We study the manufacturing process and properties of composite wires from superconducting materials (mostly with the MgB2 phase formed by infiltration/diffusion of Mg to boron), considering the possibilities of their practical utilization (electromagnets, power generators, motors). Broad range of experimental methods is used for electro-magnetic and electro-mechanical characterization of samples and model windings at low temperatures 4 K – 30 K in magnetic fields up to 12 T.
Selected publications:
- Kováč, P., Hušek, I., Pérez, N., Rosová, A., Berek, D., Gelušiaková, B., Kopera, L., Melišek, T., and Nielsch, K.: Structure and properties of barrier-free MgB2 composite wires made by internal magnesium diffusion process, J. Alloys Comp. 829 (2020) 154543.
- Kováč, P., Bonura, M., Santra, S., Kopera, L., Rosová, A., Senatore, C., and Hušek, I.: Thermal conductivities and thermal runaways of superconducting MgB2 wires stabilized by an Al+Al2O3 sheath, Supercond. Sci Technol. 32 (2019) 115007.
- Kopera, L., Kováč, P., Kováč, J., Melišek, T., Hušek, I., and Berek, D.: Small diameter wind and react coil made of anodised Al-sheathed MgB2 wire, Supercond. Sci Technol. 32 (2019) 105003.
- Kováč, P., Hušek, I., Rosová, A., Kulich, M., Kováč, J., Melišek, T., Kopera, L., Balog, M., and Krížik, P.: Ultra-lightweight superconducting wire based on Mg, B, Ti and Al, Sci Reports 8 (2018) 11229.
- Kováč,P., Kopera, L., Kováč, J., Hain, M., Melišek, T., Kulich, M., and Hušek, I.: Rutherford cable made of internal magnesium diffusion MgB2 wires sheathed with Al-Al2O3 particulate metal matrix composite, Supercond. Sci Technol. 31 (2018) 015015.
- Kováč, P., Balog, M., Hušek, I., Kopera, Ľ., Krížik, P., Rosová, A., Kováč, J., Kulich, M., and Čaplovičová, M.:Properties of near- and sub-micrometre Al matrix composites strengthened with nano-scale in-situ Al2O3 aimed for low temperature applications, Cryogenics 87 (2017) 58–65.
- Hušek, I., Kováč, P., Melišek, T., Kulich, M., Rosová, A., Kopera, Ľ., and Szundiová, B.: Superconducting MgB2 wires with vanadium diffusion barrier, Supercond. Sci Technol. 30 (2017) 105008.