Browsing Institutt for materialteknologi by Title
Now showing items 602-621 of 2502
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Effect of B-site substitution on the stability of La0.2Sr0.8Fe0.8B0.2O3-delta, B = Al, Ga, Cr, Ti, Ta, Nb
(Journal article; Peer reviewed, 2012)Single phase, cubic perovskites of composition La0.2Sr0.8Fe0.8B0.2O3 − δ, B = Al, Ga, Cr, Ti, Ta and Nb, were prepared by spray pyrolysis from aqueous precursor solutions. The effect of B-site substitution on the stability ... -
The effect of bird droppings on the corrosion of steel and aluminum used in offshore applications
(Peer reviewed; Journal article, 2022)Engineering materials in service are frequently exposed to bird droppings (BDs). In this study, the interaction has been studied of BDs from chicken with a carbon steel, AISI 316, 22% Cr duplex stainless steel (DSS), 25% ... -
Effect of carbon content and annealing atmosphere on phase purity and morphology of Li2MnSiO4 synthesized by a PVA assisted sol–gel method
(Journal article; Peer reviewed, 2015)Lithium transition metal orthosilicates of the general formula Li2MSiO4 have gained great interest as potential positive electrode material for Li-ion batteries. This study reports the dependence of phase purity and ... -
Effect of carbonization conditions on CO2 gasification reactivity of biocarbon
(Journal article; Peer reviewed, 2017)Substituting fossil reductants with biocarbon is a promising way for reducing greenhouse gas emissions and increase sustainability of the metallurgical industry. Biocarbon can be produced from a wide range of raw biomass ... -
Effect of Cathodic Polarization on the Susceptibility to Hydrogen Embrittlement in 5xxx, 6xxx and 7xxx Series Aluminium Alloys
(Master thesis, 2015)Aluminium is an interesting material for use in subsea applications due to the combination of low weight, good corrosion resistance and superior low temperature properties. So far, the use of aluminium alloys in offshore ... -
Effect of Cation Ordering on the Performance and Chemical Stability of Layered Double Perovskite Cathodes
(Journal article; Peer reviewed, 2018)The effect of A-site cation ordering on the cathode performance and chemical stability of A-site cation ordered LaBaCo2O5+δ and disordered La0.5Ba0.5CoO3−δ materials are reported. Symmetric half-cells with a proton-conducting ... -
The effect of cation size on structure and properties of Ba-based tetragonal tungsten bronzes Ba4M2Nb10O30 (M = Na, K or Rb) and Ba4M2Nb8Ti2O30 (M = Ca or Sr)†
(Peer reviewed; Journal article, 2024)The second largest family of oxide ferroelectrics, after perovskites, are the tetragonal tungsten bronzes (TTB) with the general formula A24A12C4B12B28O30. Cation disorder in TTBs is known to occur if the size difference ... -
Effect of cerium-based master alloy on the solidification grain structure of austenitic stainless steel
(Master thesis, 2023)Følgende arbeid har studert effekten av en cerium-basert kornforfiner på størkningstrukturen og mikropartikkel-populasjonen i et austenittisk rustfritt stål. Termisk anlayse kopper og større Y-blokk profiler har blitt ... -
Effect of Charge Basicity of Two Compositions on MnO Reduction During Smelting Ferromanganese
(Journal article; Peer reviewed, 2018)The effect of basicity of two different basic charges for reduction of MnO by solid carbon during smelting ferromanganese is considered. The effect of different charge compositions on MnO reduction in the temperature range ... -
Effect of CO2 Exposure on the Chemical Stability and Mechanical Properties of BaZrO3‐Ceramics
(Journal article, 2016) -
Effect of coating density on oxidation resistance and Cr vaporization from solid oxide fuel cell interconnects
(Journal article; Peer reviewed, 2017)Manganese cobalt spinel oxides are promising materials for protective coatings for solid oxide fuel cell (SOFC) interconnects. To achieve high density such coatings are often sintered in a two-step procedure, involving ... -
Effect of Coke Properties on the Bubble Formation at the Anodes During Aluminium Electrolysis in Laboratory Scale
(Journal article, 2017)The anodic reaction of aluminium electrolysis cells leads to the formation of CO2 bubbles, which partly screen the anode surface and leads to an increase in the cell voltage. An advantage of these bubbles is that the ... -
Effect of Compaction and Thermal De-coating Pre-treatments on the Recyclability of Coated and Uncoated Aluminium
(Journal article, 2022)Scrap pre-treatments, such as compaction and thermal de-coating, are standard industrial practices for recycling aluminium post-consumer scrap. This study compares the recyclability of a coated and uncoated 8111 alloy under ... -
Effect of composition and temperature on current efficiency for aluminium electrolysis from cryolite-based molten alumina electrolytes
(Journal article; Peer reviewed, 2017)The current efficiency (CE) for aluminium electrolysis in modern cells can be as high as 96 %. The main reason for loss in current efficiency is the so-called back reaction between dissolved metal and the anode product of ... -
Effect of Composition and Thermomechanical Processingon The Intergranular Corrosion of AA6000 Aluminium Alloys
(Doktoravhandlinger ved NTNU, 1503-8181; 2010:116, Doctoral thesis, 2010)In order to achieve the desired strength, AlMgSi (6000-series) alloys are often alloyed with either small (fraction of a wt%) Cu or excess (in relation to that required to form Mg2Si) amounts of Si. Both approaches can ... -
Effect of Copper and Zinc on Corrosion Behaviour and Mechanical Properties in 6082-Alloys
(Master thesis, 2015)Extruded Al-Mg-Si alloys with Cu additions are frequently used in heavy loaded structures, offshore installations and the transportation industry. In contrast to the positive effect Cu has on mechanical properties, the ... -
Effect of Copper Content on etching Response of Aluminum in Alkaline and Acid Solutions
(Master thesis, 2012)Copper are used as an alloying element in aluminum alloys to increase the strength of the material. By mixing copper and aluminum the good corrosion resistance of the pure aluminum decreases giving the alloy a lower corrosion ... -
Effect of cryorolling on microstructure and mechanical properties of a peak-aged AA6082 extrusion
(Journal article; Peer reviewed, 2017)Peak-aged AA6082 flat extrusions were cryorolled at liquid nitrogen temperature to three different thickness reductions, the reductions were 21%, 42% and 85%, respectively. Microstructure and plastic deformation behaviors ... -
Effect of crystallographic orientation in textured Baa0.92Ca0.08TiO3 piezoelectric materials
(Journal article; Peer reviewed, 2014)Strongly textured lead-free Ba0.92Ca0.08TiO3 piezoelectric ceramics were fabricated by tape casting and templated grain growth. Dense ceramics with both favorable and unfavorable texture were successfully prepared. Enhanced ... -
Effect of Cu2+ on deposition mechanism and structure of ZrO2-based conversion coatings on AA6060 aluminium alloys and their susceptibility to filiform corrosion
(Peer reviewed; Journal article, 2024)Zirconium oxide-based conversion coatings (CCs) were prepared from hexafluorozirconic acid, H2ZrF6, with and without CuII as an additive. The CCs were prepared on primary and recycled AA6060. The deposition mechanism, ...