Sökning: "crater formation"

Visar resultat 1 - 5 av 10 uppsatser innehållade orden crater formation.

  1. 1. Petrological, geochemical and structural evidence of fluid-rock interaction in the Siljan Ring

    Kandidat-uppsats, Stockholms universitet/Institutionen för geologiska vetenskaper

    Författare :William Crang; [2024]
    Nyckelord :methane; hydrothermal fluids; fluid-rock interaction; impact craters; reduction haloes; pyrite preservation; Siljan Ring;

    Sammanfattning : The Siljan Ring in Dalarna, Sweden is the site of the largest meteor impact crater in Europe and has long been a topic of discussion regarding methane production. However, the source of this methane and the timing of production in relation to the impact remain unclear. LÄS MER

  3. 2. Petrography of impactites from the Dellen impact structure, Sweden

    Master-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Robert Mroczek; [2023]
    Nyckelord :Dellen; Impact; structure; magnetite; apatite; shock waves; shock-metamorphic; features; Impactite; petrography; scanning electron microscope; SEM; geology; Earth and Environmental Sciences;

    Sammanfattning : Identification and characterization of shock-metamorphic features in hypervelocity impact craters is important for our understanding of how shock waves interact with geologic materials and how impact craters form, which in turn is essential to our understanding of what role impact cratering played in the development of our solar system. Of particular interest are accessory minerals like apatite, which contains various volatiles that can affect the atmosphere of a body, or magnetite whose magnetic properties constitute a remote sensing indicator which allows us to study and understand the internal structures of distant bodies. LÄS MER

  4. 3. Quality Improvements for Anode Coating in Lithium-Ion Battery Cell Manufacturing : A Case Study at Northvolt Labs

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för ekonomi, teknik, konst och samhälle

    Författare :Nikolaj König; Johan Norlin; [2021]
    Nyckelord :Lithium-ion battery cells; slot die coating; data analysis; electrode; anode; non-conformities;

    Sammanfattning : Lithium-ion batteries (LIB) represent a promising energy storage solution in the pursuit of electrification to combat climate change. In order for LIBs to be used across different industries, they have to be commercially viable. LÄS MER

  5. 4. Influence of the Martian regolith on the atmospheric methane and water vapour cycle

    Master-uppsats, Luleå tekniska universitet/Rymdteknik

    Författare :Julian Weinmann; [2019]
    Nyckelord :Mars; methane; water; diffusion; regolith; adsorption; general circulation model; simulation;

    Sammanfattning : Context. The Martian methane and water cycle are subject of ongoing research through simulation. Exchange with the subsurface has a potentially strong impact, but is often neglected. Aims. LÄS MER

  7. 5. Tool wear in turning of titanium alloy Ti–6Al–4V : Challenges and potential solutions for crater wear, diffusion and chip formation

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Tillämpad materialvetenskap

    Författare :Erik Bamford; [2016]
    Nyckelord :Wear; Titanium; Ti6Al4V; Diffusion; Crater Wear; Chip Formation; Shear Strain; Cracks; Turning; Cutting Tools; Cemented Carbide; TiCN; Coating; Sandvik; Coromant;

    Sammanfattning : Titanium alloys are major materials used in the airplane industry, and prospects show that airplane production will double in the next 20 years. Consequently, the demand for cutting tools for machining of titanium alloys will increase. The primary problem when machining titanium alloys is their low thermal conductivity. LÄS MER