Sökning: "röntgendiffraktion XRD"

Visar resultat 1 - 5 av 14 uppsatser innehållade orden röntgendiffraktion XRD.

  1. 1. In Situ Heating During XRD Measurements as a Method to Study Recrystallisation of Aluminium Alloy AA3003

    Master-uppsats, Linköpings universitet/Institutionen för fysik, kemi och biologi

    Författare :Louise Bäckström; [2018]
    Nyckelord :In situ XRD; in situ heat treatment; recrystallisation; rolled aluminium; AA3003;

    Sammanfattning : Recrystallisation is an important topic in the metal industry since the process may drastically alter the properties of the materials subjected to it. By controlling the recrystallisation process, the material properties can be adjusted as desired, which could lead to stronger materials and hence lighter constructions, decreasing our material consumption. LÄS MER

  2. 2. The development of scanning X-ray diffraction phase mapping techniques using automated Rietveld refinements.

    Master-uppsats, Lunds universitet/Fasta tillståndets fysik; Lunds universitet/Fysiska institutionen

    Författare :Johannes Brask; [2018]
    Nyckelord :Retained austenite X-ray diffraction XRD Scanning X-ray diffraction SXRD; Physics and Astronomy;

    Sammanfattning : A methodology for determining inhomogeneities in microstructural features has been established using scanning X-ray diffraction (SXRD) and automated Rietveld refinements. The method has proven successful for spatially resolved quantitative phase analysis or "phase mapping" of retained austenite on a variety of martensitic steel samples, including carbon case-hardened steel bars and quenching and partitioning (Q&P) steel sheets. LÄS MER

  3. 3. Intermetallic Compound Formation in Ni-Ti-Fe Powder Mixtures

    Master-uppsats, Lunds universitet/Materialteknik

    Författare :Tea Bertilsson; [2018]
    Nyckelord :Phase Evolution; Ni-Ti-Fe System; Intermetallics; Powder Metallurgy; Reactive Sintering; DSC; SEM; EDS; XRD; Technology and Engineering;

    Sammanfattning : The Ni-Ti system has a broad range of applications, in areas as diverse as biomedicine and robotics. This is in large due to the NiTi intermetallic compound, which exhibits the shape memory effect. In addition to this property, the intermetallic compound is also biocompatible, has good mechanical properties and good corrosion resistance. LÄS MER

  4. 4. Processing and characterization of self-aligned Ni/Al and Co ohmic contacts to 4H-SiC

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

    Författare :Andrea Ferrario; [2018]
    Nyckelord :;

    Sammanfattning : New self-aligned silicide processes for the realization of Ni/Al and Co contacts to silicon carbide (4H-SiC) are presented and contacts are characterized using the transfer length method (TLM). Since cobalt silicide formation on 4H-SiC has not been investigated before, interface reaction between Co and 4H-SiC as well as the study on the annealing temperatures constitute an essential part of this work. LÄS MER

  5. 5. Absorption av CO2 i ammoniaklösning

    Kandidat-uppsats, KTH/Industriell ekologi; KTH/Industriell ekologi

    Författare :Gustavsson Joakim; Lager Niclas; [2017]
    Nyckelord :;

    Sammanfattning : I detta arbete studeras absorption av växthusgasen koldioxid (CO2) i ammoniaklösning. Målet med arbetet är att undersöka hur väl teknik med vegetabilisk olja kan förhindra avdunstning av ammoniaklösning vid absorptionen och på så vis främja grön kemi. En jämförelse görs sedan med en mer beprövad teknik med nedkylning. LÄS MER