Sökning: "TiB2"

Visar resultat 1 - 5 av 15 avhandlingar innehållade ordet TiB2.

  1. 1. Development and tribological characterisation of magnetron sputtered TiB2 and Cr/CrN coatings

    Författare :Mattias Berger; Uppsala universitet; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; Materials science; TiB2; Tribology; Magnetron Sputtering; Materialvetenskap; Materials science; Teknisk materialvetenskap; materialvetenskap; Materials Science;

    Sammanfattning : The aim of this thesis was to develop wear resistant physical vapour deposited coatings of TiB2 as well as multilayers of Cr/CrN. The correlation between deposition parameters and fundamental coating properties such as microstructure, composition, residual stress and hardness has been investigated. LÄS MER

  2. 2. Spark Plasma Sintering Enhancing Grain Sliding, Deformation and Grain Size Control : Studies of the Systems Ti, Ti/TiB2, Na0.5 K0.5 NbO3, and Hydroxyapatite

    Författare :Mirva Eriksson; Zhijian Shen; Takashi Goto; Stockholms universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Spark plasma sintering; plastic deformation; grain growth; titanium; TiB2; hydroxyapatite; Na0.5K0.5NbO3; ferroelectric; transparent; Materials chemistry; Materialkemi; materialkemi; Materials Chemistry;

    Sammanfattning : The unique features of the Spark plasma sintering (SPS) were used to investigate the sintering and deformation behaviour of titanium and titanium–titanium diboride composites, and to control the sintering and grain growth of ferroelectric Na0.5K0.5NbO3 (NKN) and of hydroxyapatite (HAp). LÄS MER

  3. 3. On the processing of aluminium-C/TiC/TiB2 composites

    Författare :Lena Svendsen; KTH; []
    Nyckelord :;

    Sammanfattning : .... LÄS MER

  4. 4. Spark plasma sintering and deformation behaviour of Titanium and Titanium/TiB2Spark plasma sintering and deformation behaviour of Titanium and Titanium/TiB2 composites

    Författare :Mirva Eriksson; Zhijian Shen; Guocai Chai; Stockholms universitet; []
    Nyckelord :materialvetenskap; Materials Science;

    Sammanfattning : Titanium has been used as a model substance to study how it behaves in a SPS apparatus when heating rate and/or pressure were varied during the sintering and deformation process. The sintering and deformation of Ti in SPS were compared with that occurring in the conventional hot pressing (HP) in order to reveal if there are any positive effects added by the use of SPS. LÄS MER

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

    Författare :Mats Carlsson; Mats Johnsson; Tor Grande; Stockholms universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; VLS-growth; Characterisation; Whiskers; Sintering; Ceramic composites; Inorganic chemistry; Oorganisk kemi;

    Sammanfattning : 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. LÄS MER