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3 edition of Glass formability of high Tc BI-SR-CA-CU-O superconductors found in the catalog.

Glass formability of high Tc BI-SR-CA-CU-O superconductors

Glass formability of high Tc BI-SR-CA-CU-O superconductors

final report

by

  • 72 Want to read
  • 38 Currently reading

Published by National Aeronautics and Space Administration, National Technical Information Service, distributor in [Washington, DC, Springfield, Va.? .
Written in English

    Subjects:
  • Crystallization.,
  • Superconductors.

  • Edition Notes

    Statementby William F. Kaukler.
    SeriesNASA-CR -- 190309., NASA contractor report -- NASA CR-190309.
    ContributionsUnited States. National Aeronautics and Space Administration.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL15363983M

    This volume presents a compilation of state-of-the-art understanding of ceramic corrosion. It reveals areas of deficiency and it suggests future directions based on the studies of 33 leaders in the field. Significant progress has been made in defining corrosion processes in ceramic materials. New theoretical approaches and improved analytical techniques have served to unify concepts developed 5/5(1). Zhao Zhongxian (simplified Chinese: 赵忠贤; traditional Chinese: 趙忠賢; pinyin: Zhào Zhōngxián; born 30 January ) is a Chinese physicist. He is internationally known for his studies on High-temperature superconductivity (HTS). He was a member of the 8th, 10th, 11th National Committee of the Chinese People's Political Consultative : Janu (age 78), Xinmin, . High-temperature ceramic superconductors In Bednorz and Müller discovered the high temperature superconductivity by predicting that the JT (Jahn–Teller) distortion plays an important role in lanthanum copper oxides (LSCO) and thus the electron–lattice interactions are Cited by: 1. Get this from a library! Physics and materials science of high temperature superconductors. [Ram Kossowsky; Siegfried Methfessel; D Wohlleben; North Atlantic Treaty Organization. Scientific Affairs Division.;] -- Topics include critical examinations of the ramifications of G-L Theory and the BSC approach, implications of microstructural and microchemical features to flux-lattice stability.

    substrate- Among the three major types of high Tc materials. R-Ba-Cu Bi-Sr-Ca-Cu-O and Tl-Ba-Ca-Cu-O (the compounds will be labeled by the first element and the cation ratio in the given order and R represents Y and rare earth elements), only Bi and Bi superconductors have been fabricated by the powder-in-mbe method with high Jc.


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Glass formability of high Tc BI-SR-CA-CU-O superconductors Download PDF EPUB FB2

We have made glasses with starting batch stoichiometries (Bi-Sr-Ca-Cu)and by a melt-quench process. Glasses thus formed superconduct upon suitable heat treatment due to. X-ray diffraction patterns of as-quenched (a) and heat-treated (b) sample No. 3 glass-ceramics. Nasu et aL / High-T, superconduction of Bi-Sr-Ca-Cu-O in (a), thus it is considered amorphous.

Similar patterns were observed for the other compositions, thus each of the compositions can be considered to be by: Information on Cu 3d and O 2p states obtained from the study of the Cu Lα and O K α x-ray emission bands are presented for several high Tc superconductors.

The spectra for YBa 2 Cu 3 O 7 are discussed in some detail in relation to other high energy spectroscopies.

select deposition thick film patterns of the high-tc superconducting y-ba-cu-o and bi-sr-ca-cu-o systems on ceramic substrates Book chapter Full text access DEPOSITION THICK FILM PATTERNS OF THE HIGH-T c SUPERCONDUCTING Y-Ba-Cu-O AND Bi-Sr-Ca-Cu-O.

Keywords: crystallisation, glass-ceramics, superconductivity I. INTRODUCTION 3. RESULTS AND DISCUSSION Materials in a Bi-Sr-Ca-Cu-O system quenched from a melt form an amorphous solid and after an appropriate annealing they crystallise and may form granular superconductors [1].

Mechanisms of crystallisation in this system are still by: 1. The six compositions from the system Bi-Sr-Ca-Cu-O examined in this study are shown in Table 1 and are plotted on a lriaxial diagram in Fig.

