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Filtering by: Advisor Warnes, William H. Remove constraint Advisor: Warnes, William H. Degree Field Mechanical Engineering Remove constraint Degree Field: Mechanical Engineering

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  • Mechanical properties of Nb-Ti composite superconducting wires

    Creator:
    Liu, He
    Abstract:
    Mechanical properties of Nb-Ti composite superconducting wires were tested at room temperature. The results were analysed using simple composite theory, the rule of mixtures. The objective is to predict the mechanical properties of Nb-Ti superconducting composite wires as a function of volume ratio and geometry of the components, the composite...
    Resource Type:
    Masters Thesis
    Full Text:
    Wires. /i/ Ai /, Abstract approved: Redacted for Privacy William H. Warnes Mechanical properties of Nb

  • Evaluation of copper to superconductor area ratio measurement techniques for niobium-titanium composite superconducting wire

    Creator:
    Pyon, Taeyoung
    Abstract:
    Measurement of the copper to superconductor ratio (Cu/SC) in composite superconducting wires is necessary for process control, quality assurance, and characterization of the final wire properties. A comparison has been made of three techniques for measuring the Cu/SC ratio on a set of commercial wires produced for the Superconducting SuperCollider...
    Resource Type:
    Masters Thesis
    Full Text:
    Composite Superconducting Wire Redacted for Privacy Abstract approved : William H. Warnes Measurement of

  • Small sample, low-temperature calorimetry

    Creator:
    Wolochuk, Lee
    Abstract:
    A calorimeter capable of measuring the heat capacity of 1 mg size samples from 4.2 to greater than 100 K has been designed, constructed, and tested. The sample is bonded to the end of a 0.002 inch diameter, 0.5 cm long chromel-constantan thermocouple (type E) and heated optically with a...
    Resource Type:
    Masters Thesis
    Full Text:
    appreciation and gratitude to my advisor, Dr. William H. Warnes, for guiding me throughout this project

  • Mechanics of Nb-Ti superconducting composites

    Creator:
    Guo, Zhiqiang
    Abstract:
    Mechanical behavior of Nb-Ti superconducting composites with copper matrices have been studied experimentally and theoretically. Experimental work includes extensive measurements of Cu/Nb-Ti composite system. Techniques for fine fiber testing and composite wire measurement have been developed. Experimental parameters examined in this research include geometry, hardness, Young's modulus, Poisson's ratio, yield...
    Resource Type:
    Dissertation
    Full Text:
    Abstract approved: ,oercond cting Composi s William H. Warnes Mechanical behavior of Nb-Ti

  • Properties of a niobium-titanium multilayer thin film

    Creator:
    Norris, Jeffrey A., (Jeffrey Alan), 1965-
    Resource Type:
    Masters Thesis
    Full Text:
    a Niobium-Titanium Multi layer Thin Film. Abstract approved: William H. Warnes A multilayer thin

  • Critical current distributions and the V(1) transition in Nb-Ti superconducting composites

    Creator:
    Narang, Girish
    Abstract:
    It is well established that the extended range V(I) transition behavior in filamentary superconducting composites depends strongly on the processing conditions of the composite. Based on previous work, a model proposed by Warnes et al predicts that the second derivative of the V(I) transition is related to a more fundamental...
    Resource Type:
    Masters Thesis
    Full Text:
    DISTRIBUTIONS AND THE V(I) TRANSITION IN Nb-Ti SUPERCONDUCTING COMPOSITES. Abstract approved: WILLIAM H

  • Microstructures and properties of Nb/Ti multilayered thin films

    Creator:
    Faase, Kenneth James
    Resource Type:
    Dissertation
    Full Text:
    Multi layered Thin Films. Abstract approved: William H. Warnes The microstructures and properties of

  • Metallurgy and superconductivity of niobium-titanium-tantalum ternary alloy systems

    Creator:
    Li, Na
    Abstract:
    The metallurgy and superconductivity of the Nb-Ti-Ta ternary alloy system were studied. The Nb-Ti, and Ta-Ti binary samples, and Nb-Ti-Ta ternary samples were precipitation heat treated under different schedules. After the precipitating heat treatment, the samples were characterized by X-Ray Diffraction (XRD) techniques. Equilibrium binary and ternary phase diagrams based...
    Resource Type:
    Masters Thesis
    Full Text:
    Niobium-Titanium-Tantalum Ternary Alloy System. Abstract approved: William H. Warnes The metallurgy