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Processing Considerations For Adding Nanometer Scale Oxides To Enhance Flux Pinning In High Temperature Superconductors
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Book Synopsis Processing Considerations for Adding Nanometer-scale Oxides to Enhance Flux Pinning in High-temperature Superconductors by :
Download or read book Processing Considerations for Adding Nanometer-scale Oxides to Enhance Flux Pinning in High-temperature Superconductors written by and published by . This book was released on 1997 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: Several nanometer-scale oxide inclusions were added to Bi2Sr2CaCu2O(subscript x) high-temperature superconductors to determine their effectiveness in creating intragranular flux-pinning sites. Powder pellets were fabricated and heat treated by partial-melt processing. Effects of the additives on melting response, superconducting properties, and microstructural development were examined. Al2O3 additions exhibited the most promise for forming stable pinning centers, ZrO2 and SnO2 additions were moderately promising, TiO2, Fe2O3, and ZnO additions were less promising, and Y2O3 additions destroyed superconductivity.
Author :U. Balu Balachandran Publisher :Springer Science & Business Media ISBN 13 :1475790562 Total Pages :1085 pages Book Rating :4.4/5 (757 download)
Book Synopsis Advances in Cryogenic Engineering Materials by : U. Balu Balachandran
Download or read book Advances in Cryogenic Engineering Materials written by U. Balu Balachandran and published by Springer Science & Business Media. This book was released on 2013-11-21 with total page 1085 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Since 1954 Advances in Cryogenic Engineering has been the archival publication of papers presented at the biennial CEC/ICMC conferences. Advances in Cryogenic Engineering resides throughout the world in the libraries of most institutions that conduct research and development in cryogenic engineering and applied superconductivity. The publication includes invited, unsolicited, and government-sponsored research papers in the research areas of superconductors and structural materials for cryogenic applications. All of the papers published must (1) be presented at the conference, (2) pass the review process, and (3) report previously unpublished theoretical studies, reviews, or measurements of material properties at low temperatures." Victoria A. Bardos, Managing Editor
Book Synopsis Addition of Nanoparticle Dispersions to Enhance Flux Pinning of the YBa2Cu3O7-x Superconductor by :
Download or read book Addition of Nanoparticle Dispersions to Enhance Flux Pinning of the YBa2Cu3O7-x Superconductor written by and published by . This book was released on 2004 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: After the discovery of type-II HTS, focus is to develop these materials for power applications. One of the problems has been that magnetic flux is not completely expelled but rather contained within magnetic fluxons, whose motion stops larger supercurrents. It's known that the critical current of these materials can be enhanced by incorporating a high density of extended defects to act as pinning centres for the fluxons. YBa2Cu3O7 (YBCO or 123) is the most promising material for such applications at higher temperatures. Pinning is optimized when the size of the defects approaches the superconducting coherence length (̃2-4nm for YBCO at temperatures ≤ 77 K) and when the areal number density of defects is of the order of (H/2) x 1011 cm-2, where H is the applied magnetic field in tesla. Such a high density has been hard to get by material-processing methods that keep a nanosize defect, except through irradiation. Here we report a method for achieving a dispersion of ̃8-nm-sized nanoparticles in YBCO with a high number density, which increases critical current (at 77 K) by a factor of two to three for high magnetic fields.
Book Synopsis Advances in Cryogenic Engineering Materials by : Klaus D. Timmerhaus
Download or read book Advances in Cryogenic Engineering Materials written by Klaus D. Timmerhaus and published by Springer. This book was released on 1998 with total page 738 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contributors describe innovations in structural and cryocooler materials and in superconductors, featuring discussions on: mechanical and physical properties nickel-based alloys, austentic alloys and steels; development, properties, and testing of insulation materials and coatings; polymers, composites, and epoxies; properties and processing of aluminum and copper alloys; thermal and mechanical properties; applications and processing of high-temperature superconductors and coated conductors; and low-temperature superconductors (NbTi and A-15 compounds, ac losses, stability, current distribution, and coupling currents in Rutherford cables). Annotation copyrighted by Book News, Inc., Portland, OR
Book Synopsis Flux Pinning and Connectivity in Polycrystalline High-temperature Superconductors by : Daniël Cornelis van der Laan
Download or read book Flux Pinning and Connectivity in Polycrystalline High-temperature Superconductors written by Daniël Cornelis van der Laan and published by . This book was released on 2004 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Electrical & Electronics Abstracts by :
Download or read book Electrical & Electronics Abstracts written by and published by . This book was released on 1997 with total page 2304 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis 100 Years of Superconductivity by : Horst Rogalla
Download or read book 100 Years of Superconductivity written by Horst Rogalla and published by Taylor & Francis. This book was released on 2011-11-11 with total page 866 pages. Available in PDF, EPUB and Kindle. Book excerpt: Even a hundred years after its discovery, superconductivity continues to bring us new surprises, from superconducting magnets used in MRI to quantum detectors in electronics. 100 Years of Superconductivity presents a comprehensive collection of topics on nearly all the subdisciplines of superconductivity. Tracing the historical developments in supe
Book Synopsis The Oxford Handbook of Small Superconductors by : A. V. Narlikar
Download or read book The Oxford Handbook of Small Superconductors written by A. V. Narlikar and published by Oxford University Press. This book was released on 2017 with total page 641 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mesoscopic superconductors achieve a level of smallness that reveals the dominance of strange quantum effects. In a world driven by the miniaturization of electronic device technology, small superconductors acquire great relevance and timeliness for the development of ground breaking novel quantum devices.
