Blar i Institutt for materialteknologi på tittel
Viser treff 1441-1460 av 2508
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Microscopic Study of Carbon Surfaces Interacting with High Carbon Ferromanganese Slag
(Journal article; Peer reviewed, 2015)The interaction of carbon materials with molten slags occurs in many pyro-metallurgical processes. In the production of high carbon ferromanganese in submerged arc furnace, the carbothermic reduction of MnO-containing ... -
Microstructural Analysis of Effective Electrode Conductivity in Molten Salt, Na-ZnCl2 Batteries
(Peer reviewed; Journal article, 2022)Intermediate temperature molten salt batteries are a promising alternative for grid-scale energy storage with several advantages over existing solutions. The cathode of some of these batteries is composed of a porous matrix ... -
Microstructural and compositional optimization of La0.5Ba0.5CoO3−δ—BaZr1−zYzO3−δ (z=0, 0.05 and 0.1) nanocomposite cathodes for protonic ceramic fuel cells
(Journal article; Peer reviewed, 2019)Cathodes are one of the key components of protonic ceramic fuel cells (PCFCs) requiring further development to enhance the performance of PCFCs. This encompasses the optimization of material compositions and microstructures, ... -
Microstructural design of CaMnO3 and its thermoelectric proprieties.
(Master thesis, 2015)Calcium manganate (CMO) is an n-type semiconductor with promising thermoelectric proprieties. Solid state synthesis was employed to synthesise the desired material in two phases: i) reduced rock-salt phase of CaO-MnO (ss) ... -
Microstructural evolution during isothermal annealing of a cold-rolled Al-Mn-Fe-Si alloy with different microchemistry states
(Journal article, 2014)In this paper, investigations of the softening behaviour of a supersaturated Al-Mn-Fe-Si alloy during annealing after cold rolling have been carried out. Two different homogenization conditions were considered, of which ... -
Microstructural evolution during isothermal heat treatment of super duplex stainless steels as a function of tungsten content
(Master thesis, 2017)Duplex stainless steels(DSS) and super duplex stainless steels(SDSS) can be described as austenitic-ferritic stainless steels of 22%Cr and 25%Cr content, respectively. The DSS and SDSS are characterised by their combination ... -
Microstructural evolution of 3000 series multi-port extruded tubes during brazing cycles
(Master thesis, 2017)The AA3xxx series alloys are known for the good corrosion resistance and widely used as heat exchanging material. However, 3xxx series alloys shows intergranular corrosion problem after brazing. In this project, a systematic ... -
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 ... -
The microstructural origin of a hardness double-peak in an age-hardened EN-AW 6082
(Peer reviewed; Journal article, 2023)In this study, the origin of a double-peak during artificial aging of an EN-AW 6082 is analyzed with (S)TEM. The acquired TEM data is used as an input into a strength model by Holmedal [1] to explore the origin of the ... -
Microstructural Stability of Tailored CaMn0.875−xFexTi0.125O3−δ Perovskite Oxygen Carrier Materials for Chemical Looping Combustion
(Journal article; Peer reviewed, 2017)CaMn1−xTixO3−δ are state-of-the-art perovskite-type oxygen-carrier materials (OCMs) used in gaseous fluidized-bed chemical looping combustion (CLC), which is currently undergoing upscaling and demo campaigns in several ... -
Microstructure and electrical properties of multi- crystalline silicon ingots made in silicon nitride crucibles
(Peer reviewed; Journal article, 2022)Silicon nitride is a more sustainable crucible material than silica, due to the larger potential for re-use. In this work, two directionally solidified high-performance multi-crystalline silicon (HPMC-Si) ingots have been ... -
Microstructure and enhanced mechanical properties of an Mg-10Gd-2Y-0.5Zr alloy processed by cyclic extrusion and compression
(Journal article; Peer reviewed, 2011)The evolution of microstructure and texture of an extruded GW102K Mg alloy processed by cyclic extrusion and compression (CEC) at 450 °C were investigated. Tensile tests were performed at room temperature and strain rate ... -
Microstructure and Mechanical Properties of 6013 Aluminum Alloy Processed by a Combination of ECAP and Preaging Treatment
(Journal article; Peer reviewed, 2017)Microstructure and mechanical properties of a 6013 Al-Mg-Si-Cu aluminum alloy processed by a combination of equal channel angular pressing (ECAP) and preaging treatment were comparatively investigated using quantitative ... -
Microstructure and mechanical properties of Al-xMg alloys processed by room temperature ECAP
(Journal article; Peer reviewed, 2012)Microstructure development and mechanical properties of Al–xMg alloys (x = 0, 1, 5–10 wt%), processed by ECAP at room temperature, have been investigated. The results show that the microstructures of Al–xMg alloys are ... -
Microstructure and mechanical properties of the AZ31/GW103K bimetal composite rods fabricated by co-extrusion
(Peer reviewed; Journal article, 2022)The AZ31/GW103K bimetal composite rods consisting of a soft AZ31 sleeve and a hard GW103K core were fabricated by the co-extrusion at 350 °C, 400 °C and 450 °C, and their microstructure and mechanical properties were ... -
Microstructure and Mechanical Properties of Welded AA6082 Aluminium Alloys
(Master thesis, 2016)The present work have investigated variants of an AA6082 aluminium alloy. Five different alloys with various amounts of Mn, Cr and Zr have been subjected to three homogenization procedures. After homogenization, the aluminium ... -
Microstructure And Properties Of Extruded Al-Alloys For Crash Components In Cars
(Master thesis, 2014)The demand for lightweight materials in the transport industry is fuelling the research of high performing components. Extruded aluminium profiles intended for crash components are examined in this project. The objective ... -
Microstructure and properties of nano-C and in-situ Al2O3 reinforced aluminum matrix composites processed by high-pressure torsion
(Peer reviewed; Journal article, 2021)In this study, Al-Si matrix composites reinforced with In situ Al2O3, C nanotubes (CNTs), and graphene nanoplatelets (GNPs) were prepared by ball milling, hot-isostatic pressing (HIP), and subsequent high-pressure torsion ... -
Microstructure and Properties of Wire Arc Additive Manufacturing of Inconel 625
(Journal article; Peer reviewed, 2022)In the present investigation, wire arc additive manufacturing of Inconel 625 was carried out with the cold metal transfer variant of the metal inert gas process. The heat input varied between 0.46 and 0.63 kJ/mm, which is ... -
Microstructure and texture characteristics of ZK60 Mg alloy processed by cyclic extrusion and compression
(Journal article; Peer reviewed, 2010)The microstructure and crystallographic texture characteristics of an extruded ZK60 Mg alloy subjected to cyclic extrusion and compression (CEC) up to 8 passes at 503 K were investigated. The local crystallographic texture, ...