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Superconducting magnets and superconductivity : research, technology and applications /
| Clasificación: | Libro Electrónico |
|---|---|
| Otros Autores: | , |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
New York :
Nova Science Publishers,
[2009]
|
| Temas: | |
| Acceso en línea: | Texto completo |
Tabla de Contenidos:
- SUPERCONDUCTING MAGNETS ANDSUPERCONDUCTIVITY: RESEARCH, TECHNOLOGY AND APPLICATIONS; CONTENTS; PREFACE; RESEARCH AND REVIEW STUDIES; CORRELATION EFFECTS AND SUPERCONDUCTIVITYIN CUPRATES: A CRITICAL ACCOUNT; Abstract; 1. Introduction; 2. Electronic Correlation in Molecules; 3. Electron Structure of Embedded Transition Metal Ion; 4. Metal
- Metal Interaction and the MV-2 Model; 5. Mott Problem Involves Three Oxidation States (MV-3); 6. Variational Calculations of Electron Structure; 7. Pair Currents in the Ground State; 8. Vibronic Wave Functions. Energy Gap; 9. Phonon Softening; 10. ARPES.
- 11. Discussion and ConclusionReferences; IMPROVED FLUX PINNING PROPERTIES FOR RE123SUPERCONDUCTORS BY CHEMICAL METHODS; Abstract; 1. Introduction; 2. Dilute Impurity Doping Effects; 2.1. Dilute Lu-Doping Effect for Y123 Melt-solidified Bulk; 2.2. Effect of Dilute Impurity Doping to CuO-Chain; 2.3. Dilute Impurity Doping Effects for Dy123 Melt-Solidified Bulks; 2.4. Changes in Pinning Effect by Dilute Chemical Doping to DifferentCation Sites; 3. New Effective Pinning Site: BaTbO3 Precipitates; 3.1. BaTbO3 Addition; 3.2. Tb4O7 Addition; 4. Conclusion; Acknowledgements; References.
- MECHANICAL CHARACTERIZATIONAT NANOMETRIC SCALE OF CERAMICSUPERCONDUCTOR COMPOSITESMECHANICAL CHARACTERIZATIONAT NANOMETRIC SCALE OF CERAMICSUPERCONDUCTOR COMPOSITES; Abstract; 1. Introduction; 1.1. High-Temperature Superconductors (HTSC); 1.1.1. Solidification and Microstructure of YBCO Bulk Materials; a. Top-Seeded Melt-Growth (TSMG) Technique; b. Bridgman Technique; 1.1.2. Oxygenation Process; a) Mechanical stress; b) Propagation of cracks during oxygenation; 1.1.3. Applications; 1.2. Indentation Testing Technique; 1.2.1. Testing Equipment (Instrumentation); 1.2.2. Nanoindenter's Tips.
- 1.2.3. Good Experimental Practicea) Choosing an appropriate indenter; b) Environmental control; c) Surface preparation; d) Testing procedure; e) Detecting the surface; 1.2.4. Experimental Techniques; a. Hardness and elastic modulus measurements; b. Spherical indentation (Determination of the stress-strain curves); c. Fracture toughness measurement; 1.2.5. The Effective Indenter Shape; 1.2.6. Errors due to Pile-up and Sinking-in; 1.2.7. Indentation Size Effect, ISE; a. Meyer's law; b. Hays-Kendall approach; c. Elastic recovery model or Elastic/Plastic deformation model.
- D. Proportional specimen resistance model or PSR modele, The modified PSR model; 2. Mechanical Properties; 2.1. State of the Art of Mechanical Properties of YBCO Samples; 2.2. Mechanical Properties of YBCO Samples Textured by Bridgman and TSMG Technique by Nanoindentation; 2.2.1. Plastic Deformation; Experimental Conditions; Experimental Curves; Characterization Imprints; Hardness; Young's Modulus; c. Indentation Size Effect; d. Pile-up and Sink-in Problems; Fracture Toughness; 2.2.2. Elastic Deformation; Experimental Conditions; Determination of the Elasto-plastic Transition.