Blar i Institutt for materialteknologi på utgivelsesdato
Viser treff 341-360 av 2534
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Recycling of the Rare Earth Oxides from Spent Rechargeable Batteries Using Waste Metallurgical Slags
(Journal article; Peer reviewed, 2013)A high temperature process for recycling spent nickel-metal hydride rechargeable batteries has been recently developed at SINTEF/NTNU. The spent battery modules were first frozen with liquid nitrogen for the de-activation ... -
Oxidation of Manganese-Containing Aluminium Alloys: Oxidation of Molten Mn-Containing Al Alloys in Various Atmospheres
(Master thesis, 2013)An oxidation study was performed on 99.99% Al, Al1%Mn and Al5%Mn materials, both ina thermogravimetric furnace, and in a muffle furnace. The mass gain behaviour for thesematerials was studied and compared for dierent ... -
Characterization the softening behavior of cold rolled AlMnFeSi-alloys during conditions of concurrent precipitation
(Journal article, 2013)In the present work an Al-Mn-(Fe-Si) model alloy has been subjected to different homogenization treatments, to achieve materials with different microchemistry states in terms of constituents, levels of Mn in solid solution ... -
Industrialising of the Hybrid Metal Extrusion & Bonding(HYB) Method – from Prototype towards Commercial Process
(Doktoravhandlinger ved NTNU, 1503-8181; 2013:339, Doctoral thesis, 2013) -
An Experimental and Numerical Study of Heat Transfer in Aluminium Melting and Remelting Furnaces
(Doktoravhandlinger ved NTNU, 1503-8181; 2013:30, Doctoral thesis, 2013)This work has been a combined experimental and numerical modeling effort aimed to help in the understanding of heat transfer processes when melting aluminium. In addition a newly developed type of oxy-fuel burner was ... -
Effekt av anløpning på de mekaniske egenskapene til et martensittisk rustfritt stål
(Master thesis, 2013)Martensittisk rustfritt stål er ansett som et velegnet materiale til propellblader, turbinskovler og flydeler. Stålet viser god sveisbarhet, styrke og seighet, samtidig som korrosjonsmotstanden betraktes som tilfredsstillende. ... -
Interface energy determination for the fully coherent β'' phase in Al-Mg-Si: making a case for a first principles based hybrid atomistic modelling scheme
(Journal article, 2013)Multiscale modelling of hardening precipitate interfaces in alloy design This project will develop a new multiscale modelling scheme used to investigate hardening precipitate interfaces in metal alloys. The major aim is ... -
Modelling time-dependent nucleation of recrystallization in aluminium alloys
(Journal article; Peer reviewed, 2013)The basic equations and mathematical framework of a mean-field model for recovery and recrystallization, the latter based on the Johnson-Mehl-Avrami-Kolmogorov (JMAK) approach, capable of handling time-dependent nucleation ... -
Alkali‐silica reaction (ASR) – Performancetesting
(Doktoravhandlinger ved NTNU, 1503-8181; 2013:269, Doctoral thesis, 2013)Whether or not concrete prism tests developed for assessment of alkali‐silica reactivity of aggregates is suitable for general ASR performance testing of concrete has been evaluated. The work has been part of the Norwegian ... -
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 ... -
Preliminary Investigations on the Manufacture of Al-AZ31 Bimetallic Composites by the Screw Extrusion Process
(Master thesis, 2013)The development of bimetals, or metallic composites, has in recent years been given increased attention. The motivation behind the development of bimetals is that, by combining two dissimilar metals it is possible to obtain ... -
Characteristics of particulate emissions from aluminium electrolysis cells
(Doktoravhandlinger ved NTNU, 1503-8181; 2013:314, Doctoral thesis, 2013)Modern sampling and analysis techniques were applied to study the morphology and composition of pot exhaust particles from aluminium smelters. In this study the total spectrum of pot exhaust particles from prebake electrolysis ... -
Facile synthesis of nanosized sodium magnesium hydride, NaMgH3
(Journal article; Peer reviewed, 2013)The ternary magnesium hydride NaMgH3 has been synthesised via reactive milling techniques. The method employed neither a reactive H2 atmosphere nor high pressure sintering or other post-treatment processes. The formation ... -
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 ... -
Quartz Behavior in Si Production
(Master thesis, 2013)The results of this study show the main findings in this work. The points are summarized as follow:1.With the temperature increased, many cracks formed inside the quartz. When the temperature was approaching melting point, ... -
Alternating Current Corrosion of Aluminium Sacrificial Anodes
(Master thesis, 2013)Direct Electric Heating (DEH) is applied to subsea oil production and transmission pipelines to prevent freezing of hydrates as wax during productions shut downs. To prevent clogging, the pipes are heated by application ... -
Modelling the evolution in microchemistry and its effects on the softening behavior of cold rolled AlFeMnSi-alloys during annealing
(Journal article, 2013)A dedicated diffusion controlled precipitation model for AlMnFeSi-alloys, based on classical nucleation and growth theory, has been implemented and coupled to a phenomenological softening model accounting for the combined ... -
Kompleksdannere under våtkjemisk syntese av oksider
(Master thesis, 2013)Effekten av ulike komplekseringsmidler i den modifiserte Pechini-metoden har blitt studert ved å benytte malon-, eple- og vinsyre under syntesen CuAlO2 med delafossittstruktur og eple- og vinsyre for NaLa(WO4)(MoO4) med ... -
Effect of Vanadium on Grain Refinement of Aluminium
(Master thesis, 2013)Today, grain refinement of aluminium is effectively achieved by inoculation. The performance of the inoculants, as well as further growth restriction in the liquid metal, can be affected by alloy- elements and impurities. ... -
The effect of ferroelasticity of La1-xSrxCo1-yFeyO3-d on the machanical stability of solid oxide fuel cells
(Journal article, 2013)The stress-strain relationships of La0.6Sr0.4CoO3-δ (LSC), La0.6Sr0.4Co0.2Fe0.8O3-δ (LSCF6428) and La0.6Sr0.4FeO3-δ (LSF) was evaluated by uniaxial compression tests in the temperature range between room temperature and ...