Sökning: "Lars Hultman"

Visar resultat 11 - 15 av 82 avhandlingar innehållade orden Lars Hultman.

1. 11. Configurational and Magnetic Interactions in Multicomponent Systems

   Författare :Björn Alling; Igor A. Abrikosov; Lars Hultman; Stefan Blügel; Linköpings universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Magnetic interactions; Configurational thermodynamics; Curie temperature; theoretical physics; magnetism; TiAlN; TiN; AlN; CrN; TiCrN; nitrides; NiMnSb; NiCuMnSb; Heusler alloys; spintronics; half-metallic; spinodal decomposition; first-principles; ab-initio; Magnetism; Magnetism;

   Sammanfattning : This thesis is a theoretical study of configurational and magnetic interactions in multicomponent solids. These interactions are the projections onto the configurational and magnetic degrees of freedom of the underlying electronic quantum mechanical system, and can be used to model, explain and predict the properties of materials. LÄS MER

3. 12. Low Friction and Wear Resistant Carbon Nitride Thin Films for Rolling Components Grown by Magnetron Sputtering

   Författare :Konstantinos D. Bakoglidis; Lars Hultman; Grzegorz Greczynski; Susann Schmidt; Esteban Broitman; Tomas Kubart; Linköpings universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : The scope of this licentiate thesis is the investigation of carbon based thin films suitable for rolling components, especially roller bearings. Carbon and carbon nitride are materials with advantageous tribological properties and high resiliency. LÄS MER

4. 13. Low-friction and wear-resistant carbon nitride coatings for bearing components grown by magnetron sputtering

   Författare :Konstantinos Bakoglidis; Grzegorz Greczynski; Lars Hultman; Susann Schmidt; Witold Gulbinski; Linköpings universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Carbon nitride; magnetron sputtering; physical vapor deposition; coatings; bearings; rolling contact fatigue; adhesion; friction; wear; transmission electron microscopy; scanning electron microscopy; x-ray photoelectron spectroscopy; coatings tribology; nanotribology;

   Sammanfattning : The scope of this thesis is the investigation of magnetron sputtered carbon nitride coatings suitable for roller bearing components. The research field of tribology of bearings focuses on minimizing friction between components by improving the lubricants. LÄS MER

5. 14. Business Basics : A Grounded Theory for Managing Ethical Behavior in Sales Organizations

   Författare :Benny Berggren Newton; Lars-Johan Åge; Aihie Osarenkhoe; Erik A. Borg; Jens Hultman; Södertörns högskola; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Management; Ethical Behavior; Business Basics; Sales Organizations; Grounded Theory; Management; Etiskt beteende; Business Basics; Säljande organisationer; Grundad Teori; Politics; Economy and the Organization of Society; Politik; ekonomi och samhällets organisering;

   Sammanfattning : Background: Managing co-workers’ ethical behavior in sales organizations is a complex social process. To start, sales organizations incorporate several actors to manage, often simultaneously, all with their own agendas. LÄS MER

7. 15. Nanostructured materials for gas sensing applications

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

   Sammanfattning : 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. LÄS MER