Sökning: "phase diagrams"

Visar resultat 21 - 25 av 105 avhandlingar innehållade orden phase diagrams.

  1. 21. Thermodynamic study of the FeO-MgO-Al2O3-SiO2 system : Data assessment and phase diagram calculation

    Författare :Olga Fabrichnaya; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Earth sciences; Geovetenskap; Earth sciences; Geovetenskap; mineralogi; petrologi och tektonik; Mineral Chemistry; Petrology and Tectonics;

    Sammanfattning : This dissertation consists of assessed thermodynamic properties for phases in the geologically and industrially important system Fe-Mg-Al-Si-O and calculated phase diagrams. Mathematical processing of different kinds of experimental data (phase equilibrium data, calorimetric, volumetric, thermophysical,electrochemical, activity data) is used to derive internally consistent thermodynamic database. LÄS MER

  3. 22. First principles study of tungsten-based alloys: From defect thermodynamics to phase diagrams

    Författare :Leili Gharaee; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; structural materials; first-principles calculations.; point defects; tungsten alloys; irradiation;

    Sammanfattning : Nuclear fusion is a very attractive option for energy production as it is clean, safe and efficient. The major obstacle in construction of fusion power plants is the development of materials that can tolerate the extreme operational condition especially high-energy neutron flux. LÄS MER

  4. 23. Phase diagrams, elasticity and thermodynamics of Ni, Co and Fe under high pressure

    Författare :Peter Lazor; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : .... LÄS MER

  5. 24. Geometrical Structure, Phase Diagrams, and Core-Level Binding Energiesof Metal Surfaces: Calculations, Simulations, and Experiments

    Författare :Mikael Borg; Synkrotronljusfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; adsorption; chemical shifts; low energy electron diffraction; Monte Carlo simulations; Condensed matter:electronic structure; electrical; magnetic and optical properties; Kondenserade materiens egenskaper:elektronstruktur; spectroscopy; relaxation; magnetic resonance; supraconductors; spektroskopi; magnetisk resonans; supraledare; egenskaper elektriska; magnetiska och optiska ; molecular vibrations; density functional theory; single crystal surfaces; core-level photoemission; metal surfaces; Fysicumarkivet A:2003:Borg;

    Sammanfattning : This thesis concerns clean and adsorbate covered metal surfaces and surface alloys. These systems have been studied using theoretical and experimental methods. In the first part of the thesis, the different techniques that have been utilized in this work are presented, and the included publications are summarized. LÄS MER

  7. 25. Aqueous Block Copolymer Systems. Self-association, Phase Behaviour and Partitioning of Biomolecules

    Författare :Mårten Svensson; Fysikalisk kemi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; block copolymer self-association partitioning phase behaviour; Physical chemistry; Fysikalisk kemi;

    Sammanfattning : The phase and partitioning behaviour of aqueous block copolymer systems has been studied. The block copolymers used in this work were built up of three blocks. The middle block was poly(propylene oxide) (PPO) and hydrophobic. The two outer blocks constisted of poly(ethylene oxide) (PEO) chains and less hydrophobic. LÄS MER