Blar i Institutt for materialteknologi på utgivelsesdato
Viser treff 261-280 av 2534
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The effect of deformation on precipitation and precipitation hardening in Aluminium alloys
(Doktoravhandlinger ved NTNU, 1503-8181; 2012:224, Doctoral thesis, 2012) -
Impurity Elements in Raw Gas Ultra-Fines from Aluminium Electrolysis Cells
(Journal article; Peer reviewed, 2012)The effect of alumina feeding and pot suction rate on the amount and composition of fine particles in raw gases has been investigated. Particle size distribution of ultra-fines (Di < 10 μm) were measured in real time and ... -
Secondary Hardening in Two Supermartensitic Stainless Steels
(Master thesis, 2012)Since the late nineties weldable supermartensitic stainless steels (SMSS) has been used in subsea flowlines, and more than 400 km is installed. Hydrogen related problems in the weld fabrication stage or hydrogen induced ... -
Optimization of Strength and Permeability of Tape casted Porous La0.2Sr0.8Fe0.8Ta0.2O3-δ
(Master thesis, 2012)Ceramics with mixed ionic and electronic conductivity are being investigated for oxygen separation from air, intended for the production of syngas. Asymmetric membranes, consisting of a dense membrane co-sintered with a ... -
Brittle and Ductile Fracture of X80 Arctic Steel
(Doktoravhandlinger ved NTNU, 1503-8181; 2012:258, Doctoral thesis, 2012)This PhD work has focused on the effect of microstructure and changes in microstructure introduced by welding procedure, on the brittle to ductile transition properties of high strength low alloy steels which have been ... -
Hot Pressing and Characterization of Powder Based Silicon Substrates for Photovoltaic Applications.
(Master thesis, 2012)High purity silicon material in solar cell fabrication constitutes 40% of the total cost for conventional solar cell production. One approach to reduce costs would be to use less of this expensive silicon by making thin ... -
In situ strekktesting og karakterisering av et 9%Ni-stål: ved hjelp av EBSD
(Master thesis, 2012)Denne oppgaven har tatt for seg karakterisering av mikrostruktur og in-situ strekk-testing for et 9%Ni-stål levert av JFE Steel. Dette ble gjennomført ved hjelp av EBSD og et spesialprodusert strekkbord for bruk inne i ... -
Carbon Cones as Negative Electrode Material in Lithium- Ion Batteries
(Doktoravhandlinger ved NTNU, 1503-8181; 2012:244, Doctoral thesis, 2012) -
Nucleation and Early Growth of Multicrystalline Solar Cell Silicon
(Doktoravhandlinger ved NTNU, 1503-8181; 2012:355, Doctoral thesis, 2012)As the production of solar cell silicon evolves and new concepts are introduced, the need for a more complete understanding of the basic principles of silicon solidification is also increasing. Nucleation has previously ... -
Impact of compensation on solar grade silicon for photovoltaics
(Doktoravhandlinger ved NTNU, 1503-8181; 2012:51, Doctoral thesis, 2012)The steep increase in the market price for silicon feedstock for solar cells experienced at the beginning of the last decade, coupled with a developing industry, opened the possibility for materials produced from different ... -
Pitting and Crevice Corrosion of Stainless Steel under Offshore Conditions
(Master thesis, 2012)AISI 316/316L has traditionally been used in offshore topside environments when operating under low temperatures. It has been observed that the AISI 316/316L piping suffer from severe attacks of pitting and crevice corrosion ... -
Mass and Energy Balances of the Silicon Process: - Improved Emission Standards
(Doktoravhandlinger ved NTNU, 1503-8181; 2012:162, Doctoral thesis, 2012) -
Microfluidic flow cells for studies of electrochemical reactions
(Master thesis, 2012)In this project the main goal was to establish a routine for making a microfluidic flow cell (MFFC) using soft lithography methods, and test the flow cell with different electrolytes, sulphuric acid and a ruthenium red-ox ... -
Hybrid Aminopropyl Silane-based Coatings on Steel
(Doktoravhandlinger ved NTNU, 1503-8181; 2012:276, Doctoral thesis, 2012)Thin coatings applied to metals is a material-saving process to improve the surface properties such as abrasion and corrosion resistance of the substrate. Pure inorganic coatings are generally too thin to offer long-term ... -
Softening Behaviour of Selected Commercially Pure Aluminium Model Alloys
(Master thesis, 2012)A characterization of the softening behaviour of four different commercially pure aluminium alloys has been carried out. The work is related to the MOREAL project (Modelling towards value-added recycling friendly aluminium ... -
Microstructural heterogeneity in hexagonal close-packed pure Ti processed by high-pressure torsion
(Journal article; Peer reviewed, 2012)Microstructural evolution was studied quantitatively by electron backscattering diffraction in commercial purity Ti processed by high-pressure torsion (HPT) at room temperature. The results show that a heterogeneous ... -
Permeation and Stability Properties of Asymmetric and Disk Shaped Oxygen Permeable Membranes Intended for Syn-Gas Production
(Master thesis, 2012)In this study, the oxygen permeation and stability properties of disk shaped and asymmetric membranes, both of the composition La0.2Sr0.8Fe0.8Al0.2O3-δ were investigated. Strontium doped Lanthanum ferrite is an oxygen ... -
Corrosion of Thermally Sprayed Aluminum in Flowing Seawater
(Master thesis, 2012)Raw sea water can be pumped into subsea wells where pressure drops have occurred to increase the pressure again and thereby the production rate. Thermally sprayed aluminum (TSA) is considered as internal corrosion protection ... -
The thermophysical properties of raw materials for ferromanganese production
(Doktoravhandlinger ved NTNU, 1503-8181; 2012:47, Doctoral thesis, 2012) -
Reduction of Manganese Ore Agglomerates
(Doktoravhandlinger ved NTNU, 1503-8181; 2013:344, Doctoral thesis, 2013)