Search for dissertations about: "Hans Högberg"

Showing result 1 - 5 of 6 swedish dissertations containing the words Hans Högberg.

  1. 1. Low-temperature deposition of epitaxial transition metal carbide films and superlattices using C60 as carbon source

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Hans Högberg; Uppsala universitet.; [2000]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Chemistry; fullerene; transition metals; carbides; low-temperature epitaxy; superlattices; Kemi; NATURAL SCIENCES Chemistry; NATURVETENSKAP Kemi; Inorganic Chemistry; oorganisk kemi;

    Abstract : The transition metal carbides are chemical compounds with a unique set of propertiesused in many thin film applications. In this work, thin films of group 4-5 transitionmetal carbides and superlattices were deposited at low temperatures by simultaneousevaporation of C60 using either metal e-beam evaporation or d.c. magnetron sputtering. READ MORE

  2. 2. Some properties of measures of disagreement and disorder in paired ordinal data

    University dissertation from Örebro : Örebro university

    Author : Hans Högberg; Örebro universitet.; [2010]
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; agreement; augmented ranks; categorical data; disorder; jackknife; paired ordinal data; rating scales; sample size; sampling distribution; simulation; U-statistics; variance; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES Statistics; computer and systems science Statistics; SAMHÄLLSVETENSKAP Statistik; data- och systemvetenskap Statistik; Statistics; Statistik;

    Abstract : The measures studied in this thesis were a measure of disorder, D, and a measure of the individual part of the disagreement, the measure of relative rank variance, RV, proposed by Svensson in 1993. The measure of disorder is a useful measure of order consistency in paired assessments of scales with a different number of possible values. READ MORE

  3. 3. Multifunctional nanostructured Ti-Si-C thin films

    University dissertation from Institutionen för fysik, kemi och biologi

    Author : Per Eklund; Lars Hultman; Hans Högberg; G. Ramanath; [2007]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TECHNOLOGY Engineering physics Material physics with surface physics; TEKNIKVETENSKAP Teknisk fysik Materialfysik med ytfysik;

    Abstract : In this Thesis, I have investigated multifunctional nanostructured Ti-Si-C thin films synthesized by magnetron sputtering in the substrate-temperature range from room temperature to 900 °C. The studies cover high-temperature growth of Ti3SiC2 and Ti4SiC3, low-temperature growth of Ti-Si-C nanocomposites, and Ti-Si-C-based multi¬layers, as well as their electrical, mechanical, and thermal-stability properties. READ MORE

  4. 4. Thick and Thin Ti2AlC Coatings

    University dissertation from Linköping : Linköping University Electronic Press

    Author : Jenny Frodelius; Lars Hultman; Per Eklund; Hans Högberg; Lars Nyborg; [2010]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURAL SCIENCES; NATURVETENSKAP;

    Abstract : This Thesis explores the deposition techniques of magnetron sputtering and high velocity oxy-fuel (HVOF) spraying for Ti2AlC as a promising high-temperature material. Magnetron sputtering aims at producing thin (≤1 μm) Ti2AlC films of high crystal quality for use as a model system in understanding the material’s basic properties. READ MORE

  5. 5. Nanocrystalline Alumina-Zirconia Thin Films Grown by Magnetron Sputtering

    University dissertation from Linköping : Linköping University Electronic Presws

    Author : David Huy Trinh; Hans Högberg; Marianne Collin; Lars Hultman; Ingrid Reineck; Mats Halvarsson; [2008]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURAL SCIENCES; NATURVETENSKAP;

    Abstract : Alumina-zirconia thin films have been deposited using dual magnetron sputtering. Film growth was performed at relatively low-to-medium temperatures, ranging from ~300°C to 810 °C. Different substrates were applied, including silicon (100), and industrially relevant materials, such as WC-Co hardmetal. READ MORE