Search for dissertations about: "Vickers test"

Showing result 1 - 5 of 7 swedish dissertations containing the words Vickers test.

  2. 1. On indentation methods for characterization of inelastic materials

    Author : Susanna Carlsson; KTH; []
    Keywords : indentation test; material characterization; hardness; contact area; viscoelasticity; creep; plasticity; friction; residual stress; residual strain; Brinell test; Boussinesq test; Vickers test;

    Abstract : .... READ MORE

  4. 2. Analysis of thermal shock in brittle materials

    Author : Marianne Collin; KTH; []
    Keywords : thermal shock; thermal stress; stress intensity; vickers indentation; alumina; silicon varbide whisker reinforced alumina;

    Abstract : This thesis concerns thermal shock damage of ceramicmaterials. More specifically the work is focused on theoreticaland practical aspects of a new technique for determining thethermal shock resistance of brittle materials. READ MORE

  5. 3. Molar Incisor Hypomineralization

    Author : Tobias G Fagrell; Göteborgs universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Teeth; Molar Insicor Hypomineralisation; hypomineralisation; Enamel; Etiology; ozone; Scanning electron microscopy;

    Abstract : Overall aim: The general objective of this thesis was to enhance the understanding of Molar Incisor Hypomineralization (MIH) in areas of the histological, chemical and mechanical properties of the hypomineralized enamel, objective and subjective clinical symptoms in relation to bacteria findings. Further, to estimate a time for onset of the disturbance and investigate possible etiological factors. READ MORE

  6. 4. On translucent yttria stabilized zirconia ceramics: Mechanical considerations, phase transformation and cement choices

    Author : Sebastian Franco Tabares; Göteborgs universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; zirconia; translucent; yttria; air-borne particle abrasion; 10-MDP; cement;

    Abstract : New zirconia formulations (4Y and 5Y-zirconias) have been introduced for prosthodontic therapy and are commercialized as “translucent” zirconias. No clinical information providing their survival rates or complications has been provided to the date. READ MORE

  7. 5. Characterization of Ceramic Raw Minerals in Uganda for Production of Electrical Porcelain Insulators

    Author : Peter Wilberforce Olupot; Stefan Jonsson; Thomas Johansson; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electrical porcelain; glaze; characterisation; multite; quartz; Uganda; Materials science; Teknisk materialvetenskap;

    Abstract : In this work an extended literature survey on ceramics and porcelains in particular, has been documented. Samples from two Ugandan deposits of each feldspar and quartz were characterised by means of X-ray diffraction, thermal analysis, chemical analysis and scanning electron microscopy and found to possess requisite properties for making electro porcelain insulators. READ MORE