Sökning: "uranium nitride nuclear fuel"

Hittade 5 uppsatser innehållade orden uranium nitride nuclear fuel.

1. 1. 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

3. 2. 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

4. 3. 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

5. 4. Metallic residues after hydriding of zirconium

   Kandidat-uppsats, KTH/Materialvetenskap

   Författare :Patrik Andersson; Carl-Magnus Arvhult; [2012]
   Nyckelord :zirconium hydride; ZrH; nuclear fuel; nitride; metallic residues; hydriding; hydrogenation;

   Sammanfattning : As a part of the production of nitride nuclear fuel for use in fast nuclear reactors, zirconium is hydrided followed by nitriding and mixing with uranium nitride. This work concludes a study of unwanted metallic particles present in a powder that is supposed to be a zirconium hydride. LÄS MER

7. 5. Manufacturing methods for (U-Zr)N-fuels

   Master-uppsats, KTH/Fysik

   Författare :Tobias Hollmer; [2011]
   Nyckelord :nuclear fuel; nitride fuel; uranium nitride; zirconium nitride; spark plasma sintering; solid solution; reaction kinetics; hydriding; nitriding; denitriding; uranium hydride; zirconium hydride; uranium zirconium alloy;

   Sammanfattning : In this work a manufacturing method for UN, ZrN and (U,Zr)N pellets was established at the nuclear fuel laboratory at KTH Stockholm/Sweden, which consists of the production of nitride powders and their sintering into pellets by spark plasma sintering. The nitride powders were produced by the hydriding-nitriding route using pure metal as starting material. LÄS MER