自高溫超導(dǎo)材料被發(fā)現(xiàn)以來,其高載流能力在電力系統(tǒng)中的應(yīng)用前景吸引了人們廣泛關(guān)注。超導(dǎo)在電力方面應(yīng)用的關(guān)鍵問題是獲得低成本、高臨界電流的線帶材。近年來基于薄膜外延技術(shù)發(fā)展起來的REBa₂CuO_7-x（REBCO）涂層導(dǎo)體（即第二代高溫超導(dǎo)帶材）已經(jīng)在全球范圍內(nèi)正在以不同技術(shù)路線逐步實(shí)現(xiàn)產(chǎn)業(yè)化批量化制備。高品質(zhì)REBa₂Cu₃O_7-x超導(dǎo)膜的制造工藝,如脈沖激光沉積（PLD）,共蒸發(fā)（CE）,化學(xué)氣相沉積（CVD）液相外延（LPE）和金屬有機(jī)沉積（MOD）等的研究已經(jīng)取得了重大進(jìn)展。這些制備方法可以產(chǎn)生高取向度的超導(dǎo)薄膜,并獲得了高性能涂層導(dǎo)體。在不同沉積工藝中,不降低臨界電流密度的情況下實(shí)現(xiàn)膜厚度的有效增加,均是一個(gè)重要的研究問題。MOD是實(shí)現(xiàn)涂層導(dǎo)體低成本、批量化制備非常有優(yōu)勢(shì)的途徑之一。目前,國內(nèi)外研究團(tuán)隊(duì)在這方面已經(jīng)做了很多工作,采用該方法獲得的超導(dǎo)臨界電流已經(jīng)達(dá)到了300-500 A/cm（77K,自場(chǎng)）。在MRI、能量存儲(chǔ)系統(tǒng)、發(fā)電機(jī)、發(fā)動(dòng)機(jī)、電纜、超導(dǎo)線材和帶材、加速... 

【文章來源】：上海大學(xué)上海市 211工程院校

【文章頁數(shù)】：126 頁

【學(xué)位級(jí)別】：博士

【文章目錄】：
摘要
ABSTRACT
Chapter 1. Introduction and Literature Review
    1.1 Brief History of Superconductivity
        1.1.1 Introduction to superconductor
        1.1.2 Type of superconductors
        1.1.3 Pinning mechanism in type Ⅱ superconductors
    1.2 Key Issues for Improving Properties of YBa_2Cu_3O_(7-x)
        1.2.1 Dependence of critical current density on film thickness
        1.2.2 Vortex pinning in YBa_2Cu_3O_(7-x) films
        1.2.3 Weak superconducting coupling across grain boundaries
    1.3 REBa_2Cu_3O_(7-x) superconductor coated conductors
    1.4 REBa_2Cu_3O_(7-x) Thin Film Growth Technology
        1.4.1 Physical methods
        1.4.2 Chemical methods
Chapter 2.Experimental Method and Characterization Techniques
    2.1 Motivation
    2.2 Preparation of REBa_2Cu_3O_(7-x) Coated Conductors
    2.3 Techniques of Characterization and Measurements
        2.3.1 Microstructure characterization
        2.3.2 Superconducting properties
Chapter 3. Thick REBa_2Cu_3O_(7-x) Superconducting Films by Single Coating of Low-Fluorine MOD
    3.1 Introduction
    3.2 Experimental Details
    3.3 Structural Analysis
    3.4 The Superconducting Properties
    3.5 Summary
Chapter 4. Enhanced Flux Pinning in YBaCuO_(7-x) Films with Co-Doping SrZrO_3 and Dy_2O_3 Nanoparticles
    4.1 Introduction
    4.2 Experimental Details
    4.3 Structural Analysis
    4.4 Superconducting Properties
        4.4.1 Self-field performance
        4.4.2 In-field performance
    4.5 Summary
Chapter 5. Artificial Bilayers of YDy_(0.5)Ba_2Cu_3O_(7-δ) with SrZrO_3 and BaZrO_3 Interlayers
    5.1 Introduction
    5.2 Experimental Details
    5.3 Structural Analysis
    5.4 The Superconducting Properties
        5.4.1 Self-filed performance
        5.4.2 In-field properties
    5.5 Summary
Chapter 6. Artificial Bilayers of YDyBCO+Dy211/ YDyBCO
    6.1 Introduction
    6.2 Experiment Details
    6.3 Structural Analysis
    6.4 Superconducting Properties
        6.4.1 Self-field performance
        6.4.2 In-field properties
    6.5 Summary
Chapter 7. Conclusions and Further Work Proposed
    7.1 Conclusions
    7.2 Further Work Proposed
REFERENCES
AUTHOR PUBLICATIONS
ACKNOWLEDGEMENTS


【參考文獻(xiàn)】：
期刊論文
[1]SUPERCONDUCTIVITY ABOVE LIQUID NITROGEN TEMPERATURE IN Ba-Y-Cu OXIDES[J]. 趙忠賢,陳立泉,楊乾聲,黃玉珍,陳賡華,唐汝明,劉貴榮,崔長(zhǎng)庚,陳烈,王連忠,郭樹權(quán),李山林,畢建清.  Science Bulletin. 1987(10)



本文編號(hào)：3512224