1 with Bi and CuO on two comers and the total of CaO. Journals & Books; Register Sign in. 76, Issue 8, NovemberPages Creation of holes and formation of high-T c phase in Bi(Pb) Sr Ca Cu O superconductors.

Author links open overlay panel T.K Bansal Sadhana Bansal R.G Mendiratta. Show more. https: Creation of holes and formation of high-T c phase in Bi(Pb) Cited by: 7. A number of promising glass forming compositions of high Tc superconducting Ba-Sr-Ca-Cu-O (BSCCO) materials were evaluated for their glass-ceramic crystallization ability.

The anomalously high superconducting transition temperature (Tc) is considered to be related to the anomalous features near the Mott transition in a 2D system [4]. Because both hole-doped and electron-doped systems exhibit superconductivity, it is natural to consider that the mechanism of high-Tc superconductivity is included inFile Size: KB.

GLASS FORMABILITY OF HIGH TC BI-SR-CA-CU-O SUPERCONDUCTORS Final Report NASA Grant NA_ by: regards the Glass Formability based on cooling rates from quenches.

It is in this paper that evaluation of It is also a better high Tc glass-ceramic. This indicates that extra Cat both enhances glass formation and high Tc properties in the. Description; Chapters; Supplementary; High T c oxide superconductors such as Bi(Pb)-Sr-Ca-Cu-O (BSCCO) and Y-Ba-Cu-O (YBCO) systems are usually fabricated by sintering given mixtures of raw materials.

Generally, sintering processing takes a longer heating time and the products are mechanically low strength and cannot be formed into complex shapes such as a coil, a curved fine tube or a fine rod. Thermal conductivity has been measured on Bi-Sr-Ca-Cu-O high-Tc superconductors down to 70 mK. Samples included a sintered specimen as well as two hot-pressed samples cut from the same ingot.

High-temperature superconductors (abbreviated high-T c or HTS) are operatively defined as materials that behave as superconductors at temperatures above nearly °C ( °F). This is in fact the lowest temperature reachable by liquid nitrogen, one of the simplest coolants in cryogenics.

All superconducting materials known at ordinary pressures currently work far below ambient. Get this from a library. Glass formability of high Tc BI-SR-CA-CU-O superconductors: final report.

[William F Kaukler; United States. National Aeronautics and Space Administration.]. This book provides a comprehensive presentation of all types of HTSC and includes a broad overview on HTSC computer simulations and modeling.

Especial attention is devoted to the Bi-Sr-Ca-Cu-O and Y-Ba-Cu-O families that today are the most perspective for applications. The book includes a great number of illustrations and : Paperback. Wong-Ng has authored a handbook chapter on "Phase Diagrams" [89], and other book chapters on "Structure of Bi-containing materials" [90], and on "Superconductors: Structures and Applications" [91].

Abstract. The escalation of thermochemical research in the s became a main engine in the search for yet new sorts of ceramic superconducting material, generally called the high-T c superconductors (HTSC), with a transition temperature (T c) far above the boiling temperature of nitrogen (77 K).Although the research boom has gradually expired, the commercial applications Author: Takayuki Komatsu, Jaroslav Šesták.

Buy Superconducting Glass-ceramics In Bi-sr-ca-cu Fabrication And Its Application by Yasuhisa Abe from Waterstones today. Click and Collect from your local Waterstones or get FREE UK delivery on orders over £Author: Yasuhisa Abe. Co-decomposition of mixed nitrates of Bi, Pb, Sr, Ca and Cu around °C under low oxygen pressure led to the formation of a high-T c superconducting phase of Bi(Pb)-Sr-Ca-Cu-O with T c (zero) at K.A sample prepared by a conventional solid state reaction method under low oxygen pressure also showed the superconducting transition at K.

X-ray powder diffraction and magnetic Cited by: High-Tc Copper Oxide Superconductors and Related Novel Materials: Dedicated to Prof. Müller on the Occasion of his 90th Birthday (Springer Series in Materials Science Book ) - Kindle edition by Bussmann-Holder, Annette, Keller, Hugo, Bianconi, Antonio.

