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Recently, in Japan and abroad, most of the research and development on
the application of superconductors, which deals with themes ranging from
the fabrication process to new applications, is conducted in the form of
national projects that involve collaborative research among private companies,
universities and national laboratories. In order to realize the practical
applications of superconductors, their economic feasibility must be considered.
Furthermore, concept designs, trail productions and experiments suggest
that high-temperature superconductors will also be realized. The electromagnetic,
thermal and mechanical properties of HTSs differ from those of low-temperature
superconductors (LTSs). Therefore, the design techniques for HTS applications
must be established taking into consideration the knowledge and experience
obtained from LTS applications. Because of the above considerations, this
technical report was written with the aim of proposing guidelines for designing
HTS applications using Bi-system and Y-system conductors. Chapter 2 describes
the current status and material properties of HTS wires, thin films and
thick films. Chapter 3 describes the electromagnetic, thermal, mechanical
and insulating properties of these wires and films as well as the measurement
techniques that are necessary for designing HTS applications. Chapter 4
presents case studies of the design of HTS applications such as SMES coils,
cable transformers and NMR magnets. Chapter 5 describes the current status
of the applications of superconductors, including that of the applications
of LTSs. |