Book Synopsis Functional Materials by : S. Banerjee
Download or read book Functional Materials written by S. Banerjee and published by Elsevier. This book was released on 2011-12-09 with total page 731 pages. Available in PDF, EPUB and Kindle. Book excerpt: Functional materials have assumed a very prominent position in several high-tech areas. Such materials are not being classified on the basis of their origin, nature of bonding or processing techniques but are classified on the basis of the functions they can perform. This is a significant departure from the earlier schemes in which materials were described as metals, alloys, ceramics, polymers, glass materials etc. Several new processing techniques have also evolved in the recent past. Because of the diversity of materials and their functions it has become extremely difficult to obtain information from single source. Functional Materials: Preparation, Processing and Applications provides a comprehensive review of the latest developments. Serves as a ready reference for Chemistry, Physics and Materials Science researchers by covering a wide range of functional materials in one book Aids in the design of new materials by emphasizing structure or microstructure – property correlation Covers the processing of functional materials in detail, which helps in conceptualizing the applications of them
Book Synopsis High-Temperature Superconductors: Materials, Properties, and Applications by : Rainer Wesche
Download or read book High-Temperature Superconductors: Materials, Properties, and Applications written by Rainer Wesche and published by Springer Science & Business Media. This book was released on 2013-11-27 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: The discovery by J. G. Bednorz and K. A. Mtllier in 1986 that the superconducting state can exist in oxides at temperatures above 30 K stimulated research in the field of superconductivity and opened up a new field of research. Within a few years a large number of cuprate superconductors with transition temperatures well above the boiling point of liquid nitrogen have been found. The possibility of using liquid nitrogen as coolant re-stimulated interest in power applications of supercon ductivity. In this book an overview of the known high-Te superconductors and their physical properties is presented. Aspects related to conductor fabrication and high-current applications are emphasised. The material should be suitable for use in graduate level courses on superconductivity. Researchers in the field may profit from the large number of tables and references describing its status at the end of 1997. An introduction to high-To superconductivity must be based on the fundamental physical principles of normal-state electrical conductivity and the well-known characteristics of conventional superconductors. In Chapter 2 this background is provided. Crystal structures, anisotropic properties and general trends of the critical temperatures of the cuprate superconductors are described in Chapters 3 and 4. The processing of superconductor powders addressed in Chapter 5 affects considerably the current-carrying capacity of high-T. wires. In Chapter 6 several fabrication techniques for superconducting wires are described. In addition, the factors limiting the transport critical currents ofhigh-Te wires are discussed.
Book Synopsis Cryogenic Process Engineering by : Klaus D. Timmerhaus
Download or read book Cryogenic Process Engineering written by Klaus D. Timmerhaus and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 614 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cryogenics, a term commonly used to refer to very low temperatures, had its beginning in the latter half of the last century when man learned, for the first time, how to cool objects to a temperature lower than had ever existed na tu rally on the face of the earth. The air we breathe was first liquefied in 1883 by a Polish scientist named Olszewski. Ten years later he and a British scientist, Sir James Dewar, liquefied hydrogen. Helium, the last of the so-caBed permanent gases, was finally liquefied by the Dutch physicist Kamerlingh Onnes in 1908. Thus, by the beginning of the twentieth century the door had been opened to astrange new world of experimentation in which aB substances, except liquid helium, are solids and where the absolute temperature is only a few microdegrees away. However, the point on the temperature scale at which refrigeration in the ordinary sense of the term ends and cryogenics begins has ne ver been weB defined. Most workers in the field have chosen to restrict cryogenics to a tem perature range below -150°C (123 K). This is a reasonable dividing line since the normal boiling points of the more permanent gases, such as helium, hydrogen, neon, nitrogen, oxygen, and air, lie below this temperature, while the more common refrigerants have boiling points that are above this temperature. Cryogenic engineering is concerned with the design and development of low-temperature systems and components.
Download or read book INIS Atomindex written by and published by . This book was released on 1995 with total page 718 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Crystal Growth from High-temperature Solutions by : Dennis Elwell
Download or read book Crystal Growth from High-temperature Solutions written by Dennis Elwell and published by . This book was released on 1975 with total page 634 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis International Aerospace Abstracts by :
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1996 with total page 940 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ceramic Abstracts written by and published by . This book was released on 2000 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Critical Currents in Superconductors by : A. M. Campbell
Download or read book Critical Currents in Superconductors written by A. M. Campbell and published by . This book was released on 1972 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Superconductivity by : Charles P. Poole
Download or read book Superconductivity written by Charles P. Poole and published by Elsevier. This book was released on 2010-07-20 with total page 671 pages. Available in PDF, EPUB and Kindle. Book excerpt: Superconductivity, 2E is an encyclopedic treatment of all aspects of the subject, from classic materials to fullerenes. Emphasis is on balanced coverage, with a comprehensive reference list and significant graphicsfrom all areas of the published literature. Widely used theoretical approaches are explained in detail. Topics of special interest include high temperature superconductors, spectroscopy, critical states, transport properties, and tunneling.This book covers the whole field of superconductivity from both the theoretical and the experimental point of view. Comprehensive coverage of the field of superconductivity Very up-to date on magnetic properties, fluxons, anisotropies, etc. Over 2500 references to the literature Long lists of data on the various types of superconductors
