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  • Advancing the understanding of bulk metallic glasses as structural materials through exploration of mechanical properties

    Creator:
    Naleway, Steven E.
    Abstract:
    Bulk metallic glasses (BMGs) offer a great deal of potential through their near-theoretical strength, potentially high toughness and unique forming and molding traits. However, there are still a number of outstanding issues that bar their widespread use. This thesis describes the investigation of three research questions each designed to further...
    Resource Type:
    Masters Thesis
    Full Text:
    UNDERSTANDING OF BULK METALLIC GLASSES AS STRUCTURAL MATERIALS THROUGH EXPLORATION OF MECHANICAL PROPERTIES

  • Thermodynamics of the Pd₄₃Ni₁₀Cu₂₇P₂₀ metallic glass-forming alloy

    Creator:
    Kuno, Masahiro
    Abstract:
    By the investigation of the bulk metallic glass-forming liquids that have very low critical cooling rates, the thermodynamics of metallic glasses can be clarified. For studying thermodynamic properties, such as the specific heat capacity, calorimetry (DSC) is utilized and one of the most used instruments is the differential scanning calorimeter....
    Resource Type:
    Masters Thesis
    Full Text:
    Thermodynamics of the Pd43Ni10Cu27P20 metallic glass-forming

  • On the fragility and equilibrium phases of metallic glass forming alloys

    Creator:
    Shadowspeaker, Ludi A.
    Abstract:
    The heating rate dependence of the glass transition temperature of the Ni₆₅Nb₃₅, Ni₆₀Nb₃₅Sn₅, Ni₅₉.₃₅Nb₃₄.₄₅Sn62, Ni₆₀(Nb₄₀Ta₆₀)₃₄Sn₆, and Ni₅₇Fe₃Nb₃₅Sn₅ metallic glass forming alloys was investigated with a differential scanning calorimeter (DSC). The inverse heating rate for each DSC experiment was plotted versus inverse temperature and a Vogel-Fulcher- Tamman (VFT) type relation was...
    Resource Type:
    Masters Thesis
    Full Text:
    that lead to metallic glass formation. The thermodynamic and mechanical properties of metallic

  • Thermodynamis and kinetics of Zr₅₈̣₅Cu₁₅̣₆Ni₁₂̣₈Al₁₀̣₃Nb₂̣₈ bulk metallic glass forming alloy

    Creator:
    Shah, Minalben B.
    Abstract:
    Among recently found multi-component Zr-based bulk metallic glasses (BMG), Zr₅₈.₅Cu₁₅.₆Ni₁₂.₈Al₁₀.₃Nb₂.₈ is characterized by its lower critical cooling rate requirement and absence of beryllium as one of the constituent element which makes its handling more convenient. Its large supercooled liquid regions made possible the study of thermodynamics and kinetics of this...
    Resource Type:
    Masters Thesis
    Full Text:
    Bulk Metallic Glass It is important to study mechanical properties of Bulk Metallic Glass (BMG) in

  • Rheological measurements of bulk metallic glass forming alloys above the liquidus temperature

    Creator:
    Shaw, Tyler A.
    Abstract:
    A high temperature high vacuum rheometer has been designed, fabricated, and tested for the study of the steady shear viscosity for multicomponent bulk metallic glass forming alloys. This rheometer has an operating range up to 1525 K, rotational frequencies of 9.4*10⁻³-3.7*10¹ radians/s, and a calibrated viscosity range of 9.6*10⁻³ and...
    Resource Type:
    Dissertation
    Full Text:
    Measurements of Bulk Metallic Glass Forming Alloys Above the Liguidus TemDerature Abstract approved: RaIf

  • Bioactive glass filled resin composites : mechanical properties and resistance to secondary tooth decay

    Creator:
    Khvostenko, Dmytro
    Abstract:
    Dental resin composites are widely used in modern dentistry due to their aesthetic appearance. However, resin based restorations have inferior mechanical properties (fracture is the second reason for restorations replacement) in comparison to alloy based composites and their antimicrobial properties still remain poor, leading to secondary tooth decay development on...
    Resource Type:
    Dissertation
    Full Text:
    . Title: Bioactive Glass Filled Resin Composites: Mechanical Properties and Resistance to Secondary

  • Refractory Amorphous Metal Thin Films

    Creator:
    Olsen, Kristopher R.
    Abstract:
    Amorphous metal thin films lack the grain boundaries and dislocations present in crystalline metal films. As a result, amorphous metal films can be more mechanically robust, atomically smooth, and more resistant to chemical attack than crystalline metals. However, amorphous metals are meta-stable and subject to crystallization upon heating, thus limiting...
    Resource Type:
    Dissertation
    Full Text:
    -transition temperature (Tg), and material type (BMG=Bulk Metallic Glass, TF=Thin Film)…………………………22 3.1