Search for dissertations about: "Magnetic Cobalt"

Showing result 1 - 5 of 32 swedish dissertations containing the words Magnetic Cobalt.

2. 1. Iron Losses in Electrical Machines - Influence of Material Properties, Manufacturing Processes, and Inverter Operation

   Author : Andreas Krings; Juliette Soulard; Oskar Wallmark; Annette Mütze; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; AC machines; cobalt-iron; eddy current losses; electrical steel sheets; inverter-fed machines; iron alloys; iron loss measurements; machine design; magnetic hysteresis; magnetic losses; magnetic materials; nickel-iron; permanent magnet machines; silicon-iron; soft magnetic composites; slot-less machines; soft magnetic materials; thermal effects.; Electrical Engineering; Elektro- och systemteknik;

   Abstract : As the major electricity consumer, electrical machines play a key role for global energy savings. Machine manufacturers put considerable efforts into the development of more efficient electrical machines for loss reduction and higher power density achievements. READ MORE

4. 2. Designer magnetoplasmonics for adaptive nano-optics

   Author : Irina Zubritskaya; Göteborgs universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Photonics; magnetoplasmonics; magneto-optics; magneto-optical Kerr effect MOKE ; plasmon ruler; nickel; cobalt; gold; silicon; localized surface plasmon resonance; dimer; trimer; chiroptics; chiral transmission; 2D nanoantennas; dynamic tuning; metal-dielectric; 3D nanoantennas; metasurface; magnetic modulation; perpendicular magnetic anisotropy.;

   Abstract : Materials that provide real-time control of the fundamental properties of light at visible and near-infrared frequencies enable the essential components for future optical devices. Metal nanostructures that couple electromagnetic (EM) radiation on a sub-wavelength length scale to free electrons, forming propagating or localized surface plasmons, provide many exciting functionalities due to their ability to manipulate light via the local EM field shaping and enhancement. READ MORE

5. 3. Alternative Routes to Highly Dispersed Cobalt Ferrite Nanocomposites

   Author : Richard T. Olsson; Ulf W. Gedde; Mikael Surifvars; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; aqueous precipitation; cobalt ferrite; nanoparticles; synthesis; size distribution; silane silsesquioxane; epoxy; nanocomposites; magnetic cellulose; Polymer chemistry; Polymerkemi;

   Abstract : .... READ MORE

6. 4. The Structural Basis for Magnetic Order in New Manganese Compounds

   Author : Therese Eriksson; Yvonne Andersson; Helmer Fjellvåg; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Inorganic chemistry; Crystal structure; Magnetic structure; Manganese compounds; Transition metal silicides; Transition metal germanides; Magnetic frustration; Neutron powder diffraction; X-ray diffraction; Magnetisation measurements; DFT; Oorganisk kemi; Inorganic chemistry; Oorganisk kemi;

   Abstract : Materials with new or improved properties are crucial for technological development. To provide the foundation for future successful products, it is important to prepare and characterise new chemical compounds that could show unusual properties. READ MORE

7. 5. Magnetic Materials for Cool Applications : Relations between Structure and Magnetism in Rare Earth Free Alloys

   Author : Johan Cedervall; Martin Sahlberg; Paul Henry; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Magnetism; Diffraction; X-ray scattering; Neutron Scattering; Permanent magnets; Magnetocalorics; Chemistry with specialization in Inorganic Chemistry; Kemi med inriktning mot oorganisk kemi;

   Abstract : New and more efficient magnetic materials for energy applications are a big necessity for sustainable future. Whether the application is energy conversion or refrigeration, materials based on sustainable elements should be used, which discards all rare earth elements. READ MORE