Sökning: "Martin Gren"

Hittade 3 avhandlingar innehållade orden Martin Gren.

  1. 1. Atomic-scale modelling of interfaces in cemented carbides: wetting and strength

    Författare :Martin Gren; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; adhesion; density functional theory; hardmetals; cemented carbides; WC-Co; surfaces; interfaces; grain boundaries; wetting; phase boundaries;

    Sammanfattning : Cemented carbides are composite materials of great technological and industrial importance. They have a unique combination of hardness and toughness and are therefore used widely as tool materials in applications where both high hardness and toughness are demanded. These applications include among others: mining, turning, cutting and milling. LÄS MER

  3. 2. Earth writing : exploring representation and social geography in-between meaning/matter

    Författare :Martin Gren; Högskolan i Kalmar; []
    Nyckelord :Human Geography; Kulturgeografi; Geography;

    Sammanfattning : .... LÄS MER

  4. 3. Temperature dependent atomic-scale modeling of interfaces in cemented carbides

    Författare :Martin Gren; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; hardmetals; analytical bond order potential; wetting; WC-Co; density functional theory; free energies; interfaces; complexions; cemented carbides; phase diagram;

    Sammanfattning : Material properties can now be calculated directly from first principles using density functional theory (DFT) which has a great predictive power and can, in cases that are difficult to approach experimentally, provide crucial insights on the atomic and electronic level. Such cases include the thermodynamics of interfaces and surfaces which are crucial factors for the structure and macroscopic properties of many materials, where cemented carbides are one example. LÄS MER