Sökning: "Ostwald Ripening"

Visar resultat 1 - 5 av 11 avhandlingar innehållade orden Ostwald Ripening.

1. 1. Diffusion in Multiphase and Multicomponent Alloys with Applications to Austenitic Stainless Steels

   Författare :Martin Schwind; KTH; []
   Nyckelord :Austenitic Stainless Steel; Diffusion; Ostwald Ripening; Random Walk;

   Sammanfattning : .... LÄS MER

3. 2. Process modeling of semibatch reaction crystallization

   Författare :Marie Ståhl; Åke Rasmuson; Hermann J.M. Kramer; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Reaction crystallization; benzoic acid; nucleation; growth; kinetics; growth rate dispersion; Chemical physics; Kemisk fysik;

   Sammanfattning : This thesis aims at increasing the fundamental understanding of reaction crystallization by modeling, simulations and parameter estimation. Benzoic acid is used as the model compound. LÄS MER

4. 3. In silico studies of carbon nano tubes and metal clusters

   Författare :Anders Börjesson; Högskolan i Borås; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; carbon nanotube; metal clusters; melting temperatures; nanotechnology; molecular dynamics; tight binding; density functional theory; monte carlo; Energi och material; carbon nanotubes; metal clusters; melting temperatures; nanotechnology; molecular dynamics; Monte-Carlo; tight binding; density functional theory;

   Sammanfattning : Carbon nanotubes have been envisioned to become a very important material in various applications. This is due to the unique properties of carbon nanotubes which can be exploited in applications on length scales spanning from the nano world to our macroscopic world. LÄS MER

5. 4. NMR studies of complex fluids and solids formed by surfactants

   Författare :Niklas Hedin; KTH; []
   Nyckelord :CTAB; CTAC; decane; benzene; polysaccharide; micelle; microemulsion; self diffusion;

   Sammanfattning : NMR methods have been designed and employed in studying ofcomplex liquids and solids formed by surfactants. PGSE NMRexperiments are easily biased by convection; this artifact canbe avoided by changing the sample holder and by usingconvection-compensated pulse sequences. LÄS MER

7. 5. Synthesis of nanostructured and hierarchical materials for bio-applications

   Författare :Fei Ye; Mamoun Muhammed; Andreas Fisher; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Fe3O4; mSiO2; core-shell; MRI; multifunctional; PNIPAAm; LCST; gold; nanorod; nitric acid; AR; MDDC; biocompatibility; immunomodulation; Materials chemistry; Materialkemi;

   Sammanfattning : In recent years, nanostructured materials incorporated with inorganic particles and polymers have attracted attention for simultaneous multifunctional biomedical applications. This thesis summarized three works, which are preparation of mesoporous silica coated superparamagnetic iron oxide (Fe3O4@mSiO2) nanoparticles (NPs) as magnetic resonance imaging T2 contrast agents, polymer grafted Fe3O4@mSiO2 NPs response to temperature change, synthesis and biocompatibility evaluation of high aspect ratio (AR) gold nanorods. LÄS MER