Search for dissertations about: "EELS"

Showing result 11 - 15 of 44 swedish dissertations containing the word EELS.

  2. 11. Synthesis and Characterisation of Magnetron Sputtered Alumina-Zirconia Thin Films

    Author : David Huy Trinh; Hans Högberg; Anders Hårsta; Linköpings universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Alumina; Zirconia; NaKeywords: Alumina; Zirconia; Nanocomposite; Sputtering; Thin-Film; PVD; TEM; EELS; Materials science; Teknisk materialvetenskap;

    Abstract : Alumina-Zirconia thin films were grown on a range of substrates using dual magnetron sputtering. Film growth was achieved at a relatively low temperature of 450 °C and at higher temperatures up to 810 °C. The films were grown on well-defined surfaces such as silicon (100) but also on industrially relevant substrates such as hardmetal (WC-Co). READ MORE

  4. 12. Synthesis and Characterisation of Carbide Derived Carbons

    Author : Sigita Urbonaite; Gunnar Svensson; Mats Johnsson; Rik Brydson; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Carbide derived carbons; Gas adsorption; EELS; Raman; Porous carbons; Chemistry; Kemi; strukturkemi; Structural Chemistry;

    Abstract : Carbide derived carbons (CDCs) have been synthesised through chlorination of VC, TiC, WC, TaC, NbC, HfC and ZrC at different temperatures. The aim of the investigation was to systematically study changes of structural and adsorption properties depending on the synthesis conditions. READ MORE

  5. 13. Development of Cermet Microstructures during Sintering and Heat-Treatment

    Author : Jenni Zachrisson; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; APFIM; EELS; cemented carbides; quantitative microanalysis; gradients; N ; TEM; EFTEM; hardmetals; EDX; Ti C; light elements;

    Abstract : The work presented in this thesis is concerned with the microstructure of Ti(C, N) based cermet materials used in cutting tool applications. Several techniques have been used to study the microstructure of cermets, in particular transmission electron micro-scopy in combi-na-tion with energy dispersive X-ray analysis and electron energy-loss spectroscopy, energy-filtered transmission electron micro-scopy, atom-probe field-ion microscopy and scanning electron microscopy. READ MORE

  6. 14. Migration of European silver eels Anguilla anguilla : orientation to the earth's magnetic field and pulpmill effluents particularly in the Baltic

    Author : Lars Karlsson; Uppsala universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP;

    Abstract : .... READ MORE

  7. 15. Microstructure of a cubic boron nitride tool material and its degradation during hard turning operations

    Author : Jenny Angseryd; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; EDX; adherent layer; cBN; PCBN; SEM; TEM; EELS and APT; wear; EFTEM;

    Abstract : Abstract. Polycrystalline cubic boron nitride (PCBN) materials are widely used in turning operations of hardened steels due to their beneficial mechanical properties like maintained high hardness at elevated temperatures, adequate toughness and for being more chemically stable towards iron compared to diamond at temperatures typical for turning operations. READ MORE