The comparison of levitation and lateral force of bulk and cut-pasted bulk GdBCO samples at different temperatures

Celik, Sukru/0000-0002-6918-7569; GUNER, SAIT BARIS/0000-0001-7487-4817; Ozturk, Kemal/0000-0002-8847-1880; ABDIOGLU, MURAT/0000-0002-5497-0817WOS: 000512377800117In this work, in the first time, we have investigated the levitation and lateral force properties of bulk and cut-pasted bulk GdBCO samples at different temperatures and different cooling heights (CH) to determine the effect of cut-pasted process on the magnetic levitation force behaviour. the measurements of superconducting characteristics indicated that the attractive and repulsive force values of cut-pasted GdBCO sample are slightly lesser than those of GdBCO bulk sample. the maximum repulsive and attractive force values obtained as 15.45 N and -4.56 N for GdBCO bulk and as 14.78 N and -3.92 N for cut-pasted GdBCO samples at 37 K. Although there are many fabrication methods as melt-textured growth (MTG), top seeded infiltration growth (TSIG) and TSMG to produce large HTS samples, the desired large sample size and the sample shape compatible with the superconducting magnetic bearing systems are not still sufficient for the technological applications. in this study, the performed cut-pasted process and obtained magnetic levitation force data can be using for the increment sample size and the desired sample shape in the needed different geometry and size for superconducting magnetic bearing systems. (C) 2020 Elsevier B.V. All rights reserved.Scientific and Technological Research Council of Turkey (TUBITAK)Turkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [110T622]I would like to thank Prof. Dr. Hari Babu Nadendla (at Brunel University London, UK), Dr. Yunhua Shi and Prof. Dr. David Cardwell (at Cambridge University, Cambridge, UK) for their support and encouragement. All the magnetic levitation force measurements were carried out in the MLFMS made by the project of the Scientific and Technological Research Council of Turkey (TUBITAK) Project No: 110T622 (Patent application number is 2013/13638)