Engineered Flux Pinning Centers In Bscco Tbcco And Ybco Superconductors

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Engineered Flux Pinning Centers In Bscco Tbcco And Ybco Superconductors

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Author :
language : en
Publisher:
Release Date : 1999

Engineered Flux Pinning Centers In Bscco Tbcco And Ybco Superconductors written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with categories.

A method of preparing a high temperature superconductor. A method of preparing a superconductor includes providing a powdered high temperature superconductor and a nanophase material. These components are combined to form a solid compacted mass with the material disposed in the polycrystalline high temperature superconductor. This combined mixture is rapidly heated, forming a dispersion of nanophase size particles without a eutectic reaction. These nanophase particles can have a flat plate or columnar type morphology.

Flux Pinning In Superconductors

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Author : Teruo Matsushita
language : en
Publisher: Springer Nature
Release Date : 2022-08-31

Flux Pinning In Superconductors written by Teruo Matsushita and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-08-31 with Technology & Engineering categories.

This book covers the flux pinning mechanisms and properties and the electromagnetic phenomena caused by the flux pinning common for metallic, high-Tc and MgB2 superconductors. The condensation energy interaction known for normal precipitates or grain boundaries and the kinetic energy interaction proposed for artificial Nb pins in Nb-Ti, etc., are introduced for the pinning mechanism. Summation theories to derive the critical current density are discussed in detail. Irreversible magnetization and AC loss caused by the flux pinning are also discussed. The loss originally stems from the ohmic dissipation of normal electrons in the normal core driven by the electric field induced by the flux motion. The influence of the flux pinning on the vortex phase diagram in high Tc superconductors is discussed, and the dependencies of the irreversibility field are also described on other quantities such as anisotropy of superconductor, specimen size and electric field strength. Recent developments of critical current properties in various high-Tc superconductors and MgB2 are introduced. The 3rd edition has been thoroughly updated, with a new chapter on critical state model. The mechanism of irreversible properties is discussed in detail. The author provides calculations of pinning loss by the equation of motion of flux lines in the pinning potential and hysteresis loss. The readers will learn why the resultant loss is of hysteresis type in spite of such mechanism. This book aims for graduate students and researchers studying superconductivity as well as engineers working in electric utility industry.

Enhanced Flux Pinning To High Fields In Ybco And Ybco Ag Superconductors

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Author : Namburi Devendra Kumar
language : de
Publisher: LAP Lambert Academic Publishing
Release Date : 2012-08

Enhanced Flux Pinning To High Fields In Ybco And Ybco Ag Superconductors written by Namburi Devendra Kumar and has been published by LAP Lambert Academic Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-08 with categories.

Bulk REBa2Cu3O7-δ (REBCO, RE stands for Rare-Earth) superconductors find a large number of applications as levitation platforms, vibration dampers, fault current limiters, magnetic shields, microwave cavities and many more. It is necessary for such applications that the material is processed into required shapes and possesses microstructures that support high current densities (Jc) up to large applied magnetic fields. Details of the development of a novel process called Preform Optimized Infiltration Growth Process (POIGP) are discussed. POIGP enables fabrication of uniformly high Jc REBCO and REBCO/Ag superconducting composites with good homogeneity in the distribution of RE2BaCuO5 inclusions in the REBa2Cu3O7-δ matrix. The work described in this book points to the nature and scale of defects required for improving the field dependence of Jc in REBCO products. The defect structure observed in the matrix of YBa2Cu3O7-δ includes widespread, nano-sized, twin variants. Crossing nano-twins are observed when Y2BaCuO5 inclusions are in close proximity in the YBa2Cu3O7-δ. The observed defect spacing and densities account for the uniformly high current densities observed to high fields.

Flux Pinning And Ac Loss Studies On Ybco Coated Conducters

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Author : Mariappan Parans Paranthaman
language : en
Publisher:
Release Date : 2007

Flux Pinning And Ac Loss Studies On Ybco Coated Conducters written by Mariappan Parans Paranthaman and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Electric currents, Alternating categories.

Major advances have been made in the last 18 years in high-temperature superconductor (HTS) research and development, resulting in increased use of HTS materials in commercial and pre-commercial electric-power applications. This new and important book addresses the issues related to flux pinning, AC losses and thick YBCO film growth. Written by top most scientists in the world, it presents the current status and issues related to YBCO coated conductors and the need for further fundamental materials science work in YBCO coated conductor. This will be a useful handbook for years to come.

Vortex Physics And Flux Pinning

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Author : A. V. Narlikar
language : en
Publisher: Nova Publishers
Release Date : 2005

Vortex Physics And Flux Pinning written by A. V. Narlikar and has been published by Nova Publishers this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Flux pinning categories.

Studies of High Temperature Superconductors, Volume 48 - Vortex Physics & Flux Pinning

Official Gazette Of The United States Patent And Trademark Office

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Author : United States. Patent and Trademark Office
language : en
Publisher:
Release Date : 1999

Official Gazette Of The United States Patent And Trademark Office written by United States. Patent and Trademark Office and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Patents categories.

Method And Composition For Improving Flux Pinning And Critical Current In Superconductors

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Author :
language : en
Publisher:
Release Date : 1995

Method And Composition For Improving Flux Pinning And Critical Current In Superconductors written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with categories.

Superconducting materials and methods of forming superconducting materials are disclosed. Highly oxidized superconductors are heated at a relatively high temperature so as to release oxygen, which migrates out of the material, and form a non-superconducting phase which does not diffuse out of grains of the material. The material is then reoxidized at a lower temperature, leaving the non-superconducting inclusions inside a superconducting phase. The non-superconducting inclusions act as pinning centers in the superconductor, increasing the critical current thereof.

The Enhancement Of Flux Pinning In Ybco Superconductors Using Fast Neutron Irradiation

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Author : May-Ling M. Li
language : en
Publisher:
Release Date : 2011

The Enhancement Of Flux Pinning In Ybco Superconductors Using Fast Neutron Irradiation written by May-Ling M. Li and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with categories.

Flux Pinning In Ybco Superconductor

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Author : David Bostonian Jan
language : en
Publisher:
Release Date : 2002

Flux Pinning In Ybco Superconductor written by David Bostonian Jan and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Ferromagnetic materials categories.

Flux Pinning In Yttrium Barium Copper Oxide Coated Conductors

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Author : Zhijun Chen
language : en
Publisher:
Release Date : 2008

Flux Pinning In Yttrium Barium Copper Oxide Coated Conductors written by Zhijun Chen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with categories.