Sökning: "ferrite"

Visar resultat 6 - 10 av 58 uppsatser innehållade ordet ferrite.

  1. 6. Microstructural characterization of quench annealed duplex SAF 2507 utilizing EBSD

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

    Författare :Simon Beyermann; [2022]
    Nyckelord :sigma phase; chi phase; electron backscatter diffraction; super duplex stainless steel; recrystallization; SAF 2507 UNS S32750 .;

    Sammanfattning : Producing large bars of duplex stainless steel free from precipitated embrittling phases isdifficult due to the many factors that influence precipitation. Research shows that intermetallicslike sigma and chi deteriorate principal material properties for the main application areas. LÄS MER

  3. 7. Magnetically tunable microwave resonator/filter

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Zhi Ye; [2022]
    Nyckelord :Magnetic tuning; Ferrite; Substrate integrated waveguide resonator; Substrate integrated waveguide filter; Magnetisk inställning; Ferrit; Substratintegrerad vågledarresonator; Substratintegrerad vågledarfilter;

    Sammanfattning : The magnetic tunability of ferrites has been studied and applied on many electric components for working in various frequency bands. Filters or resonators loaded by ferrites can thus work for different frequency requirements by tunning external biasing field. However, filters or resonators built by traditional waveguides are large in size. LÄS MER

  4. 8. Concept Population & Verification of Traction Motors

    Master-uppsats, KTH/Fordonsdynamik

    Författare :Aditya Pratap Singh; [2021]
    Nyckelord :Synchronous Reluctance Motor SynRM ; Permanent Magnet Synchronous Motor PMSM ; Permanent Magnet assisted SynRM PM-SynRM ; traction motors; electrical machines; Synkron Reluktansmotor; Permanent Magnet Synkron motor; Permanent Magnet assisterad Synkron motor; framdrivningsmotorer; elmotorer;

    Sammanfattning : The electrification of automobiles has emerged as the sustainable powertrain solutionto meet United Nations sustainable development goals of sustainable cities andcommunities, affordable and clean energy, and climate action. The success of theelectrification depends on the efficiency of traction motors. LÄS MER

  5. 9. Permanent magnet synchronous machine using ferrite vs rare earth magnets : how do they compare?

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Nikhil Manakshya; [2021]
    Nyckelord :Vehicle requirement; drive cycle; ferrite magnet; demagnetisation; environmental impact.; Fordonsbehov; körcykel; ferritmagnet; avmagnetisering; miljöpåverkan.;

    Sammanfattning : Permanent magnet synchronous machines (PMSM are considered as viable options for automotive and traction applications. Rare earth magnets such as Neodymium Iron Boron (NdFeB is the most common choice in the PMSM for electric vehicles to achieve high power density machines. LÄS MER

  7. 10. Optimisation of local material parameters : Optimising local material parameters in ductile cast iron cylinder head casting

    Magister-uppsats, Jönköping University/JTH, Material och tillverkning

    Författare :Katri Mäkinen; [2021]
    Nyckelord :Casting simulation; Material parameter; Ductile cast iron; Optimisation; Local material parameters; Silicon content; Pearlite; Ferrite;

    Sammanfattning : The constantly tightening emission regulations demand the engines to be moreefficient, to get more power out of smaller engines. Higher engine loads andcomponent temperatures are causing more stresses to engine components. LÄS MER