Blar i Institutt for materialteknologi på tittel
Viser treff 1932-1951 av 2502
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Review of Aluminum Alloy Development for Wire Arc Additive Manufacturing
(Peer reviewed; Journal article, 2021)Processing of aluminum alloys by wire arc additive manufacturing (WAAM) gained significant attention from industry and academia in the last decade. With the possibility to create large and relatively complex parts at low ... -
A Review of Ferroalloy Tapping Models
(Peer reviewed; Journal article, 2021)Tapping is an important furnace operation in the ferroalloy industry and poses a number of complex and coupled challenges of both practical and economical importance. Owing to the hazardous high-temperature conditions ... -
Revisiting Polytetrafluorethylene Binder for Solvent-Free Lithium-Ion Battery Anode Fabrication
(Journal article; Peer reviewed, 2022)Solvent-free (SF) anodes with different carbon materials (graphite, hard carbon, and soft carbon) were fabricated to investigate the stability of different anodes with polytetrafluorethylene (PTFE) degradation. The graphite ... -
Revisiting the Crystal Structure of Rhombohedral Lead Metaniobate
(Journal article; Peer reviewed, 2014)Lead metaniobate (PbNb2O6) can exist both as a stable rhombohedral and a metastable orthorhombic tungsten-bronze-type polymorph. While the orthorhombic is a well-known ferroelectric material, the rhombohedral polymorph ... -
Rheological Characterization of Fluid Models for Pitch and Binder Matrix in Anodes
(Master thesis, 2019)Karbonanoder brukes til å produsere primæraluminium og forbrukes i løpet av elektrolysen. Anodene må derfor kontinuerlig erstattes og produseres. Problemer relatert til prosesseringen av anoder inkluderer heterogen tetthet ... -
Rheological Characterization of Oil-Based Mud Enhanced with Micro-Cellulose
(Bachelor thesis, 2020)I denne studien ble de reologiske og filtreringsegenskapene til oljebasert borevæske forbedret med mikrocellulose, karakterisert og analysert. Det ble antatt at tilsetningen av mikrocellulose i borevæsken ville gi høy ... -
Rheological Characterization of Pitch and Binder Matrix with Different Concentrations of Fine Particles
(Journal article, 2019)Green anodes consist of coarse coke particles surrounded by a binder matrix, which is a viscoelastic material and is made of fine coke particles and coal-tar pitch. During the compaction process, the coarse particles ... -
Rheological properties of Al2O3–CaO–SiO2 slags
(Peer reviewed; Journal article, 2022)The Al2O3–CaO–SiO2 ternary is a basic oxide system relevant for the Pedersen alumina production process and for aluminothermic silicon production with low environmental impact using secondary aluminium and silica raw ... -
Rigid bonded glass ceramic seals for high temperature membrane reactors and solid oxide fuel cells
(Doktoravhandlinger ved NTNU, 1503-8181; 2009:85, Doctoral thesis, 2009) -
Road-map for gas in the Norwegian metallurgical industry: greater value creation and reduced emissions
(Research report, 2017)In order to increase the use of gas in metal production, we will need to develop new – and to further develop existing – gas-based technologies, which will need to be adopted on an industrial scale. In order to provide a ... -
A robust algorithm for rate-independent crystal plasticity
(Peer reviewed; Journal article, 2022)A new stable return-mapping algorithm enables crystal-plasticity solutions by using a regularized yield surface with very large exponents, for which the rate-independent limit of the Schmid assumption in practice is reached. ... -
A Robust Image Processing Algorithm for Optical-Based Stress–Strain Curve Corrections after Necking
(Peer reviewed; Journal article, 2021)To determine the stress–strain curve of a ductile material up to the fracture from a tensile test, the necking contour is measured by an optical measurement technique. The radius of the minimal cross-sectional area and the ... -
Role of aluminium hydrides in localised corrosion of aluminium revealed by operando Raman spectroscopy
(Peer reviewed; Journal article, 2023)Filiform corrosion (FFC) is characteristic of metals such as aluminium and magnesium, usually takes place on coated metals, and spreads from coating defects in the form of filaments with a width on the order of 100 μm. In ... -
The Role of Boron in Low Copper Spheroidal Graphite Irons
(Peer reviewed; Journal article, 2023)The effects of boron at concentrations ranging from 5 to 525 ppm in low copper spheroidal graphite iron (SGI) has been studied. At 130 to 140 ppm, no particular effect of boron was observed on the size distributions, number ... -
Role of cementite morphology on corrosion layer formation of high-strength carbon steels in sweet and sour environments
(Peer reviewed; Journal article, 2023)The effect of cementite morphology on the corrosion layer formation of four high-strength carbon steels was studied in an aqueous solution containing CO2 and CO2/H2S. The linear polarization resistance and weight loss data ... -
Role of Filler Content and Morphology in LLZO/PEO Membranes
(Journal article; Peer reviewed, 2021) -
The role of grain boundary plane in slip transfer during deformation of magnesium alloys
(Peer reviewed; Journal article, 2022)Slip transfer across grain boundaries (GBs) is an important mechanism for HCP metals to accommodate intergranular deformation incompatibility. In this work, an in-situ SEM/EBSD study was conducted to study basal-slip-induced ... -
Role of Lone Pair Cations in Ferroelectric Tungsten Bronzes
(Journal article; Peer reviewed, 2017)The role of lone pair cations in tetragonal tungsten bronze (TTB) ferroelectrics has so far not been addressed in detail despite the importance of lone pairs for the polarization mechanism in the prototype ferroelectric ... -
Role of molybdenum in corrosion of iron-based alloys in contact with hydrogen sulfide containing solution.
(Journal article; Peer reviewed, 2017)A sample iron molybdenum alloy with 3.4 wt% (2 at%) molybdenum, and pure iron, are exposed to hydrogen sulfide saturated saline solution for up to 56 days. In addition, their behavior under anodic polarization in the same ... -
Role of Pitting in the Formation of Potholes in Carbon Cathodes - A Review
(Journal article, 2016)