé, M.M.J., Weeren, H. Van, Wessel, W.A.J., Ouden, A. Den, Husek, I., ...
Flux penetration into superconducting Nb3Sn in oblique magnetic fields (2006)
Gheorghe, D. G., Menghini, M., Wijngaarden, R., Brandt, E. H., Mikitik, G. P., Goldacker, W.
High current DyBCO-ROEBEL Assembled Coated Conductor (RACC) (2005)
Goldacker, W., Nast, R., Kotzyba, G., Schlachter, S. I., Frank, A., Ringsdorf, B., ...
Low AC loss high transport current HTS cables (>1 kA) are required for application in transformers, generators and are considered for future generations of fusion reactors coils. 2G coated conductors...
Scaling the reversible strain response of MgB2 conductors (2005)
Dhallé, M.M.J., Weeren, H. Van, Wessel, W.A.J., Ouden, A. Den, Husek, I., ...
Characterization of low AC loss elementary and assembled BSCCO conductors (2005)
Lehtonen, J., Masti, M., Joronen, J., Zabara, O., Schmidt, C., Goldacker, W., ...
Adiabatic normal zone development in MgB2 superconductors (2005)
Weeren Van, H., Eijnden Van Den, N.C., Wessel, W.A.J., Lezza, P., Schlachter, S.I., Goldacker, W., ...
A-priori knowledge of the normal zone development in MgB/sub 2/ conductors is essential for quench protection of applications. Therefore the normal zone propagation in a monofilament MgB/sub 2//Fe...
Specific heat of Nb_3Sn: The case for a second energy gap (2004)
Guritanu, V., Goldacker, W., Bouquet, F., Wang, Y., Lortz, R., Goll, G., ...
We present new specific heat data for Nb3Sn, a well-known technically applied superconductor with a critical temperature T_c ~ 18 K, in the temperature range from 1.2 to 200 K in zero magnetic field,...
Schlachter, S. I., Goldacker, W., Reiner, J., Zimmer, S., Liu, B., Obst, B.
MgB2 wires and tapes suffer from a limitation of the transport current densities, especially at low field, due to an unsufficient thermal stabilization caused by hot spots from a non-homogeneous...
Mechanically Reinforced MgB2 Wires and Tapes with High Transport Currents (2002)
Goldacker, W., Schlachter, S. I., Reiner, H., Zimmer, S., Obst, B., Kiesel, H., ...
In this contribution, different concepts for mechanically reinforced MgB2 wires with high transport currents are presented and characterised. It is shown that the achieved critical transport currents...
Influence of mechanical reinforcement of MgB2 wires on the superconducting properties (2001)
Goldacker, W., Schlachter, S. I.
Monofilamentary MgB2-wires with a mechanical tough Nb/Cu/steel or Fe/steel sheath were prepared and characterized. The steel content was varied to investigate the reinforcement effect and the...
Mechanically reinforced MgB2 wires and tapes with high transport currents (2001)
Nast, R., Schlachter, S. I., Zimmer, S., Reiner, H., Goldacker, W.
Monofilamentary MgB2-wires with a 2- or 3-component sheath containing mechanical reinforcing stainless steel (SS) were prepared and characterized. In direct contact to the superconductor Nb, Ta or Fe...
High Pressure Studies of Tc and Lattice Parameters of MgB2 (2001)
Schlachter, S. I., Fietz, W. H., Grube, K., Goldacker, W.
We performed ac-susceptibility measurements of magnesium diboride powder samples under pure hydrostatic pressures up to 0.4 GPa and under quasi-hydrostatic pressure conditions up to 8 GPa in a helium...
High transport currents in mechanically reinforced MgB2 wires (2001)
Goldacker, W., Schlachter, S. I., Zimmer, S., Reiner, H.
We prepared and characterized monofilamentary MgB2 wires with a mechanically reinforced composite sheath of Ta(Nb)/Cu/steel, which leads to dense filaments and correspondingly high transport currents...
R. Heller, G. Friesinger, W. Goldacker, M. Quilitz, M. Tasca
In the frame of the European Fusion Technology Programme, FZK Karlsruhe and CRPP Villigen have started a development program for design and construction of a 60 kA current lead for the ITER Toroidal...
X-ray diffraction measurements of Nb3Sn mono- and rnultifilamentary tapes have been performed in the temperature range 5 ≤ T ≤ 300 K under variable axial stress by means of a newly...
X-ray diffraction measurements of Nb3Sn mono- and rnultifilamentary tapes have been performed in the temperature range 5 ≤ T ≤ 300 K under variable axial stress by means of a newly...
X-ray diffraction measurements of Nb3Sn mono- and rnultifilamentary tapes have been performed in the temperature range 5 ≤ T ≤ 300 K under variable axial stress by means of a newly...