Search for dissertations about: "Boride"

Showing result 1 - 5 of 6 swedish dissertations containing the word Boride.

  1. 1. Synthesis and Characterization of Multifunctional Carbide- and Boride-based Thin Films

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Nils Nedfors; Uppsala universitet.; [2014]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; thin film; coating; magnetron sputtering; nanocomposite; boride; carbide; electrical properties; mechanical properties; Kemi med inriktning mot materialkemi; Chemistry with specialization in Materials Chemistry;

    Abstract : This thesis present research on synthesis, microstructure, and properties of carbide- and boride- based thin films. The films have been synthesized by dc magnetron sputtering, and their microstructures have been characterized mainly by X-ray photoelectron spectroscopy (XPS), X-ray diffraction, and transmission electron microscopy. READ MORE

  2. 2. Atom Probe Tomography of Hard Nitride and Boride Thin Films

    University dissertation from Linköping : Linköping University Electronic Press

    Author : David L. J. Engberg; Linköpings universitet.; Linköpings universitet.; [2019]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Materials science; Atom probe tomography APT ; Ceramics; Nitrides; Borides;

    Abstract : Hard ceramic thin films, including TiSiN, ZrAlN, ZrB2, and ZrTaB2, with applications for wear-resistant coatings, have been studied using atom probe tomography and correlated with several other analytical techniques, including X-ray diffraction, electron microscopy, and elastic recoil detection analysis. Outstanding obstacles for quantitative atom probe tomography of ceramic thin films have been surmounted. READ MORE

  3. 3. A critical survey of the grain refining mechanisms of aluminium

    University dissertation from Stockholm : Stockholm University

    Author : Mats Johnsson; Stockholms universitet.; [1993]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; strukturkemi; Structural Chemistry;

    Abstract : In the present work, several possible interpretations of the grain refining mechanisms of aluminium castings after additions of titanium and boron are compared with the results of critical test experiments. The presence of B does not seem to affect the binary Al-Ti phase diagram close to the A1 comer, except for formation of boride phase. READ MORE

  4. 4. Preparation and characterisation of refractory whiskers and selected alumina composites

    University dissertation from Stockholm : Institutionen för fysikalisk kemi, oorganisk kemi och strukturkemi

    Author : Mats Carlsson; Stockholms universitet.; [2004]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; VLS-growth; Characterisation; Whiskers; Sintering; Ceramic composites; NATURAL SCIENCES Chemistry Inorganic chemistry; NATURVETENSKAP Kemi Oorganisk kemi;

    Abstract : A whisker is a common name of single crystalline inorganic fibre of small dimensions, typically 0.5-1 μm in diameter and 20-50 μm in length. Whiskers are mainly used as reinforcement of ceramics. This work describes the synthesis and characterisation of new whisker types. READ MORE

  5. 5. Magnetron sputtering of binary, ternary and multicomponent thin film borides and carbides

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Paulius Malinovskis; Uppsala universitet.; [2018]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Design of new thin film materials with improved properties and functionality is an important research field in materials science. In this thesis, I have used magnetron sputtering to deposit new thin film materials, which should combine high hardness and high ductility with other properties such as low friction or a good corrosion resistance. READ MORE