Study of Electromagnetic Properties of Zr-doped REBa2Cu3O7-X Coated Conductors Fabricated by Metal Organic Chemical Vapor Deposition Over a Wide Range of Temperature & Magnetic Fields PDF Download
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Author: Yao Yao
Publisher:
ISBN:
Category : Materials engineering
Languages : en
Pages :
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Book Description
Zr-doped REBa2Cu3O7-x (REBCO and RE = Gd, Y in this thesis) coated conductors fabricated by the Metal Organic Chemical Vapor Deposition (MOCVD) method has demonstrated excellent in-field performance at 77K and a low magnetic field in previous research. However, the most important and promising applications of HTS coated conductors requires excellent in-field performance at various cryogenic temperatures between 77K and 20K, or even lower temperatures, with a high external magnetic field. In this thesis, REBCO coated conductor samples with different Zr contents (0%-15%) fabricated by the MOCVD method were systematically studied in a series of electromagnetic measurements at a wide range of temperatures and fields. Interesting pinning effects of various Zr-doping levels were observed across the temperature and field range. In order to interpret these pinning phenomena, microstructural analysis was done using SEM and TEM methods to reveal the influence of temperature, field and chemical composition on the performance and microstructure of Zr-doped REBCO coated conductors.
Author: Yao Yao
Publisher:
ISBN:
Category : Materials engineering
Languages : en
Pages :
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Book Description
Zr-doped REBa2Cu3O7-x (REBCO and RE = Gd, Y in this thesis) coated conductors fabricated by the Metal Organic Chemical Vapor Deposition (MOCVD) method has demonstrated excellent in-field performance at 77K and a low magnetic field in previous research. However, the most important and promising applications of HTS coated conductors requires excellent in-field performance at various cryogenic temperatures between 77K and 20K, or even lower temperatures, with a high external magnetic field. In this thesis, REBCO coated conductor samples with different Zr contents (0%-15%) fabricated by the MOCVD method were systematically studied in a series of electromagnetic measurements at a wide range of temperatures and fields. Interesting pinning effects of various Zr-doping levels were observed across the temperature and field range. In order to interpret these pinning phenomena, microstructural analysis was done using SEM and TEM methods to reveal the influence of temperature, field and chemical composition on the performance and microstructure of Zr-doped REBCO coated conductors.
Author: Tuo Shi
Publisher:
ISBN:
Category : High temperature superconductors
Languages : en
Pages : 192
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Book Description
Author: Yangxin Zhang
Publisher:
ISBN:
Category : High temperature superconductors
Languages : en
Pages : 156
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Book Description
Author: V. Selvamanickam
Publisher:
ISBN:
Category :
Languages : en
Pages : 12
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Book Description
This is a new 3-year program to build on the success of the previously funded AFOST Contract FA9550-04-C-0020. In the last year of this program, we made major progress in both objectives of the program. We fabricated films of different thickness by our standard MOCVD processes and worked with our collaborators (ORNL, LANL, FSU,) to understand the microstructural reasons for the Ic performance using a variety of advanced characterization tools. We then modified our MOCVD process using a multipass technique to improve Ic performance in thick films. We modified rare-earth composition to improve critical current performance. This report addresses progress made in the first 3 months of the new program.
Author: Bowen Li
Publisher: Springer
ISBN: 3030057496
Category : Technology & Engineering
Languages : en
Pages : 782
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Book Description
This collection gives broad and up-to-date results in the research and development of materials characterization and processing. Topics covered include characterization methods, ferrous materials, non-ferrous materials, minerals, ceramics, polymer and composites, powders, extraction, microstructure, mechanical behavior, processing, corrosion, welding, solidification, magnetic, electronic, environmental, nano-materials, and advanced materials The book explores scientific processes to characterize materials using modern technologies, and focuses on the interrelationships and interdependence among processing, structure, properties, and performance of materials.
