Browsing Institutt for materialteknologi by Title
Now showing items 2075-2094 of 2540
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Solubility of Carbon and Nitrogenin the Silicon Rich Part of theSi–C–N–B-System
(Doktoravhandlinger ved NTNU, 1503-8181; 2009:215, Doctoral thesis, 2009) -
Solubility of Nickel in Mg-Al, Mg-Al-Fe, and Mg-Al-Mn Systems
(Doctoral thesis, 2001)The corrosion properties of magnesium alloys strongly depend on the alloy composition and impurities. Heavy elements like nickel, and iron have low solubility in solid magnesium. The dissolved elements in molten magnesium ... -
Solution based synthesis of Si quantum dots and down-shifting layers for solar cell applications
(Doctoral thesis at NTNU, Doctoral thesis, 2014)Silicon is the main component of electronics and photovoltaics, but since bulk Si is a poor light emitter it cannot be adapted into opto-electronic devices and applications. Si nano-crystals on the other hand have ... -
Solvent-Controlled Charge Storage Mechanisms of Spinel Oxide Electrodes in Mg Organohaloaluminate Electrolytes
(Journal article; Peer reviewed, 2017)Considering the improved safety, reduced cost, and high volumetric energy density associated with Mg batteries, this technology has distinct advantages for large-scale energy storage compared to other existing battery ... -
Sonochemical synthesis of Cu-Pt core-shell nanoparticles on a carbon support
(Master thesis, 2022)Cu@Pt kjerne-skall partikler ble syntetisert ved sonokjemisk reduksjon av CuSO4 • 5H2O i en vandig bufferløsning med pH 5 bestående av 9.9 mmol dm-3 metansyre, HCOOH, og natriumformat, NaCOOH, som valgt radikalsamler. ... -
Sonochemical Synthesis of Cu@Pt Bimetallic Nanoparticles
(Peer reviewed; Journal article, 2022)Reducing the amount of noble metals in catalysts for electrochemical conversion devices is paramount if these devices are to be commercialized. Taking advantage of the high degree of particle property control displayed by ... -
Sonochemical Synthesis of Nanoparticles for Fuel Cells and Electrolyzers
(Doctoral theses at NTNU;2023:215, Doctoral thesis, 2023)Green hydrogen represents an environmentally friendly alternative to fossil fuels as an energy carrier in many different energy-demanding industries. However, commercialized electrochemical conversion devices utilizing ... -
Sour Gas Corrosion—Corrosion of Steels and Other Metallic Materials in Aqueous Environments Containing H2S
(Chapter, 2013)The corrosion of metals, mainly steels, in contact with H2S-containing solutions is a general problem especially in gas and oil production. The corrosion products are hydrogen and iron sulfides. Penetration of the hydrogen ... -
Spark Plasma Sintering of Graphene Nanoplatelets Reinforced Aluminium 6061 Alloy Composites
(Chapter, 2020)Over the years, high performance lightweight aluminium matrix composites have, mainly due to their excellent mechanical properties, found wide applications in automobile and aerospace applications. In the present study, ... -
Spark Plasma Sintering of Silicon Carbide and the Effect of α-SiC and β-SiC on Sintering Properties
(Master thesis, 2022)Silisiumkarbid (SiC) er kjent for sine utmerkede termiske og mekaniske egenskaper, noe som gjør det nyttig innen mange bruksområder. Egenskaper som høy hardhet og styrke ved høy temperatur skyldes de sterke kovalente ... -
Spatial methods for characterising carbon anodes for aluminium production
(Journal article, 2015)Pilot test anodes were designed by Hydro Aluminium for laboratory studies using controlled blends of <2 mm aggregate from two single source cokes. Spa- tial and imaging methods were used to characterise anode surfaces with ... -
Spatially Confined Spin Polarization and magnetic sublattice control in (La,Sr)MnO3−δ Thin Films by Oxygen Vacancy Ordering
(Journal article; Peer reviewed, 2017)Perovskite oxides are known for their strong structure property coupling and functional properties such as ferromagntism, ferroelectricity and high temperature superconductivity. While the effect of ordered cation vacancies ... -
Special nanostructures in Al-Mg alloys subjected to high pressure torsion
(Journal article; Peer reviewed, 2010)Deformation twins and stacking faults were observed in nanostructure Al-Mg alloys subjected to high pressure torsion. These observations are surprising because deformation twinnings have never been observed in their ... -
Special quasirandom structures description of the local structure of disordered Bi0.5K0.5TiO3
(Peer reviewed; Journal article, 2022)Polar nanoregions (PNRs) are believed to play a decisive role in the local and macroscopic polarization in relaxor ferroelectrics. The limited microscopic understanding of the structure and dynamics of PNRs hampers the ... -
Spectroscopic study of partially oxidized BN nanoscrolls induced by low frequency ultrasonic irradiation.
(Peer reviewed; Journal article, 2020)In comparison to carbon nanostructures, hexagonal boron nitride (hBN) nanostructures show better biocompatibility and lower cytotoxicity. However, research studies on hBN nanostructures for biomedical applications are still ... -
Spectroscopic study of partially oxidized BN nanoscrolls induced by low frequency ultrasonic radiation
(Journal article; Peer reviewed, 2020)In comparison to carbon nanostructures, hexagonal boron nitride (hBN) nanostructures show better biocompatibility and lower cytotoxicity. However, research studies on hBN nanostructures for biomedical applications are still ... -
Spin and vorticity with vanishing rigid-body rotation during shear in continuum mechanics
(Journal article; Peer reviewed, 2020)A long-standing challenge in continuum mechanics has been how to separate shear deformation and corresponding shape changes from the rotation of a continuum. This can be obtained by a new decomposition of the spin tensor, ... -
Spinel oxide protective coatings for solid oxide fuel cell interconnects
(Master thesis, 2013)Metallic interconnects in solid oxide fuel cells are dependent on protective coatings to ensure adequate application lifetime. Of the many coatings investigated, spinel composition coatings display the most promising ... -
Sponge-like porous manganese(II,III) oxide as a highly efficient cathode material for rechargeable magnesium ion batteries
(Journal article; Peer reviewed, 2016)Here, we are the first to report a spinel type Mn3O4 as cathode material for Mg-ion battery (MIB) with graphite foil (Gif) as current collector. High Coulombic efficiency and good cyclic stability of Mn3O4 are demonstrated, ... -
Spray Pyrolysis of Thermal Barrier Coatings
(Doktoravhandlinger ved NTNU, 1503-8181; 2012:142, Doctoral thesis, 2012)Thermal barrier coatings are multilayer systems developed to increase the operating temperature and lifetime of modern gas-turbine engines by thermally insulating the underlying superalloy components. Thick oxide thermal ...