Sökning: "VN"

Visar resultat 1 - 5 av 31 avhandlingar innehållade ordet VN.

  1. 1. Aspects of microstructural evolution in chromium steels in high temperature applications

    Författare :Åsa Gustafson; KTH; []
    Nyckelord :Cr-steels; nucleation; coarsening; model; DICTRA; precipitates; carbides; carbo-nitrides; MX; VN; M23C6; TiC; TEM; EFTEM; Curie-temperature;

    Sammanfattning : In this thesis 9-12 % Cr steels, used for high-temperaturecomponents in fossil-fired power plants are considered. Thecreep strength of thees steels depend on their microstructurethat consists of a matrix of tempered lath martensite withdensely distributed precipitates. LÄS MER

  3. 2. Reactivity of Metal Clusters with Diatomic Molecules

    Författare :Lotta Holmgren; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Nbn; cluster; reactivity; Rhn; NO; D2; CO; N2; laser vaporization; Wn; Nin; photoionization; time-of-flight mass spectrometer; ionization potential; Cun; O2; Vn;

    Sammanfattning : The reactivity of transition-metal clusters, in the approximate size range 10-60 atoms, with diatomic molecules has been investigated. A pulsed beam of neutral clusters is produced by a laser-vaporization source and passed through a low-pressure reaction cell containing the reactive gas. LÄS MER

  4. 3. La formation agentive en français : les composés [VN/A/Adv/P]N/A et les dérivés V-ant, V-eur et V-oir(e)

    Författare :Maria Rosenberg; Olof Eriksson; Mats Forsgren; Georgette Dal; Bernard Fradin; Stockholms universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; HUMANIORA; HUMANITIES; agentive formations; agent nouns; compounds; contrastive; derivations; diachrony; French; instrument; lexeme; morphology; polysemy of agent; productivity; semantic patterns; semantics; Swedish; synchrony; VN compounds; verb stem; word formation; French language; Franska språket; French; franska;

    Sammanfattning : This study addresses the French morphological construction [VN/A/Adv/P]N/A. The main objectives are to posit a single rule for its formation and to question the implications of the agent polysemy. The theoretical framework is lexeme-based morphology, which adheres to weak lexicalism. LÄS MER

  5. 4. Les composés [VN/A]N/A en français : Aspects morphologiques et sémantiques

    Författare :Maria Rosenberg; Olof Eriksson; Mats Forsgren; Stockholms universitet; []
    Nyckelord :Linguistics; lingvistik;

    Sammanfattning : .... LÄS MER

  7. 5. Multiscale Modeling of Interfaces

    Författare :Sven Johansson; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; misfit; Peierls-Nabarro model; semicoherent interfaces; interfaces; cemented carbides; grain boundaries; microstructure; VN precipitates; density-functional theory;

    Sammanfattning : Understanding strength and stability of interfaces between dissimilar materials or phases is a highly active field of contemporary materials research. Knowledge of interface structure and energetics is important for modeling of complex materials both on a mechanical and thermodynamical level as well as for many functional properties. LÄS MER