Author: Jack Ekin
Publisher: Oxford University Press
ISBN: 0198570546
Category : Science
Languages : en
Pages : 704
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Book Description
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Author: Chan-Joong Kim
Publisher: Springer
ISBN: 981136768X
Category : Technology & Engineering
Languages : en
Pages : 251
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Book Description
This book introduces the physical principles behind levitation with superconductors, and includes many examples of practical magnetic levitation demonstrations using superconducting phenomena. It features more than twenty examples of magnetic levitation in liquid nitrogen using high temperature superconductors and permanent magnets, all invented by the author. The book includes the demonstration of suspension phenomenon induced by magnetic flux pinning as well as magnetic levitation by the Meissner effect. It shows how superconducting magnetic levitation and suspension phenomena fire the imagination and provide scientific insight and inspiration. This book will be a useful experimental guide and teaching resource for those working on superconductivity, and a fascinating text for undergraduate and graduate students.
Author: H. Weinstock
Publisher: Springer Science & Business Media
ISBN: 9401707529
Category : Technology & Engineering
Languages : en
Pages : 695
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Book Description
This book, in essence the proceedings of a NATO Advanced Study Institute with the same title, is designed to provide in-depth coverage of many, but not all, of the major current applications of superconductivity, and of many that still are being developed. It will be of value to scientists and engineers who have interests in the research and production aspects of the technology, as well as in the applications themselves. The ftrst three chapters (by Clarke, Vrba and Wikswo) are devoted to an understanding of the principles, fabrication and uses of SQUID magnetometers and gradiometers, with the greatest emphasis on biomagnetism and nondestructive evaluation (NDE). For the most part, traditional low-temperature superconductor (LTS) SQUIDs are used, but particularly for NDE, high-temperature superconductor (HTS) SQUIDs are proving useful and often more convenient. The succeeding three chapters (by Przybysz, Likharev and Chaloupka) cover broader aspects of superconducting electronics. The ftrst two of these deal primarily with digital L TS circuits, while the third discusses in great detail passive component applications using HTS materials. Currently, HTS ftlters are undergoing intense J3-site testing at cellular telephone base stations. While it is clear that HTS ftlters outperform conventional ftlters in reducing signal loss and allowing for more channels in a given bandwidth, it isn't yet certain that the cellular telephone industry sees sufficient economic beneftts to make a ftrm decision to use HTS ftlters universally in its systems. If this application is generally adapted, the market for these ftlters should be quite large.
Author: Paolo Mele
Publisher: Springer Nature
ISBN: 3030233030
Category : Technology & Engineering
Languages : en
Pages : 369
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Book Description
This book provides readers with a comprehensive overview of the science of superconducting materials. It serves as a fundamental information source on the actual techniques and methodologies involved in superconducting materials growth, characterization and processing. This book includes coverage of several categories of medium and high-temperature superconducting materials: cuprate oxides, borides, and iron-based chalcogenides and pnictides. Provides a single-source reference on superconducting materials growth, characterization and processing; Bridges the gap between materials science and applications of superconductors; Discusses several categories of superconducting materials such as cuprate oxides, borides, and iron-based chalcogenides and pnictides; Covers synthesis, characterization, and processing of superconducting materials, as well as the nanoengineering approach to tailor the properties of the used materials at the nanoscale level.
Author: Alexander V Zlobin
Publisher:
ISBN: 9781013271359
Category : Science
Languages : en
Pages : 460
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Book Description
This open access book is written by world-recognized experts in the fields of applied superconductivity and superconducting accelerator magnet technologies. It provides a contemporary review and assessment of the experience in research and development of high-field accelerator dipole magnets based on Nb3Sn superconductor over the past five decades. The reader attains clear insight into the development and the main properties of Nb3Sn composite superconducting wires and Rutherford cables, and details of accelerator dipole designs, technologies and performance. Special attention is given to innovative features of the developed Nb3Sn magnets. The book concludes with a discussion of accelerator magnet needs for future circular colliders.; Broadens our understanding of design and performance limits of high-field Nb3Sn accelerator magnets for a future very high energy hadron collider Offers beginners a concise overview of the relevant design concepts for a new generation of superconducting accelerator magnets based on Nb3Sn superconductor Illustrates the complete process of accelerator magnet design and fabrication Provides a contemporary review and assessment of the past experience with Nb3Sn high-field dipole accelerator magnets Identifies the main open R&D issues for Nb3Sn high-field dipole magnets This work was published by Saint Philip Street Press pursuant to a Creative Commons license permitting commercial use. All rights not granted by the work's license are retained by the author or authors.
