Search for dissertations about: "twist grain boundary phase"

Found 3 swedish dissertations containing the words twist grain boundary phase.

  1. 1. An Antiferroelectric Twist Grain Boundary Phase

    University dissertation from Chalmers University of Technology

    Author : Johann Georg Meier; Chalmers tekniska högskola.; Chalmers University of Technology.; [2002]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Teknisk materialvetenskap; Materials science; twist grain boundary phase; antiferroelectric liquid crystals; liquid crystals;

    Abstract : .... READ MORE

  2. 2. Atomistic modeling of interfaces in WC-Co cemented carbides

    University dissertation from Chalmers University of Technology

    Author : Martin Petisme; Chalmers tekniska högskola.; Chalmers University of Technology.; [2015]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; cemented carbides; WC-Co; interfaces; grain boundaries; grain boundary sliding; weing; density functional theory; analytic bond order potentials; molecular dynamics;

    Abstract : Grain and phase boundaries are crucial in understanding the properties of real materials. In this thesis, interfaces in WC–Co cemented carbide are modeled atomistically using density functional theory (DFT) and analytic interatomic potentials. READ MORE

  3. 3. Micromechanical modeling of cleavage fracture in polycrystalline materials

    University dissertation from Stockholm : KTH

    Author : Mateusz Stec; KTH.; [2008]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; cleavage fracture; probabilistic modeling; brittle to ductile transition; cohesive zone; visco-plastic material; TECHNOLOGY Engineering mechanics; TEKNIKVETENSKAP Teknisk mekanik; TECHNOLOGY Other technology; TEKNIKVETENSKAP Övriga teknikvetenskaper;

    Abstract : Cleavage fracture in ferritic steels can be defined as a sequence of few critical steps. At first nucleation of a microcrack takes place, often in a hard inclusion. This microcrack then propagates into the surrounding matrix material. The last obstacle before failure is the encounter of grain boundaries. READ MORE