Search for dissertations about: "Lars Hultman"

Showing result 11 - 15 of 76 swedish dissertations containing the words Lars Hultman.

  2. 11. Nanostructured materials for gas sensing applications

    Author : Kristina Buchholt; Per Eklund; Lars Hultman; Anita Lloyd Spetz; Harry L. Tuller; Linköpings universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP;

    Abstract : In this Thesis I have investigated the use of nanostructured films as sensing and contact layers for field effect gas sensors in order to achieve high sensitivity, selectivity, and long term stability of the devices in corrosive environments at elevated temperatures. Electrochemically synthesized Pd and Au nanoparticles deposited as sensing layers on capacitive field effect devices were found to give a significant response to NOx with small, or no responses to H2, NH3, and C3H6. READ MORE

  4. 12. Meeting increased logistical demands : Developing as a small- and medium-sized system supplier

    Author : Inga-Lill Carlsson; Mats Abrahamsson; Håkan Aronsson; Jens Hultman; Lars Bengtsson; Linköpings universitet; []
    Keywords : TECHNOLOGY; TEKNIKVETENSKAP;

    Abstract : Many subcontractors choose to implement a strategy of “system supply” in order to meetincreasing global competition. They are then confronted with increased demands to take agreater overall responsibility in this role. READ MORE

  5. 13. A theoretical study of mass transport processes on TiN(001) and mechanical properties of TiN- and VN-based ternaries

    Author : Daniel Edström; Valeriu Chirita; Lars Hultman; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : This thesis concerns computer simulations, using classical molecular dynamics, of transport processes related to TiN(001) growth. It is motivated from the challenge to understand transport processes at the atomic scale responsible for crystal and film growth and their different growth modes. READ MORE

  6. 14. Growth and Mechanical Properties of Transition Metal Nitrides and Carbides

    Author : Daniel Edström; Valeriu Chirita; Lars Hultman; Denis Music; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : The atomic-scale dynamical processes at play during film growth cannot be resolved by even the most advanced experimental methods. As such, computational methods, and chiefly classical molecular dynamics, are the only available research tools to study these processes. READ MORE

  7. 15. Multifunctional nanostructured Ti-Si-C thin films

    Author : Per Eklund; Lars Hultman; Hans Högberg; G. Ramanath; Linköpings universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Material physics with surface physics; Materialfysik med ytfysik;

    Abstract : In this Thesis, I have investigated multifunctional nanostructured Ti-Si-C thin films synthesized by magnetron sputtering in the substrate-temperature range from room temperature to 900 °C. The studies cover high-temperature growth of Ti3SiC2 and Ti4SiC3, low-temperature growth of Ti-Si-C nanocomposites, and Ti-Si-C-based multi¬layers, as well as their electrical, mechanical, and thermal-stability properties. READ MORE