Sökning: "thin films"

Visar resultat 36 - 40 av 716 avhandlingar innehållade orden thin films.

  1. 36. Deposition and Phase Transformations of Ternary Al-Cr-O Thin Films

    Författare :Ali Khatibi; Lars Hultman; Per Eklund; Jon Andersson; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Thin Films; Hard Coatings; Mathematical physics; Matematisk fysik;

    Sammanfattning : This thesis concerns the ternary Al-Cr-O system. (Al1-xCrx)2O3 solid solution thin films with 0.62 gas mixture. As-deposited and annealed (Al1-xCrx)2O3 thin films were analyzed by x-ray diffraction, elastic recoil detection analysis, scanning electron microscopy, transmission electron microscopy, and nanoindentation. LÄS MER

  3. 37. Nanostructuring and Age Hardening in TiSCN, ZrAlN, and TiAlN Thin Films

    Författare :Lars Johnson; Lars Hultman; Axel Flink; Linköpings universitet; []
    Nyckelord :thin films; age hardening; spinodal decomposition; TiSiCN; ZrAlN; TiAlN; Transmission electron microscopy; Atom probe tomography; NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : This thesis explores nanostructuring in TiSiCN, ZrAlN, and TiAlN thin films deposited by cathodic arc evaporation onto cemented carbide substrates, with intended applications for cutting tools. The three systems were found to exhibit age hardening upon annealing, by different mechanisms, into the superhard regime (≥30 GPa), as determined by a combination of electron microscopy, X-ray diffraction, atom probe tomography, erda, and nanoindentation tech- niques. LÄS MER

  4. 38. Microstructural evolution of thin epitaxial Perovskite films

    Författare :Lars Ryen; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; superlattice; filmm growth; interfacial strain; YBa2Cu3O7-x; HREM; SrTiO3; misfit dislocation; thin film; microstructure; TEM; perovskite;

    Sammanfattning : .... LÄS MER

  5. 39. Tailoring and Characterisation of Nickel Silicide Thin Films on Silicon Carbide

    Författare :S. A. Perez-Garcia; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; thin films; silicon carbide; nickel silicide; characterisation;

    Sammanfattning : .... LÄS MER

  7. 40. Magnetism in Band Gap Engineered Sputtered MgxZn(1-x)O Thin Films

    Författare :Sreekanth Mahadeva; K Venkat Rao; Lyubov Belova; Mark Fox; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Magnetron co-sputtering; MgO; MgxZn 1-x O; MnxMg 1-x O; thin films; Room-temperature ferromagnetism; band gap engineering; and intrinsic defects;

    Sammanfattning : This dissertation presents a comprehensive study of the intrinsic room temperature ferromagnetism, RTFM, in technologically important thin films of ZnO, MgO, Mg@ZnO, the so-called d0–magnets that do not contain any intrinsic magnetic elements. We also present the first report on magnetism in Mn doped MgO films fabricated by dc magnetron sputtering. LÄS MER