Download it once and read it on your Kindle device, PC, phones or tablets. Use features like bookmarks, note taking and highlighting Manufacturer: Springer. As a result, We achieved a high surperconducting volume fraction, 95% above K. The crystallographic transformation from to was caused by changing the ratio of Ba to Sr.

The crystal structure of Tl 2 Ba Sr Ca 2 Cu 3 O 10 refined by X-ray powder diffraction data using Rietveld : Atsuko Soeta, Takaaki Suzuki, Tomoichi Kamo, Shin-Pei Matsuda. Purchase High Tc Superconductors, Volume 6B - 1st Edition. Print Book & E-Book. ISBNBook Edition: 1. Books to Borrow. Top American Libraries Canadian Libraries Universal Library Community Texts Project Gutenberg Biodiversity Heritage Library Children's Library.

Open Library. Featured movies All video latest This Just In Prelinger Archives Democracy Now. Occupy Wall Street TV NSA Clip Library. A zero resistance transition temperature of K has been achieved for Pb‐doped Bi‐Sr‐Ca‐Cu‐O superconductors prepared by conventional powder solid‐state reaction.

The materials contained both the high T c phase (Bi 2 Sr 2 Ca 2 Cu 3 O x) and the low T c phase (Bi 2 Sr 2 Ca 1 Cu 2 O x).Cited by: Two types of Pb, Bi, Sr, Ca, Cu, O superconducting single crystals: plate with a flat surface and bulk mica-like were successfully grown by a slow cooling method.

As-grown crystal dimensions up to 1 cm2 have been obtained. Magnetization and resistivity measurements indicate that the as-grown single crystals have a superconducting transition temperature at 85–90 K.

Surface morphology Cited by: 5. The temperatures and pathways of crystallization for amorphous Bi--Sr--Ca--Cu--O are strongly dependent on oxygen partial pressure (P[sub O[sub 2]]), the oxidation state of the glass, and the presence of Ag.

Reducing the P[sub O[sub 2]] from 1 to 0 bar lowers the onset of melting [degree]C, but does not change the onset of crystallization. Thallium-Based High-Tempature Superconductors (Applied Physics) by Allen Hermann (Editor) ISBN ISBN Why is ISBN important.

ISBN. This bar-code number lets you verify that you're getting exactly the right version or edition of a book. The digit and digit formats both work. Format: Hardcover. The effect of sintering in air and annealing in oxygen flow at various temperatures and times on the superconducting transition of Bi 2 Sr 2 Ca 1 Cu 2 O 8 ceramic was studied.

Samples sintered at K for 24 h in air and slowly-cooled to room temperature are single-phase with the highest zero resistivity temperature of 88 K. XRD pattern showed that the single-phase was characteristic of Author: B Sprinivasulu Naidu, B Jagannadha Reddy, Y Prabhakara Reddy, P Jayarama Reddy.

Get this from a library. Superconducting glass-ceramics in Bi-Sr-Ca-Cu-O: fabrication and its application. [Yoshihiro Abe;] -- High Tc oxide superconductors such as Bi(Pb)-Sr-Ca-Cu-O (BSCCO) and Y-Ba-Cu-O (YBCO) systems are usually fabricated by sintering given mixtures of raw materials.

Generally, sintering processing takes. Crystal Growth and Neutron Scattering Study on High T c xCuO 4. Crystal Growth and Neutron Scattering Study on High T c Superconductors La High TC Superconductors Introduction Inthischapter,backgroundinformationontheNd-LSCOfamilyofmaterialswill bediscussed.

TheNd-LSCOhasmanysimilaritieswithit’smuchbetterstudiedsister. High Tc oxide superconductors such as Bi(Pb)-Sr-Ca-Cu-O (BSCCO) and Y-Ba-Cu-O (YBCO) systems are usually fabricated by sintering given mixtures of raw materials.

Generally, sintering processing takes a longer heating time and the products are mechanically low strength and cannot be formed into complex shapes such as a coil, a curved fine tube.

