Applications of High-Tc Superconductivity

270 Pages·2011·31.14 MB·english

by  Luiz A.M. (Ed.)

APPLICATIONS OF HIGH-TC
SUPERCONDUCTIVITY

Edited by Adir Moysés Luiz
Applications of High-Tc Superconductivity
Edited by Adir Moysés Luiz

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First published June, 2011
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Applications of High-Tc Superconductivity, Edited by Adir Moysés Luiz
p. cm.
ISBN 978-953-307-308-8
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Contents

Preface IX
Chapter 1 Overview of Possible Applications
of High Tc Superconductors 1
Adir Moysés Luiz
Chapter 2 Some Contemporary and Prospective Applications
of High Temperature Superconductors 15
Z. Güven Özdemir, Ö. Aslan Çataltepe and Ü. Onbaşlı
Chapter 3 Superconductivity Application in Power System 45
Geun-Joon Lee
Chapter 4 Current Distribution and Stability of a Hybrid
Superconducting Conductors Made of LTS/HTS 75
Yinshun Wang
Chapter 5 Magnetic Relaxation - Methods for Stabilization
of Magnetization and Levitation Force 97
Boris Smolyak, Maksim Zakharov and German Ermakov
Chapter 6 3-D Finite-Element Modelling of a Maglev System
using Bulk High-Tc Superconductor and its Application 119
Guang-Tong Ma, Jia-Su Wang, and Su-Yu Wang
Chapter 7 Epitaxial Oxide Heterostructures for
Ultimate High-Tc Quantum Interferometers 147
Michael Faley
Chapter 8 Thermophysical Properties of
Bi-based High-Tc Superconductors 177
Asghari Maqsood and M. Anis-ur-Rehman
VI Contents

Chapter 9 Chemical Solution Deposition Based
Oxide Buffers and YBCO Coated Conductors 193
M. Parans Paranthaman
Chapter 10 Superconducting Properties of Graphene
Doped Magnesium Diboride 201
Xun Xu, Wenxian Li, Xiaolin Wang and Shi-Xue Dou
Chapter 11 Preparation of Existing and Novel Superconductors
using a Spatial Composition Spread Approach 219
Kevin C. Hewitt, Robert J. Sanderson and Mehran Saadat
Chapter 12 Superhard Superconductive Composite Materials
Obtained by High-Pressure-High-Temperature Sintering 237
Sergei Buga, Gennadii Dubitsky, Nadezhda Serebryanaya,
Vladimir Kulbachinskii and Vladimir Blank

Preface

The history of superconductivity is full of theoretical challenges and practical devel-
opments. Superconductivity was discovered in 1911 by Kamerlingh Onnes. About 75
years after this breakthrough, in 1986, it has been synthesized by Bednorz and Müller,
an oxide superconductor with critical temperature (Tc) approximately equal to 35 K.
This new breakthrough has given a tremendous impetus to this fascinating subject.
Since this discovery, there are a great number of laboratories all over the world in-
volved in research of superconductors with high Tc values, the so-called “high-Tc su-
perconductors”(HTS). The discovery of a room temperature superconductor has been
a long-standing dream of many scientists. The technological and practical applications
of such discovery should be tremendous.
This book is a collection of works intended to study only practical applications of HTS
materials. You can find here a great number of research on actual applications of HTS
as well as possible future applications of HTS. Depending on the strength of the ap-
plied magnetic field, applications of HTS may be divided in two groups: large scale
applications (large magnetic fields) and small scale applications (small magnetic
fields).
In this book there are 12 chapters reporting fascinating studies about practical applica-
tions of HTS. In some chapters, you will also find many research on the synthesis of
special materials that may be useful in practical applications of HTS.
The plan of this book is:
In chapters 1 and 2 are presented some interesting overviews about practical applica-
tions of HTS.
Chapter 3 contains a discussion concerning practical applications of superconductivity
to electric power systems.
Chapter 4 is a discussion about current distribution and stability of a hybrid system
containing a high-Tc superconductor and a low-Tc superconductor.
X Preface

Chapter 5 presents the study concerning an important question of the stabilization of
systems submitted to magnetic levitation forces.
Chapter 6 discusses a 3-D finite-element modeling of a maglev system.
Chapter 7 contains a research about quantum interferometers using high-Tc epitaxial
oxide heterostructures.
Chapters 8, 9, 10, 11 and 12 are research about properties of high-Tc superconductors
and experimental research about the synthesis of HTS materials with potential
important applications.
The future of practical applications of HTS materials is very exciting. I hope that this
book will be useful in the research activities of new radical solutions for practical
applications of HTS materials and that it will encourage further experimental research
of HTS materials with potential technological applications.

Adir Moysés Luiz
Instituto de Física, Universidade Federal do Rio de Janeiro
Brazil