Sökning: "uranium nitride"

Visar resultat 1 - 5 av 9 uppsatser innehållade orden uranium nitride.

  1. 1. Uranium nitride synthesis by gas/gas reaction of UF6 and NH3

    Master-uppsats, KTH/Fysik

    Författare :Serena Ambrosino; [2024]
    Nyckelord :Uranium nitride; synthesis; ammonolysis; uranium hexafluoride; uranium tetrafluoride; ammonia; X-ray diffraction; microscopy; Urannitrid; syntes; ammonolys; uranhexafluorid; urantetrafluorid; ammoniak; röntgendiffraktion; mikroskopi;

    Sammanfattning : This thesis project aims to develop an innovative technique for the production of high-purity uranium nitride (UN) through the ammonolysis of fluorides. The desired objective is to perform a controlled gas/gas reaction between uranium hexafluoride (UF6) and ammonia (NH3) at 800°C. LÄS MER

  3. 2. Experimental studies of radiation damage in uranium nitride

    Master-uppsats, KTH/Fysik

    Författare :Maria Giamouridou; [2023]
    Nyckelord :uranium nitride nuclear fuel; advanced nuclear fuel; uranium nitride fabrication; uranium nitride characterisation; Spark Plasma Sintering; proton irradiation; irradiation damage; TANDEM accelerator; irradiation induced cracking; irradiation induced hardening; irradiation induced swelling; hydrogen implantation; dislocation loops; kärnbränsle av urannitrid; avancerat kärnbränsle; tillverkning av urannitrid; karakterisering av urannitrid; Spark Plasma Sintering; protonbestrålning; strålningsskador; TANDEM-accelerator; strålningsinducerad sprickbildning; strålningsinducerad härdning; strålningsinducerad svällning; väteimplantation; dislokationsloopar;

    Sammanfattning : The effect of proton (H+) irradiation on uranium mononitride (UN) and UN compositefuel with 10 at.% ZrN (UN10at%ZrN) was examined. Protons of 2 MeV with fluences of1E17, 1E18, 1E19 and 1E20 ions/cm2 were accelerated towards the fabricated samples in orderto investigate the evolution of the micro-structure. LÄS MER

  4. 3. Uncertainty & Sensitivity Analysis of Nuclear Fuel Using Transuranus & Dakota

    Master-uppsats, KTH/Fysik

    Författare :Udyanth Vaidya; [2021]
    Nyckelord :Nuclear; Nuclear Energy; SUNRISE; Transuranus; Dakota; LFR; Lead cooled fast reactor; Simulations; modelling; fuel performance code;

    Sammanfattning : With the initiative taken by the SUNRISE project (Sustainable Nuclear Energy Research in Sweden) to construct a Lead-cooled research reactor, this thesis intends to extend the knowledge within nuclear fuel development. By using integral iterative modelling and simulating techniques that mimic real-world phenomena, novel fuel materials like uranium nitride are assessed for future validation. LÄS MER

  5. 4. Identification of Silicon Phases in Highly Dense Uranium Nitride Pellets

    Master-uppsats, KTH/Fysik

    Författare :Patrik Sirén; [2015]
    Nyckelord :;

    Sammanfattning : .... LÄS MER

  7. 5. Thermal Conductivity of Uranium Mononitride

    Master-uppsats, Linköpings universitet/Tunnfilmsfysik

    Författare :Mikael Valter; [2015]
    Nyckelord :uranium nitride; porosity; thermal conductivity; laser flash analysis; nuclear fuel;

    Sammanfattning : Thermal conductivity is a crucial parameter for nuclear fuel, as it sets an upper limit on reactor operating temperature to have safety margins. Uranium mononitride (UN) is a prospective fuel for fast reactors, for which limited experimental studies have been conducted, compared to the currently dominating light-water reactor fuel, uranium dioxide. LÄS MER