By Ziad Melhem

Hot temperature superconductors (HTS) supply many benefits via their program in electric structures, together with excessive potency functionality and excessive throughput with low electric losses. whereas cryogenic cooling and precision fabrics manufacture is needed to accomplish this aim, fee discounts with out major functionality loss are being accomplished via complicated layout, improvement and manufacture of HTS apparatus. This booklet explores the basic technological know-how and engineering of HTS elements, reminiscent of wires and tapes, cables, coils and magnets, and stories the power purposes those fabrics are utilized in, from strength platforms and rotating equipment to fusion and accelerator applied sciences.

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14 presents the historical price of silver from 1992 through May 2011, showing an order of magnitude increase between 2004 and mid-2011. 5); at the time of writing the price is expected to continue to rise for the foreseeable future and continue to be high for many years. For many users of HTS, this motivates the interest in YBCO. The performance comparison will be considered in the next section. org, 2011). © Woodhead Publishing Limited, 2012 18 High temperature superconductors for energy applications The earliest efforts to make YBCO wires using a simple powder-in-tube method (as used for BSCCO) failed miserably.

About one year after the discovery of the LaBa- and YBa-cuprates, Hiroshi Maeda and co-workers at the National Research Institute for Metals in Japan reported discovery of multiple high temperature superconductivity phases in BiSrCa-cuprates (Maeda et al. 1988, Matsui et al. 1988). 3. At about the same time Alan Hermann at the University of Arkansas reported superconductivity at 120 K in TlBaCacuprates (Sheng and Hermann, 1988). , 1993). , 1993), followed by a rapid proliferation of different HgBaCa-cuprate phases with higher temperatures.

Scanlan R, Malozemoff A and Larbalestier D, (2004), ‘Superconducting materials for large scale applications’, Proc IEEE, 92, 1639–1654. , (1999), ‘Performance of a 1-MVA HTS demonstration transformer ’, IEEE Trans Appl Supercon, 9, 680–684. Selvamanickam V, (2010) ‘Progress in SuperPower’s 2G HTS Wire Development and Manufacturing’, US DOE 2010 HTS Peer Review, available from http://www. html [accessed 28 May 2011]. Sheng Z and Hermann A, (1988), ‘Bulk superconductivity at 120 K in the Tl-Ca/Ba-Cu-O system’, Nature, 332, 138–139.

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