Applications of high temperature superconductors (original) (raw)

Electronic applications of high temperature superconductors

Journal of Low Temperature Physics, 1996

Over the last decade there have emerged many electronic applications of HTS technology which have important military as well as commercial implications. Examples of these include space communications, terrestrial wireless communications, radar, surveillance, countermeasures, medical applications and cryo-electronics. I will review many of the efforts in in this area that have been supported by the DoD which has invested over $350M on this technology. In addition I will discuss the efforts to develop cryocoolers to support the HTS technology.

High Temperature Superconductors

2021

One of the pioneers who introduced superconductivity of metal solids was Kamerlingh Onnes (1911). Researchers always struggled to make observations towards superconductivity at high temperatures for achieving goals of evaluating normal room temperature superconductors. The physical properties are based entirely on the behavior of conventional and metal superconductors as a result of high-temperature superconductors. Various synthetic approaches are employed to fabricate high-temperature superconductors, but solid-state thermochemical process which involves mixing, calcinating, and sintering is the easiest approach. Emerging novel high-temperature superconductors mainly engaged with technological applications such as power transmission, Bio-magnetism, and Tokamaks high magnetic field. Finally, in this chapter, we will discuss a brief outlook, future prospects, and finished with possible science fiction and some opportunities with high-temperature superconductors.

Proceedings of the Workshop on High Temperature Superconductivity

1989

: For a long time it has been recognized that superconductivity offers a whole new realm of device performance in such applications as microwave components, radiating elements, detectors, and high speed electronics. However, the cost and complexity of liquid helium cooling systems represented an unyielding impediment to the development of practical systems. High temperature superconductivity, having less stringent cryogenic requirements, provides the impetus to the development of truly practical systems. The topics to be covered during the workshop include basic high temperature superconductivity research, theory, and experimentation; the electrical, optical, thermal, magnetic, and mechanical properties of materials; the fabrication and characterization of thin films; small scale applications such as computer electronics, SQUIDS, and IR detectors; large scale applications such as energy storage, magnets, magnetic shields and switches; and superconducting/semiconducting hybrid device...

Application of High Temperature Superconductors to Accelerators

2000

Since the discovery of high temperature superconductivity, a large effort has been made by the scientific community to investigate this field towards a possible application of the new oxide superconductors to different devices like SMES, magnetic bearings, flywheels energy storage, magnetic shielding, transmission cables, fault current limiters, etc. However, all present day large scale applications using superconductivity in accelerator technology

High Temperature Superconducting techniques and its applications

Efficiency of power production, transmission and distribution, improvement of power quality become priorities in the field of electric power industry in the 21st century. Requirements to ecological and resource saving aspects at all phases of power production and distribution are simultaneously raise. Continual improvement of technologies for the safe use of power resources is a key to sustainable development of a human society. In particular, high temperature superconductivity (HTS) should be used to meet the growing needs of the electric power industry. It is known that HTS power cables allow us to increase the level of transmitted energy to several W at a voltage of 66-110kV. HTS cables of a coaxial design are almost ideal non-polluting system shielding electromagnetic field. Superconducting electric machines are electromechanical systems that rely on the use of one or more superconducting elements. The most important parameter that is of utmost interest in these machines is the generation of a very high magnetic field that is not possible in a conventional machine. In the present work, it has been tried to analyze the various configuration of HTS power transmission systems and various applications in superconducting electrical machines.

High temperature superconductors for power applications

Journal of the European Ceramic Society, 2004

High temperature superconductivity (HTS, discovered in 1986) remains an active area of research worldwide, because its higher T c and, thus, more economical cryogenic cooling have raised the prospects for electric power application. The discovery of MgB 2 has rekindled the search for new superconductors with higher T c . Recently, various acceleration programs have been launched in Europe, USA and Japan. The advance in HTS conductor has enabled the demonstration of various application prototypes, including, power cables, transformers, motors, and fault current limiters. However, full commercialisation of HTS application critically relies on the realisation of HTS conductors that are reliable, robust and low cost with low AC-losses. Worldwide activities are, therefore, focused on developing processing technologies to fabricate the so-called coated conductor based on YBCO to fulfil the stringent specifications. While a high critical current density of around 5 MA/cm 2 (77 K) has been achieved, the conductor cost is currently estimated to be 10-50 times higher than what would be accepted. #

Status of High Temperature Superconductor Based Magnets and the Conductors They Depend Upon

2011

This paper reviews the status of high temperature superconductors for high field magnets for future devices such as a high energy LHC or a muon collider. Some of the primary challenges faced for the implementation of systems are discussed. Two conductor technologies, Bi2Sr2CaCu2O8+x and YBa2Cu3O7-, have emerged as high field conductor options, but their relative advantages and disadvantages for high field magnets are quite different. These are reviewed from an engineering perspective, including coil manufacturing, electromechanical behaviour and quench behaviour. Lastly, the important roles of “system pull” upon conductor and magnet technology development, and of interactions between the materials and magnet communities for accelerating development, are discussed.

Application of High Temperature Superconductivity in Power Systems

2000

The front end of a microwave communications system is assembled from circuit elements comprising antennae, local oscillator, mixer and filters. Interconnection is by transmission line, into which delay may be incorporated. All of these components can, with advantage, be implemented in superconducting material. Superconductors, when operating below their cross-over frequency, have values of surface resistance lower than those for normal metals such as copper and silver. This results in lower insertion loss for microwave components, allowing the design of smaller, more compact, yet at the same time more complicated, devices. The non-dispersive nature of superconductors can also be an advantage in enabling very high bandwidth signal processing. High temperature superconductors (HTS) allow operating temperatures in the liquid nitrogen range, not too far below the ambient temperature in many communications satellites. The Oxford microwave programme has concentrated on the implementation of all of the above devices in thin-film HTS, mainly Tl-2212, on a variety of substrates. The film fabrication, and performance of delay lines, antenna-mixers, resonators, filters and a voltage-controlled oscillator, are described.

Superconductivity and their Applications

Renewable Energy and Power Quality Journal, 2017

The research in the field of superconductivity has led to the synthesis of superconducting materials with features that allow you to expand the applicability of this kind of materials. Among the superconducting materials characteristics, the critical temperature of the superconductor is framing the range and type of industrial applications that can benefit from them. Some examples of industrial applications incorporating superconducting materials stand out in this paper. Among other possibilities, the nuclear magnetic resonance, the magnetic levitation train, the transport processing of electrical energy (motors, generators, transformers and power lines) and superconducting magnetic energy storage (SMES) systems are already solutions contributing to the nowadays daily life, but more than that, are solutions that will contribute to improve the quality of life of many human beings in the near future. In addition to these solutions, in this paper are presented and discussed the pros and cons of a solution designed for the fast field cycling nuclear magnetic resonance technique that benefits of the usage of superconducting blocks.