High-Temperature Superconducting Materials

Cardwell, DA

doi:10.1007/978-1-4615-3818-9_28

Cited by 3 publications

(4 citation statements)

References 29 publications

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“…The cross section has been staggered to better illustrate the structure of the device Since the first superconductor, mercury (Hg), was identified in 1911 [78], there has been a drive to identify further materials which exhibit this useful property. There is one further feature of all the superconductors that have been identified so far in the published literature in that they all require cooling to cryogenic (or nearcryogenic) temperatures -for example, mercury only superconducts at temperatures lower than 4.2 K [79]. The temperature below which a material becomes a superconductor is called the critical temperature and is commonly denoted by T C .…”

Section: Superconducting Transition Edge Sensorsmentioning

confidence: 98%

Single-Photon Detectors for Infrared Wavelengths in the Range 1–1.7 μm

Buller¹,

Collins²

2014

Springer Series on Fluorescence

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The ongoing progress of scientific research in areas such as quantum communications, low-light level laser ranging, and material science (to name but a few) has led to increased interest in the detection of single photons in the wavelength range 1-1.7 μm. Several technologies have been used to detect photons with wavelengths in this range -each with different characteristic parameters that affect their suitability for specific applications. This chapter will provide a review of progress in the development of detectors for use in this spectral region and will highlight some notable results.

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Section: Superconducting Transition Edge Sensorsmentioning

confidence: 98%

Single-Photon Detectors for Infrared Wavelengths in the Range 1–1.7 μm

Buller¹,

Collins²

2014

Springer Series on Fluorescence

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“…The hysteresis motors can be used to circumvent these disadvantages. They have reliable self-starting without need for any kind of start-up procedure; a durable windingless rotor structure; high output power/unit volume; smooth, vibration-free operation; quiet operation; nonzero torque at rest; constant torque; and low inrush current [1][2][3][4][5]. There are also various studies to be found in the literature [6][7][8] on line-start permanent magnet synchronous motors without using the hysteresis ring.…”

Section: Introductionmentioning

confidence: 99%

Design of a self-starting hybrid permanent magnet hysteresis synchronous motor connected directly to the grid

Gedikpınar¹,

Atdogmus²

2017

Turk J Elec Eng & Comp Sci

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Abstract:In this work, a permanent magnet hysteresis synchronous (PMHS) motor was designed to improve the efficiency of the system. The proposed motor is intended for pumping applications, such as submersible pump motors, fire pumps, oil-well pumps, and circulation pumps requiring high-speed operation. The efficiency of the pump system increases depending on the speed of the pump fans. The total efficiency of the pump system is reduced because the load increases exponentially in these types of application systems. The speed is important for the pumping applications in order to improve the efficiency of the pump system. Nowadays, traditional induction motors are widely used in these applications; however, they experience rotor slip when operating under synchronous speed with loaded conditions. The system efficiency is dramatically reduced when the rotor slip is increased by depending on the pump load. The proposed motor can achieve self-starting without any kind of driver for direct connection to the grid. In addition, the proposed motor can be operated at synchronous speed under full load conditions. The designed motor is analyzed by using simulation results, such as the performance of the starting motor at various loads, stator-rotor flux density, and synchronous speed at stand-still.

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“…The production of superconducting phase and others by sol-gel technique have been communicated in many literature [1,2]. The sol-gel processing yields particles with smaller particle size, gives better homogeneity and better stoichiometry control and permits lower sintering temperature compared with other conventional methods [3,4].…”

Section: Introductionmentioning

confidence: 99%

“…With regard to conventional fillers, the free oxygen dislocated on the surface of the ceramic grains of the high T c superconductor, will have a significant impact on the formation of a phase boundary, the physical-mechanical properties, and on the SC properties of the polymer-ceramic composites. Polymer nanocomposites using conductive ceramic fillers are important because they have multifunctional properties such as electronic conductivity with elasticity, increased modulus, strength, heat resistance, and decreased flammability, required for a spectrum of applications [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Nanocomposites Based on High-T<sub>c</sub> Superconducting Ceramic 2212 BSCCO and their Properties

Jayasree¹,

Predeep²

2014

AMR

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High temperature superconducting (SC) 2212 BiSrCaCuO nanoparticles were prepared by Sol-Gel method. Precursor was characterized by X-ray diffraction (XRD) and scanning Electron micrography. The superconductor nanocomposites were fabricated by nanoparticles of the SC powder with NR/LLDPE blends. The superconductive properties of the sintered samples and the nanocomposites were studied. Transition to a superconducting state around 88K appeared in the parent sample and in the composites. The scanning electron microscopic investigation of the nanostructures of SC polymer ceramic nanocomposites shown nanoscale dispersion of BSCCO in the polymer phase uniformly.

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High-Temperature Superconducting Materials

Cited by 3 publications

References 29 publications

Single-Photon Detectors for Infrared Wavelengths in the Range 1–1.7 μm

Single-Photon Detectors for Infrared Wavelengths in the Range 1–1.7 μm

Design of a self-starting hybrid permanent magnet hysteresis synchronous motor connected directly to the grid

Nanocomposites Based on High-T<sub>c</sub> Superconducting Ceramic 2212 BSCCO and their Properties

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