STUDYOF THE GLASS FORMATION OF HIGH TEMPERATURE SUPERCONDUCTORS--CENTER DIRECTOR' S DISCRETIONARY FUND FINAL REPORT (PROJECT #) TECHNICAL MEMORANDUM INTRODUCTION The revolutionary and historic advances in high temperature superconductivity starting with La-Sr-CuO [1] and followed by the discovery of the Y-Ba-CuO, [2] Bi-Sr-Ca-CuO.

Ma and A. Pierre: Sol-gel processing of high-Tc superconductors in the Bi-(Pb)-Sr-Ca-Cu-0 system FIG. (a), (b), Heat treatment time (hours) Estimate of the volume fraction of the phase for gels an d (c) hea t treate a °C for differen times. phase is the one after h heat treatment.

TheCited by: herein reports a new high Tc for Pb-based superconductors. Resistance tests show the intergrowth compound Pb3Sr4Ca3Cu6Ox has a critical transition temperature near Kelvin. Typically, superconducting lead-cuprates do not perform well when the insulating layers contain only Pb.

circulating current. Even though small parts of the superconductor becomes normal conducting the major part of the superconductor stays in the superconducting state. In almost all of the applications type II superconductors are used, because they can remain superconducting in very high magnetic fields.

Figure Abstract. Bi-Sr-Ca-Cu-O superconductors with a Pb addition were prepared by a conventional solid state reaction.

Early in the sample heat treatment a large volume fraction of low-T c phase (Bi 2 Sr 2 Ca 1 Cu 2 O x) further sintering the volume fraction of the high-Tc phase (Bi 2 Sr 2 Ca 2 Cu 3 O x) gradually increases.A zero resistance transition temperature of K was achieved Author: Hiroshi Maeda, Hiroaki Kumakura, Toshihisa Asano, Hisashi Sekine, Daniel R.

Dietderich, Syozo Ikeda. Frontiers of Materials Research/Electronic And Optical Materials: Volume I is part of a five-volume compilation of the proceedings of C-MRS International Conference held in Beijing, China.

The said conference discusses the areas of research in materials science. The book Book Edition: 1. Investigation of the K Bi{sub 2}Sr{sub 2}Ca{sub 2}Cu{sub 3}O{sub {ital x}} phase formation in superconducting thin films of Bi-based cuprates is reported.

The films were dc magnetron sputtered from single Bi(Pb)-Sr-Ca-Cu-O targets of various stoichiometries, and subsequently annealed in air at. Thermal Decomposition of Solids and Melts: New Thermochemical Approach to the Mechanism, Kinetics and Methodology - Ebook written by Boris V.

L'vov. Read this book using Google Play Books app on your PC, android, iOS devices. Download for offline reading, highlight, bookmark or take notes while you read Thermal Decomposition of Solids and Melts: New Thermochemical Approach to the Mechanism /5(3).

In conductive ceramics: Superconductors ceramic conductors are the so-called high T c superconductors, materials that lose their resistance at much higher critical temperatures than their metal alloy counterparts.

Most high T c ceramics are layered structures, with two-dimensional copper-oxygen sheets along which superconduction takes place. The first of these was discovered in by. Electronic nature of high temperature cuprate superconductors M R Norman and C Pépin-From high temperature superconductivity to quantum spin liquid: progress in strong correlation physics Patrick A Lee-The t J model for the oxide high-Tc superconductors Masao Ogata and Hidetoshi Fukuyama-Recent citations Machine learning modeling of.Soon after the book went out of print.

However, it continues to be widely used and quoted, and due to the ever growing interest in "Magnetic Flux Structures in Superconductors", a second edition is now being made available.

An extensive new chapter gives a comprehensive review of developments relevant to high-temperature by: Ceramics, Glass Formability, Glass-Ceramics PRICE CODE NTIS SECURITY CLASSIFICATION It has been shown that the Bi-Sr-Ca-Cu-O (BSCCO) system advantage for high Tc superconductors is that fibers or films.