Search for dissertations about: "spinodal decomposition"

Showing result 1 - 5 of 31 swedish dissertations containing the words spinodal decomposition.

  1. 1. Phase field modeling of Spinodal decomposition in TiAlN

    University dissertation from Linköping : Linköping University Electronic Press

    Author : Jennifer Ullbrand; Linköpings universitet.; Linköpings universitet.; [2012]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : TiAlN  thin  films  are  used  commercially  in  the  cutting  tool  industry  as  wear protection  of  the  inserts.  During  cutting,  the  inserts  are  subjected  to  high temperatures (~ 900  ° C and sometimes higher). The  objective of this work is to simulate the material behavior at such high temperatures. READ MORE

  2. 2. Thermodynamic and Kinetic Investigation of the Fe-Cr-Ni System Driven by Engineering Applications

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Wei Xiong; KTH.; [2012]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; phase transformation; magnetism; spinodal decomposition; stainless steel; low temperature CALPHAD; phase field; ab initio; atom probe tomography; calorimetry; SRA - E-Science SeRC ; SRA - E-vetenskap SeRC ; SRA - Energy; SRA - Energi;

    Abstract : This work is a thermodynamic and kinetic study of the Fe-Cr-Ni system as the core of stainless steels. The Fe-Cr, Fe-Ni and Cr-Ni systems were studied intensively using both computational and experimental techniques, including CALPHAD (CALculation of PHAse Diagrams), phase field simulation, ab initio modeling, calorimetry, and atom probe tomography. READ MORE

  3. 3. Nanostructuring and Age Hardening in TiSiCN, ZrAlN, and TiAlN Thin Films

    University dissertation from Linköping : Linköping University Electronic Press

    Author : Lars Johnson; Linköpings universitet.; Linköpings universitet.; [2010]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; thin films; age hardening; spinodal decomposition; TiSiCN; ZrAlN; TiAlN; Transmission electron microscopy; Atom probe tomography; NATURAL SCIENCES; NATURVETENSKAP;

    Abstract : This thesis explores nanostructuring in TiSiCN, ZrAlN, and TiAlN thin films deposited by cathodic arc evaporation onto cemented carbide substrates, with intended applications for cutting tools. The three systems were found to exhibit age hardening upon annealing, by different mechanisms, into the superhard regime (≥30 GPa), as determined by a combination of electron microscopy, X-ray diffraction, atom probe tomography, erda, and nanoindentation tech- niques. READ MORE

  4. 4. Structure Evolution during Phase Separation and Gelation of Biopolymer Mixtures

    University dissertation from Chalmers University of Technology

    Author : Niklas Lorén; Chalmers tekniska högskola.; Chalmers University of Technology.; [2001]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Bioteknik; Bioengineering; gelatin maltodextrin; biopolymer mixtures; phase separation; gelation; structure evolution; microstructure; spinodal decomposition; image analysis; stereology; confocal laser scanning microscopy; transmission electron microscopy;

    Abstract : This thesis focuses on the kinetics of phase separation and gelation in aqueous mixtures of gelatin and maltodextrin. The structure evolution of these mixtures at different length scales was recorded by confocal laser scanning microscopy (CLSM) and transmission electron microscopy (TEM). The microstructure was quantified by image analysis. READ MORE

  5. 5. Phase-field modeling of surface-energy driven processes

    University dissertation from Stockholm : KTH, Materialvetenskap

    Author : Klara Asp Grönhagen; KTH.; [2009]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Phase-field method; surface energy; solute drag; solid-state sintering; multicomponent multiphase flow; wetting; liquid-phase sintering; spinodal decomposition; CALPHAD; TECHNOLOGY Materials science; TEKNIKVETENSKAP Teknisk materialvetenskap;

    Abstract : Surface energy plays a major role in many phenomena that are important in technological and industrial processes, for example in wetting, grain growth and sintering. In this thesis, such surface-energy driven processes are studied by means of the phase-field method. READ MORE