Search for dissertations about: "interfacial strain"

Showing result 1 - 5 of 31 swedish dissertations containing the words interfacial strain.

  1. 1. Quantitative Electron Microscopy Studies of Metal Nanoparticle Catalysts: Nanostructure, Support Interaction and Ageing Effects

    University dissertation from Chalmers University of Technology

    Author : Torben Nilsson Pingel; Chalmers tekniska högskola.; Chalmers University of Technology.; [2017]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; transmission electron microscopy TEM ; FIB SEM; strain; scanning electron microscopy SEM ; supported nanoparticle catalyst; CO oxidation; specimen preparation; ageing; particle size distribution PSD ; platinum;

    Abstract : Heterogeneous catalysis plays a major role in modern society, for example in chemical production, sustainable energy production and emission control technologies. Metal nanoparticles (NPs) supported on oxide materials are frequent catalytic systems in this field. READ MORE

  2. 2. Micro-mechanical mechanisms for deformation in polymer-material structures

    University dissertation from Stockholm : KTH

    Author : Jessica Strömbro; KTH.; [2008]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Length-scale effects; Strain gradient; Moisture change; Humidity change; Network model; Fibre model; Mathematical model; Polymer; Micro-indentation; Particle composite; Interfacial debonding; Matrix cracking; Paper; Mechano-sorptive creep; Accelerated creep; TECHNOLOGY Materials science Other materials science; TEKNIKVETENSKAP Teknisk materialvetenskap Övrig teknisk materialvetenskap;

    Abstract : In this thesis, the focus has been on micro-mechanical mechanisms in polymer-based materials and structures. The first part of the thesis treats length-scale effects on polymer materials. Experiments have showed that the smaller the specimen, the stronger is the material. READ MORE

  3. 3. Microstructural evolution of thin epitaxial Perovskite films

    University dissertation from Chalmers University of Technology

    Author : Lars Ryen; Chalmers tekniska högskola.; Chalmers University of Technology.; [1997]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; microstructure; TEM; HREM; thin film; perovskite; YBa2Cu3O7-x; SrTiO3; misfit dislocation; interfacial strain; filmm growth; superlattice;

    Abstract : .... READ MORE

  4. 4. Exploring Biopolymer-Clay Nanocomposite Materials by Molecular Modelling

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Yan Wang; KTH.; [2015]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; bio-nanocomposite; interfacial mechanism; binding affinity; dimensional stability; counterions; hydration; stress-strain behavior; xyloglucan; chitosan; chitin; molecular dynamics; montmorillonite.; 生物复合材料,界面机理,分子间亲和力,材料尺寸稳定性,抗衡离子,水合作用,应力应变表现, 木葡聚糖,壳聚糖,甲壳素,分子动力学模拟,蒙脱土; bio-nanokompositer; gränsytor; affinitet; dimensionsstabilitet; jonhydrering; spännings-töjningsbeteende; xyloglukan; kitosan; kitin; molekyldynamisk; montmorillonit.; Kemi; Chemistry; Fiber- och polymervetenskap; Fibre and Polymer Science; Materials Science and Engineering; Teknisk materialvetenskap;

    Abstract : In this thesis, bio-nanocomposites made from two alternative biopolymers and montmorillonite (Mnt) clay have been investigated by molecular modelling. These biopolymers are xyloglucan (XG) and chitosan (CHS), both of which are abundant, renewable, and cost-effective. READ MORE

  5. 5. Strengthening steel beams with adhesively bonded composite laminates

    University dissertation from Chalmers University of Technology

    Author : Dag Linghoff; Chalmers tekniska högskola.; Chalmers University of Technology.; [2006]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Övrig samhällsbyggnadsteknik och arkitektur; Other civil engineering and architecture; Strengthening; CFRP laminate; adhesive bond; interfacial stresses.;

    Abstract : Strengthening steel structures with carbon-fibre-reinforced-polymer (CFRP) laminates bonded to the steel substrate has become an interesting alternative to the conventional strengthening methods. The current research comprises analyses of the global and local behaviour of double-symmetrical steel beams strengthened with CFRP laminate bonded with adhesive to the tension flange. READ MORE