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Showing result 1 - 5 of 29 essays matching the above criteria.

  1. 1. Process parameter optimisation for Waspaloy using Laser-Directed Energy Deposition with Powder

    University essay from Högskolan Väst/Institutionen för ingenjörsvetenskap

    Author : Johannes Lövhall; [2024]
    Keywords : Process parameter optimisation; Waspaloy; Laser-Directed Energy Deposition with Powder;

    Abstract : Material utilisation is of importance in the manufacturing industry formaking the most of each material, minimising waste and increasing cost-effectiveness. In this thesis, samples of Waspaloy built with the method of L-DED-P has been analysed in order to investigate how process pa-rameters influence the build quality and geometrical accuracy in as-builtobjects. READ MORE

  3. 2. Flashlamp Annealing for Improved Ferroelectric Junctions

    University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Institutionen för elektro- och informationsteknik

    Author : Theodor Blom; [2023]
    Keywords : Flashlamp annealing; ferroelectricity; hafnia oxide; III-V semiconductor; thermal annealing; device performance; Technology and Engineering;

    Abstract : The effects of flashlamp annealing (FLA) on the quality of ferroelectric HfxZr1–xO2 (HZO) interfaces, integrated on InAs substrates, are evaluated. For the integration of ferroelectric HZO on III-V semiconductors the crystallization via rapid thermal processing (RTP) can severely degrade the HZO/III-V interface. READ MORE

  4. 3. Investigation of the Plasma delay time in PIPS detectors using the LOHENGRIN spectrometer

    University essay from Uppsala universitet/Tillämpad kärnfysik

    Author : Elizaveta Yakovleva; Ivar Wikander; [2022]
    Keywords : ;

    Abstract : This project has examined the effects of plasma delay time (PDT) and pulse height defect (PHD) for protons, tritons and alpha particles. The goal was to determine PDT and PHD for alpha particles relative to protons, by using data from a subset of measurements taken with a silicon detector of type PIPS at the LOHENGRIN spectrometer. READ MORE

  5. 4. Symmetry Analysis of Orbitals in a Plane Wave Basis : A Study on Molecules and Defects in Solids

    University essay from Linköpings universitet/Teoretisk Fysik

    Author : William Stenlund; [2022]
    Keywords : Point Defect; Divacancy; Symmetry; Group Theory; DFT; Plane Wave; Plane Wave Basis; 4H-SiC;

    Abstract : Modeling and analysing materials with theoretical tools is of great use when finding new systems for applications, for example, semiconductors with point defects can be used for quantum applications, like single photon emitters. One important aspect to consider symmetry, which can yield useful information about the properties of a system. READ MORE

  6. 5. Simulations of current transport phenomena in ferroelectric tunnel junctions

    University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

    Author : Ivan Lubar; [2022]
    Keywords : Technology and Engineering;

    Abstract : Ferroelectric memories pose as a potential candidate as resistive memory devices that could be used for in-memory computing and artificial synapses. One promising type of ferroelectric memory device is the ferroelectric tunnel junction (FTJ). READ MORE