Sökning: "curing times"

Visar resultat 1 - 5 av 18 uppsatser innehållade orden curing times.

  1. 1. Investigation of Antenna Radomes in Low Earth Orbits

    Master-uppsats, Lunds universitet/Centrum för analys och syntes

    Författare :Mathias Manohar Gren; [2023]
    Nyckelord :Materials; Science; Space; Satellites; Antenna Radomes; Beyond Gravity; Coatings; Physics; Chemistry; Low Earth Orbits; Engineering; Lunds University; Materials Chemistry; Technology and Engineering;

    Sammanfattning : Introduction: This master’s thesis focuses on exploring improved alternative material solutions for antenna radomes used to protect Beyond Gravity Sweden’s satellite antennas in low Earth orbits. Background: As the environment in low Earth orbit is harsh, surface materials on satellites experience high levels of atomic oxygen, ultra violet radiation, thermal-fluctuation, charged particles and micro meteoroids. LÄS MER

  3. 2. Application of ERT for Quality Assurance in Jet Grouting Columns; A development of an alternative quality control

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Teknisk geologi; Lunds universitet/Väg- och vattenbyggnad (CI)

    Författare :Edvin Nilsagård; Rebecka Knutsson; [2022]
    Nyckelord :ert; jet grouting; quality control; pygimli; res2dinv; resistivity; Technology and Engineering;

    Sammanfattning : With the increased urbanization major cities are facing, expansion of larger facilities and households are inevitable. Expansion means larger areas of the surface needs to be used where the risk of varying subsurface soil properties increases with larger surface areas. LÄS MER

  4. 3. Effect of climate exposure on mechanical performance of uncured ahdesive joints

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :Rosa Sala Piñol; [2022]
    Nyckelord :Adhesives; uncured; adhesive joints; automotive; epoxy;

    Sammanfattning : Adhesive bonding has become an essential joining method in the automotive industry specially with the recent focus on lightweight reduction. A major limiting factor to the widespread implementation of this joining method is concerns about environmental durability. LÄS MER

  5. 4. Infrared Curing of Glass Fiber Composite Tube : Optimization of the curing cycle

    Master-uppsats, Karlstads universitet/Avdelningen för maskin- och materialteknik

    Författare :Rasmus Fredheim; [2021]
    Nyckelord :;

    Sammanfattning : This thesis has investigated the possibility of optimizing curing time by changing the energy source from a conventional oven to infrared radiation (IR) and if it is possible to achieve similar results as the company's current production of glass fiber composite tubes.   Many different parameters (time, temperature, heating rate, and rotation speed) might influence a cured composite tube's properties. LÄS MER

  7. 5. Bond Strength and Degree of Conversion of Self-Adhesive Resin Cements

    Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Tandläkarutbildning

    Författare :Maya Habib; Johannes Malmhäll; [2021]
    Nyckelord :bond strength; self-adhesive resin cement; degree of conversion;

    Sammanfattning : Abstract  Aim: To determine the shear bond strength of two commercially available self-adhesive resin cements on four different materials and to analyse the degree of conversion (DC) of those resin cements.  Materials and Methods: A total of 45 embedded specimens made of four different materials were prepared for the notched-edge shear bond strength test. LÄS MER