Blar i Institutt for materialteknologi på tittel
Viser treff 1756-1775 av 2527
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Pistachio‐Shuck‐Like MoSe2/C Core/Shell Nanostructures for High‐Performance Potassium‐Ion Storage
(Journal article; Peer reviewed, 2018)Potassium‐ion batteries (KIBs) have recently attracted intensive attention because of the abundant potassium resources and their low cost and high safety. However, the major challenge faced by KIBs lies in the lack of ... -
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 ... -
Pitting corrosion of additive manufactured AISI 316L and Alloy 718
(Master thesis, 2020)Additivprodusert stål har gunstige produksjonsaspekter i både et effektivt og økonomisk syn sammenlignet med tradisjonelle produksjonsmetoder. Før tradisjonelt produserte korrosjonsbestandige legeringer blir skiftet ut med ... -
Pitting Corrosion of Super Duplex Stainless Steel - Effect of Isothermal Heat Treament
(Master thesis, 2016)Super duplex stainless steels (SDSS), with a chromium content of 25 wt$\%$, contain a duplex structure which consists of ferrite and austenite, and have a pitting resistance equivalent number (PREN) equal or higher than ... -
Pitting Corrosion of Super Duplex Stainless Steel - Effect of Tungsten and Isothermal Heat Treatments
(Master thesis, 2017)Duplex stainless steels (DSS) and super duplex stainless steels (SDSS) can be described as austenitic-ferritic stainless steels with a chromium content of 22 and 25 %, respectively. Because of their good combination of ... -
Pitting on Carbon Cathodes in Aluminium Electrolysis Cells
(Journal article; Peer reviewed, 2018)Uneven cathode wear is one of the key challenges for the lifetime of aluminium electrolysis cells. Here we report on autopsy of several potlinings with focus on the surface morphology of the carbon cathodes. The surface ... -
Plastic-Anisotropy Modelling: Texture, Strain-Rate and Strain-Path Changes
(Doktoravhandlinger ved NTNU, 1503-8181; 2013:304, Doctoral thesis, 2013)The work presented in this thesis deals with the computational modelling of the plastic anisotropy induced in the materials during the deformation process on three different scales. The main mechanism responsible for plastic ... -
Plasticity of solid solution Al-Mn and Al-Mn-Si alloys
(Journal article, 2024)The influence of Mn and Si on the mechanical properties of solid solution Al-Mn and Al-Mn-Si alloys have been studied at 4 K, 78 K, and 298 K. The solute strengthening potency of the yield strength increases with decreasing ... -
Plastpellets i marint miljø: kildesporing og nedbrytning av pellets fra utslipp ved kysten av Sør-Afrika og Norge
(Bachelor thesis, 2021)Utslipp av plastpellets er en av de mest omfattende kildene til plastforurensning i det marine miljø. Pelletene defineres som mikroplast, og kan potensielt medføre store konsekvenser for livet i havet. Utslippene gir ... -
Platinum and Platinum Group Metal-Free Catalysts for Anion Exchange Membrane Fuel Cells
(Journal article; Peer reviewed, 2020)The development of active hydrogen oxidation reaction (HOR) and oxygen reduction reaction (ORR) catalysts for use in anion exchange membrane fuel cells (AEMFCs), which are free from platinum group metals (PGMs), is expected ... -
Polarization and strain response in Bi0.5K0.5TiO3-BiFeO3 ceramics
(Journal article; Peer reviewed, 2012)Highly dense and phase-pure ferroelectric ceramics in the (1-x)Bi0.5K0.5TiO3–xBiFeO3 system have been prepared and examined in a wide range of composition (0.1 ≤ x ≤ 0.9). The dielectric and electromechanical properties ... -
Polarization Topology at the Nominally Charged Domain Walls in Uniaxial Ferroelectrics
(Journal article; Peer reviewed, 2022) -
Poling-induced inverse time-dependent microstrain mechanisms and post-poling relaxation in bismuth ferrite
(Peer reviewed; Journal article, 2020)Domain-wall dynamics under strong, super-coercive electric fields in polycrystalline bismuth ferrite (BiFeO3) are not well established due to the experimental difficulties in processing high phase purity perovskite with ... -
Polymer failure modeled by Molecular Dynamics
(Master thesis, 2014)This thesis is written as a mandatory part of the master degree program Materials Science and Engineering at NTNU, spring 2014. This thesis has been done for the Departement of Engineering Design and Materials.Molecular ... -
Porosity development in composite carbon materials during heat treatment
(Doktoravhandlinger ved NTNU, 1503-8181; 2007:101, Doctoral thesis, 2007) -
Porosity Reduction and Characterization of Aluminium Components Produced by Additive Manufacturing
(Master thesis, 2017)Selective laser melting (SLM) is a relatively novel method used to produce metallic parts directly from computer models by selectively fusing metallic powder. The production is fundamentally different from traditional ... -
Porous Carbon Anodes for the Supply of Methane during Electrowinning of Aluminium
(Chapter, 2016)One of the major downsides of the current aluminium production process is the high amount of CO2 e mission. One alternative is to replace the consumable carbon anodes with inert anodes so that oxygen evolves instead of CO2 ... -
Porous Silicon as Anode Material for Li-ion Batteries: Structure and Performance
(Master thesis, 2013)Silicon has proven to have a great potential as anode material in lithium-ion batteries due to its high theoretical electrochemical capacity. However, silicon anodes deteriorate quickly during cyclic charging and discharging, ... -
Portland Clinker-Fly Ash Cements – Relation between Compressive Strength and Microstructure
(Chapter, 2021)Portland cements were made by mixing 4 different clinkers with 2 gypsum levels and 0-5% limestone powder. The compressive strength after 28 days of curing varied from 40 (5802) to 70 MPa (9718 psi) for mortar with equal ... -
Position controlled Growth of GaAs/AlGaAs core-shell Nanowires - more uniform in their structural and optical Properties?
(Master thesis, 2014)Semiconducting nanowires (NWs), especially those with a direct band gap, could be promising building blocks in future optoelectronic devices. Position controlled, self catalyzed GaAs/AlGaAs core-shell NWs with an AlGaAs ...