Search for dissertations about: "contacts"

Showing result 11 - 15 of 737 swedish dissertations containing the word contacts.

  2. 11. Electrical contacts, Ohmic and Schottky, to 4H-Silicon Carbide for device applications

    Author : Sang-Kwon Lee; KTH; []
    Keywords : silicon carbice; Ohmic; Schottky contacts; co-evaporation; current-voltage; capacitance-voltage measurement; power device; 4H-SiC; TLM;

    Abstract : .... READ MORE

  4. 12. Friction and wear in rolling and sliding contacts

    Author : Christer Spiegelberg; Sören Andersson; Roland Larsson; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; tribology; friction; wear; rolling and sliding contacts; Engineering mechanics; Teknisk mekanik;

    Abstract : Mechanical products are always expected to perform better, last longer, be more environmentally friendly and preferably cost less. Rolling and sliding contacts are found in many mechanical products, and friction and wear in the contacts have a direct impact on the products’ ability to meet these demands. READ MORE

  5. 13. Spin transfer torques and spin dynamics in point contacts and spin-flop tunnel junctions

    Author : Alexander Konovalenko; Vladislav Korenivski; David W. Abraham; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; spin dynamics; spin transfer torques; point contacts; magnetization dynamics; Physics; Fysik;

    Abstract : The first part of this thesis is an experimental study of the spin-dependent transport in magnetic point contacts. Nano-contacts are produced micromechanically, by bringing a sharpened non-magnetic (N) tip into contact with a ferromagnetic (F) film. READ MORE

  6. 14. Thin lubricating films in elastohydrodynamic contacts : experimental techniques and applications

    Author : John Lord; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Maskinelement; Machine Elements;

    Abstract : The objective of the work reported in this thesis was to increase understanding of thin film lubrication in elastohydrodynamic (EHL) contacts. Increasingly stringent cost demands upon the manufacturing of lubricated machine elements coupled with new environmental requirements have created a need for this knowledge. READ MORE

  7. 15. On wear in rolling/sliding contacts

    Author : Rickard Nilsson; Ulf Olofsson; I. Sherrington; KTH; []
    Keywords : Technology; wear; rolling; sliding; contact; environment; TEKNIKVETENSKAP; TECHNOLOGY; TEKNIKVETENSKAP;

    Abstract : The aim of this thesis is to increase the understanding of wear in rolling/sliding contacts such as the wheel-rail contact for railroads and the roller-washer contact for roller bearings. The Stockholm commuter train network has been the subject of papers A and B in this thesis in which the wear and surface cracks on rails has been observed for a period of three years. READ MORE