Dissertation > Excellent graduate degree dissertation topics show

The Experimental Study of Mechanical Properties of HTS Tapes

Author: YangJie
Tutor: LiLiang
School: Huazhong University of Science and Technology
Course: Motor and electrical
Keywords: HTS tapes Mechanical properties Critical current Four-point bendStrain Fatigue
CLC: TM26
Type: Master's thesis
Year: 2011
Downloads: 77
Quote: 0
Read: Download Dissertation

Abstract


With the development of superconducting technology, superconducting materials have been applied in many areas. The mechanical property of HTS tapes is an important feature in specific applications. High-temperature superconducting tapes may be subject to tension, compression, bending and fatigue load effects, which will result in a corresponding strain. If the strain exceeds a certain range, the superconducting materials will crack or even break and the band material critical current decay will be occurred, which affect the application of superconducting tapes. Therefore, the critical current of superconducting material relationship with the strain has important practical significance.The experimental platform for measuring the mechanical propertied of high-temperature superconducting tapes is designed .The method of four-point bending is used to load and the four-lead method is to measure the critical current of superconducting tapes. Meanwhile, the loading precision for the experimental platform and the critical current measurement errors are analyzed, which indicate that the experimental platform can effectively carry out the mechanical properties of superconducting tapes experiment. Compared with the general tensile loading with the two points, the experimental platform is easier to achieve compressive strain and fatigue loading. And compared with other kinds of bending loads experimental platform, our platform has the advantages for operating easily and making the sample suffered strain more uniform.The critical current of the two Bi-2223 tapes are measured using this experimental platform in tension, compression, bending and fatigue loading. On this basis, the effects of the strain on the critical current are analyzed. The results show that: (1) High-temperature Bi Superconducting tapes have a critical strain and the compression performance is better than tensile performance; (2) Fatigue load can make the critical current of Bi HTS tapes further decay; (3) Bi-2223 tapes have minimum bend radius.

Related Dissertations

  1. Study on Contact Fatigue Life Based on Grease Variation with Temperature,TH117.22
  2. The Fatigue State Recognition of the Driver Based on Eye Detection,TP391.41
  3. The Expression of CGRP, OPG in Tibial Tissue of Rat Fatigue Fracture and the Role of Acupuncture Intervention,G804.2
  4. Study on Fatigue Life Assessment and Dynamic Fracture of Ship Structure,U661.4
  5. Dynamic Simulation and Fatigue Durability Analysis of Wheel Loader Worktool,TH243
  6. The Modification of Polypropylene by Melt Grafting and Blending and Its Fatigue Resistance,TQ325.14
  7. The Influence of Bu Zhong Yi Qi Pill on Cancer Related Fatigue with the Deficiency of Spleen-Qi,R273
  8. The Study of the Monitoring System of the Hydraulic Disc Brake,TD534.6
  9. Research on Fatigue Properties of Local 304 Steel and Its Welding Structure,TG457.11
  10. sEMG Signal Changes on Lower Limb Musculus Fatigue during Cycling Exercise Process,G872.3
  11. The Study of Fatigue Detection of Drivers Based on the Infrared Conditions,TP391.41
  12. Study on Fatigue Property of Steel 508-3,TG115.57
  13. Analysis on Static-dynamic and Fatigue Characteristics of Metallurgical Overhead Traveling Crane,TH215
  14. Study on the Technique of Information Fusionapplied to Enbedded Driver Fatigue Detection,TP368.12
  15. Analysis and Evaluation of Some Heavy Truck Drive Axle Housing’s Static and Dynamic Characteristics,U463.218.5
  16. Excitation System Design and Research of High-frequency Fatigue Machine,TH871.3
  17. Research on the Method of Driver Fatigue State Detection Based on Vision,TP391.41
  18. Fatigue Fracture Analysis of Linear Vibrating Screen Beam,O346.22
  19. Study of Driver Fatigue Based on Vision Detection System,TP391.41
  20. Processing of SiC_f /SiC Composites Prepared with LPVCS as Precursor Polymer,TB332

CLC: > Industrial Technology > Electrotechnical > Electrical materials > Superconductors, superconductor materials
© 2012 www.DissertationTopic.Net  Mobile