Search for dissertations about: "Jean Pierson"

Found 3 swedish dissertations containing the words Jean Pierson.

  2. 1. Phase stability and defect structures in (Ti,Al)N hard coatings

    Author : Katherine M. Calamba; Magnus Odén; Jean Pierson; Mats Johansson; Gregory Abadias; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : This study highlights the role of nitrogen vacancies and defect structures in engineering hard coatings with enhanced phase stability and mechanical properties for high temperature applications. Titanium aluminum nitride (Ti,Al)N based materials in the form of thin coatings has remained as an outstanding choice for protection of metal cutting tools due to its superior oxidation resistance and high-temperature wear resistance. READ MORE

  4. 2. Microstructural evolution of TiAlN hard coatings at elevated pressures and temperatures

    Author : Niklas Norrby; Magnus Odén; Mats Johansson; Jean-François Pierson; Linköpings universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : A typical hard coating on metal cutting inserts used in for example turning, milling or drilling operations is TiAlN. At elevated temperatures, TiAlN exhibits a well characterized spinodal decomposition into coherent cubic TiN and AlN rich domains, which is followed by a transformation from cubic to hexagonal AlN. READ MORE

  5. 3. Reactive Sputtering of Complex Multi-component Nitride Thin Films

    Author : Kristina von Fieant; Erik Lewin; Ulf Jansson; Jean-Francois Pierson; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : The ever-increasing demand on improvement of protective nitride thin films has led to an expansion of the research field into multi-element based materials. The work in this thesis has focused on exploring new complex, multi-component nitride thin films based on three different material systems: Al-Ge-N, Hf-Nb-Ti-V-Zr-N and Al-Cr-Nb-Y-Zr-N. READ MORE