Sökning: "gas phase analysis GPA"

Visar resultat 1 - 5 av 9 avhandlingar innehållade orden gas phase analysis GPA.

  1. 1. Transport in Oxides Studied by Gas Phase Analysis

    Författare :Qian Dong; Gunnar Hultquist; W.J. Quadakkers; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Gas Phase Analysis; metal; oxide; platinum; vitreous silica; yttria stabilized zirconia; diatomic gas; oxidation; dissociation; permeation; uptake release.; Chemical engineering; Kemiteknik;

    Sammanfattning : The transport in oxides is studied by the use of gas phase analysis (GPA). An experimental method to identify transported species of gases and their contribution to the overall transport of gases in oxides and an experimental method to evaluate the parameters diffusivity, concentration, permeability of gases in oxides and effective pore size in oxides are developed, respectively. LÄS MER

  3. 2. Studies of transport in some oxides by gas phase analysis

    Författare :Qian Dong; KTH; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; gas phase analysis GPA ; secondary ion mass spectrometry SIMS ; chromium; platinum; quartz; porous oxides; Soil science; Markvetenskap;

    Sammanfattning : .... LÄS MER

  4. 3. Studies of Material Properties using Ab Initio and Classical Molecular Dynamics

    Författare :Love Koči; Börje Johansson; Rajeev Ahuja; Dario Alfè; Uppsala universitet; []
    Nyckelord :Atomic and molecular physics; molecular dynamics; phase transitions; melting; elasticity; equation of state; metals; rare gases; Atom- och molekylfysik;

    Sammanfattning : In this thesis, material properties have been examined under extreme conditions in computer-based calculations.The research on iron (Fe), nickel (Ni), and ferropericlase (Mg1-xFexO) are not only important for our understanding of the Earth, but also for an improved knowledge of these materials per se. LÄS MER

  5. 4. The role of deep hydrocarbons in the global hydrocarbon budget

    Författare :Daniil Kudryavtsev; Vladimir Kutcherov; Kostya Trachenko; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hydrocarbons; non-methane volatile hydrocarbons; carbon dioxide; methane; ethane; propane; butane; global warming; diamond-anvil cells; Raman spectroscopy; high pressure; high temperature; phase transition; Energy Technology; Energiteknik;

    Sammanfattning : Nowadays, the issue of global warming and related environmental problems got widespread awareness among scientific society, politics, the industry as well as it has affected our everyday life. The reason for such a negative impact on the atmosphere is attributed mainly to human activities. LÄS MER

  7. 5. Characterization of Ti2AlC coatings deposited with High Velocity Oxy-Fuel and Magnetron Sputtering Techniques

    Författare :Jenny Frodelius; Lars Hultman; Jens Emmerlich; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; MAX phase; Thermal Spray; PVD; Materials science; Teknisk materialvetenskap;

    Sammanfattning : This Thesis presents two different deposition techniques for the synthesis of Ti2AlC coatings. First, I have fabricated Ti2AlC coatings by high velocity oxy-fuel (HVOF) spraying. LÄS MER