Browsing Institutt for materialteknologi by Document Types "Doctoral thesis"
Now showing items 61-80 of 317
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Dense Oxygen Separation Membrane Materials —Thermal and Chemical Expansion of La1xSrxMO3-δ (M = Fe, Co) and Tape Casting and Mechanical Properties of La2NiO4+δ
(Doktoravhandlinger ved NTNU, 1503-8181; 2013:367, Doctoral thesis, 2013) -
Depolarized gas anodes for electrowinning in molten salts
(Doktoravhandlinger ved NTNU, 1503-8181; 2011:130, Doctoral thesis, 2011) -
Deposition and reduction of manganese dioxide on alternative anode materials in zinc electrowinning
(Dr. ingeniøravhandling, 0809-103X; 2000:19, Doctoral thesis, 2000) -
Design and manufacture of Portland cement Application of statistical analysis
(Doktoravhandlinger ved NTNU, 1503-8181; 2011:196, Doctoral thesis, 2011)The purpose of the work is to enable design and manufacture of cement with emphasis on the quality and the properties of cement. Data used in the design and manufacture were collected from predictions of properties and ... -
Determination of Oxygen Transport Coefficients in Perovskites and Perovskite related Materials with mixed Conductivity
(Doktoravhandlinger ved NTNU, 1503-8181; 2005:191, Doctoral thesis, 2005)Perovskites and perovskite related materials are materials that are candidates for applications such as oxygen permeable membranes, cathodes for SOFC and high-temperature oxygen sensors. This arises from the potential high ... -
Development and ceramic processing of all-oxide thermoelectric module with direct p-n junction
(Doctoral theses at NTNU;2018:91, Doctoral thesis, 2018) -
Development and Characterization of Surface Passivation Materials on Silicon Wafers for Solar Cells
(Doctoral theses at NTNU;2017:53, Doctoral thesis, 2017)A main challenge for high efficiency crystalline silicon solar cells is to reduce the current and voltage loss from the surface recombination process. An effective surface passivation system is needed to obtain high ... -
Development and characterizationof high solid solution Al-Mg alloysand an immiscible Al-Bi alloyprocessed by ECAP and annealing
(Doktoravhandlinger ved NTNU, 1503-8181; 2014:149, Doctoral thesis, 2014)The thesis is based on five papers, covering two topics: papers 1-4 mainly focus on the development and characterization of high solid solution Al-Mg alloys by room temperature ECAP and annealing, their microstructure ... -
Development of an electrochemical sensor for alumina concentration measurements and dissolution characteristics of alumina in cryolite melt
(Doctoral theses at NTNU, 2022:161, Doctoral thesis, 2022)The work studied the development and behaviour of an in-situ electromotive force (emf) based electrochemical sensor composed of a graphite probe during the addition and dissolution of alumina in cryolite-based melts. The ... -
Development of carbon membranes for hydrogen recovery
(Doktoravhandlinger ved NTNU, 1503-8181; 2007:196, Doctoral thesis, 2007)The recovery of hydrogen from gas mixtures with hydrocarbons may provide a commercial niche for carbon molecular sieve membranes (CMSMs). Previous work has shown that carbon membranes achieve excellent performance, with ... -
Development of high performance lightweight aggregates
(Doktoravhandlinger ved NTNU, 1503-8181; 2013:223, Doctoral thesis, 2013) -
Development of oxides with n-type electronic conductivity for applications in high temperature thermoelectric generators (TEGs)
(Doctoral theses at NTNU;2018:378, Doctoral thesis, 2018) -
Development of Piezoelectric BCZT Ceramics as Electroactive Bone Implant Material
(Doctoral theses at NTNU;2020:148, Doctoral thesis, 2020)The functionalisation of current load-bearing bone implant metals with piezoelectric ceramics is envisioned as a novel opportunity for promoting tissue healing and improving the strength of the bone-implant interface through ... -
Dislocations in directionally solidified crystalline silicon: Generation mechanisms and interactions
(Doktoravhandlinger ved NTNU, 1503-8181; 2013:193, Doctoral thesis, 2013)The growth of crystalline silicon from crucibles by directional solidification will invariably cause structural defects in the material. In addition, the casting process leads to the incorporation of impurities, and the ... -
Dislocations in Multicrystalline Silicon for Solar Cells: Microstructure and Sources
(Doktoravhandlinger ved NTNU, 1503-8181; 2012:169, Doctoral thesis, 2012)The study of defects especially dislocations and grain boundaries in semiconductors has received a great deal of attention for over 60 years, primarily due to the importance of the defects in microelectronics. The defect ... -
Dispersion, Performance and Durability of Pt Nanoparticles on Carbon for PEM Fuel Cell Catalysis
(Doctoral theses at NTNU;2014:298, Doctoral thesis, 2014)The main objective of this work has been to develop the understanding of the effect of Pt particle dispersion on activity and durability of the Pt/C electrocatalysts. In order to have such understanding, extensive testing ... -
Dissolution kinetics of carbon materials in FeMn
(Doctoral theses at NTNU;2019:226, Doctoral thesis, 2019)Submerged electric arc furnace (SAF) is the main process for industrial production of ferroalloys, in which metal oxides are reduced by carbon. To decrease the production cost and reduce the CO2 emissions, a variety of ... -
Distribution of boron between silicon and CaO-SiO2, MgO-SiO2,CaO-MgO-SiO2 and CaO-Al2O3-SiO2 slags at 1600°C
(Doktoravhandlinger ved NTNU, 1503-8181; 2013:326, Doctoral thesis, 2013)New energy sources are needed for a sustainable future. Solar cells have a huge potential as a sustainable energy source but further development of this technology is needed for solar cells to become cost-competitive with ... -
Dynamic behaviour of fuel cells
(Doktoravhandlinger ved NTNU, 1503-8181; 2006:94, Doctoral thesis, 2006)This thesis addresses the dynamic behaviour of proton exchange membrane fuel cells (PEMFCs) and alkaline fuel cells (AFCs). For successful implementation in automotive vehicles and other applications with rapidly varying ... -
EBSD based in-situ observationsof polycrystalline materials in the SEM
(Doktoravhandlinger ved NTNU, 1503-8181; 2009:81, Doctoral thesis, 2009)The present PhD thesis is concerned with electron backscatter diffraction (EBSD) based in-situ observations of fine-scaled polycrystalline microstructures during thermomechanical processing in the scanning electron microscope ...