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high-temperature superconductors

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Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001114
EISBN: 978-1-62708-162-7
... Abstract The discovery of the high-critical-temperature oxide superconductors has accelerated the interest for superconducting applications due to its higher-temperature operation at liquid nitrogen or above and thus reduces the refrigeration and liquid helium requirement. It also permits usage...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001294
EISBN: 978-1-62708-170-2
... superconductors and ferroelectric materials. angular distribution ferroelectric materials high-temperature superconductors particulates pulsed-laser deposition pulsed-laser deposition equipment PULSED-LASER DEPOSITION (PLD) is a physical vapor deposition (PVD) technique that has gained popularity...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003155
EISBN: 978-1-62708-199-3
...), and high-temperature ceramic superconductors. This article provides an overview of basic principles of superconductors and the different classes of superconducting materials and their general characteristics. A15 superconductors high-temperature superconductors niobium-titanium superconductors...
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Published: 01 December 2004
Fig. 6 A series of light and scanning electron micrographs of the high-temperature superconductor barium-yttrium copper oxide at increasing magnification. Original magnifications: (a) 70×, (b) and (d) 300×, (c) and (e) 1400×, and (f) 2800× More
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Published: 01 January 2005
Fig. 14 Typical results from the coextrusion of copper-clad/Ag-high-temperature superconductor core. (a) Processing map for Cu/Ag/YBCO. (b) Processing map for Cu/Ag/BSCCO. P , sound proportional flow; D , sound disproportional flow. Based on Ref 20 More
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001108
EISBN: 978-1-62708-162-7
..., superconductivity, superconductors SINCE THE DISCOVERY of high-temperature superconductivity in 1986, pictures of the levitation of a magnet above a superconducting sheet have been widely published in both scientific and popular journals. Owing to the widespread distribution of levitation kits to high schools...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001109
EISBN: 978-1-62708-162-7
... resistance as a function of temperature for superconductivity discovered in mercury by Kamerling Onnes in 1911. Source: Ref 10 Fig. 2(b) Electrical resistance as a function of temperature for the first high-temperature ceramic (oxide-containing barium) superconductors discovered by Bednorz...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003049
EISBN: 978-1-62708-200-6
... insulative, capacitive, conductive, resistive, sensor, electrooptic, and magnetic functions in a wide variety of electrical and electronic components. Perhaps the most significant development in the area of advanced ceramics has been the discovery of high-temperature superconductors. The development...
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Published: 01 January 1990
under the generation curve (B), the superconductor will recover. For this case, the superconductor will be stable for disturbances producing temperature increases as high as Point C, 13 K above ambient temperature. More
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Published: 01 January 1990
Fig. 15 Levitation of a high-field permanent magnet above a high- T c superconductor at liquid nitrogen temperatures. The exclusion of magnetic flux by the superconductor due to flux pinning defects creates a magnetic pressure between the magnet and the superconductor that opposes More
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Published: 01 January 1990
Fig. 17 The upper critical field ( H c2 ) as a function of temperature for the amorphous superconductors Mo 52 Ru 32 B 16 and Mo 30 Re 70 compared with that of crystalline Nb 3 Sn, a commercially used high-field superconductor More
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001113
EISBN: 978-1-62708-162-7
... kG). The obvious drawback for these materials is the need for liquid-helium cooling. Yet for some applications, especially detectors, the low temperature is necessary to reduce thermal noise. In this case a high T c is not a major advantage. Applications of Thin-Film Superconductors...
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Published: 01 January 1990
Fig. 2(b) Electrical resistance as a function of temperature for the first high-temperature ceramic (oxide-containing barium) superconductors discovered by Bednorz and Muller in 1986. Source: Ref 10 More
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001111
EISBN: 978-1-62708-162-7
... formed with niobium or vanadium have the best superconducting properties ( 3(a) and Fig. 3(b) ). Nb 3 Ge held the high critical temperature ( T c ) record for 20 years at 23 K and has the highest critical temperature of the metal, or so-called low-temperature, superconductors. The high- T c...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001110
EISBN: 978-1-62708-162-7
... systems incorporating NbTi superconducting materials. The properties required in a successful stabilizing material are: High electrical and thermal conductivity High heat capacity Good mechanical strength at cryogenic temperature Good adherence to the superconductor Good ductility...
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Published: 01 January 1990
Fig. 20 Unreacted NbSn high-current density composite superconductor wire produced for high-field magnet application using tin-core MJR process. (a) 100× bright field illumination (B.F.). (b) 1000× differential interference contrast (D.I.C.). The 60 subelements in the 0.6 mm (0.024 in.) diam More
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Published: 01 January 1990
Fig. 1 Examples of some of the many nonferrous alloys and special-purpose materials described in this Volume. Shown clockwise from the upper left-hand corner are: (1) a cross-section of a multifilament Nb 3 Sn superconducting wire, 1000×; (2) a high-temperature ceramic YBa 2 Cu 3 More
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004008
EISBN: 978-1-62708-185-6
... provide sufficient heat to raise the temperature of the superconductor above T c ; this increase in temperature causes the normally high resistance to return. Commercial superconductors are designed to prevent and/or control the change to the nonsuperconducting state. Copper and aluminum are usually...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0005549
EISBN: 978-1-62708-162-7
...-concentration factor FL Lorentz force HPLT high-pressure low-temperature Ky precracked Charpy F ty tensile yield strength Ko distribution coefficient at equilibrium fee face-centered cubic compaction K I crystalline anisotropy constant FCGR fatigue crack growth rate HR Rockwell hardness (requires scale KEK...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003062
EISBN: 978-1-62708-200-6
... and various active devices. Glass insulators, ceramic heater substrates for microelectronics packaging, are all primarily used in this mode. Often, however, the ceramic material must exhibit other important characteristics, including temperature, corrosion and environmental stability, high mechanical strength...