Sökning: "Al-Cu"

Visar resultat 1 - 5 av 15 avhandlingar innehållade ordet Al-Cu.

  1. 1. Crystallisation Processing of Al-base Alloys

    Författare :Carl Jonas Fjellstedt; KTH; []
    Nyckelord :Al-B; Al-Ti-B; Al-Cu; Al-Si; primary precipitation; in-situ composite; lattice defects; microgravity;

    Sammanfattning : .... LÄS MER

  3. 2. On the solidification of Al alloys during microgravity

    Författare :Johan Dahlström; KTH; []
    Nyckelord :;

    Sammanfattning : Thermal analyses have been performed on Al, Al-Cu alloys,Al-Sn alloys, Pb, Sn, Pb-Sn alloys and Al-based amorphousalloys were also investigated. The cooling rates varied fromless than a Kelvin per minute to more than 10,000 Kelvin persecond. Solidification was made under normal gravity and undermicrogravity conditions. LÄS MER

  4. 3. Theoretical studies of thermodynamic properties of condensed matter under high temperature and high pressure

    Författare :Yi Wang; KTH; []
    Nyckelord :;

    Sammanfattning : Based on first-principles calculations coupled with theclassical mean-field potential approach. A wide range ofthermodynamic properties have been studied. This includesambient condition properties, 300-K equation of state,shock-wave Hugoniot, reduction of shock-wave data, highpressure melting, anharmonic e.ects and etc. LÄS MER

  5. 4. Al-based Thin Film Quasicrystals and Approximants

    Författare :Simon Olsson; Fredrik Eriksson; Lars Hultman; Jensen Jens; Xiaodong Zou; Linköpings universitet; []
    Nyckelord :;

    Sammanfattning : In this work, Al-based quasicrystalline and approximant phases have been synthesized in thin films using magnetron sputter deposition. Quasicrystals are structures having long-range order and rotational symmetries which are inconsistent with periodicity. LÄS MER

  7. 5. Approximant Phases in Quasicrystalline AlCuFe Thin Films

    Författare :Simon Olsson; Lars Hultman; Jens Birch; Fredrik Eriksson; Xiaodong Zou; Linköpings universitet; []
    Nyckelord :;

    Sammanfattning : Quasicrystalline materials exhibit properties that are very different from conventional metallic materials. They are mostly metallic alloys, and show high hardness and stiffness but low electrical and thermal conductivity. The coefficient of friction and surface energy of the quasicrystalline materials are also very low. LÄS MER