Browsing Institutt for materialteknologi by Title
Now showing items 827-846 of 2512
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Enhanced in-plane ferroelectricity in BaTiO3 thin films fabricated by aqueous chemical solution deposition
(Journal article; Peer reviewed, 2018)Ferroelectric BaTiO3 is widely used in capacitors, but the low Curie temperature limits a further use of BaTiO3. In this work we present an aqueous chemical solution deposition (CSD) route for BaTiO3 thin films, demonstrating ... -
Enhanced nucleation and precipitation hardening in Al-Mg-Si(-Cu) alloys with minor Cd additions
(Peer reviewed; Journal article, 2020)This work reports a novel effect of impurity element Cd on enhancing the precipitation kinetics and increasing the peak hardness of Al–Mg–Si(–Cu) alloys during artificial ageing. It is found that the number density of age ... -
Enhanced thermoelectric performance and high-temperature thermal stability of p-type Ag-doped β-Zn4Sb3
(Journal article, 2018)Here we report that the thermoelectric properties of bulk β-Zn4Sb3 can be improved in the range 300–575 K by Ag doping at the Zn sites. Proper Ag doping leads to decreased electrical resistivity and increased Seebeck ... -
Enhanced Thermoelectric Performance through Tuning Bonding Energy in Cu2Se1–xSx Liquid-like Materials
(Journal article; Peer reviewed, 2017)Thermoelectric materials require an optimal carrier concentration to maximize electrical transport and thus thermoelectric performance. Element doping and composition off-stoichiometry are the two general and effective ... -
The Enhancing Effect of α–FeOOH on Ni Surfaces Toward Electrolytic Water Splitting
(Journal article; Peer reviewed, 2023)For decades Ni has been known as an electrocatalyst for the oxygen evolution reaction (OER); however, the crucial role that Fe plays in enhancing the electrocatalytic activity of Ni still requires deeper investigation and ... -
Environmentally friendly substitute of phenolic resin in solid state sintered silicon carbide
(Master thesis, 2020)Silisiumkarbid er et meget kovalent materiale med mange enestående egenskaper. På grunn av de sterke, kovalente bindingene er det vanskelig å oppnå høye tettheter ved sintring og sintringsadditiver som karbon og bor m ̊a ... -
Enzymatisk forbehandling av kjemisk masse ved høy konsentrasjon
(Bachelor thesis, 2020)Sammendraget er konfidensielt. -
Enzymatisk hydrolyse av acetonforbehandlet biomasse: Fokus på høyt sukkerutbytte og effektiv utnyttelse av biprodukter
(Bachelor thesis, 2020)Sammendrag kan ikke offentliggjøres grunnet at oppgaven er konfidensiell. -
Epitaxial (100), (110), and (111) BaTiO3 films on SrTiO3 substrates — A transmission electron microscopy study
(Peer reviewed; Journal article, 2021)Chemical solution deposition (CSD) is a versatile method to fabricate oxide films. Here, the structure and local variations in the chemical composition of BaTiO3 (BTO) films prepared by CSD on (100), (110), and (111) SrTiO3 ... -
Epitaxial K0.5Na0.5NbO3 thin films by aqueous chemical solution deposition
(Journal article; Peer reviewed, 2019)We report on an environmentally friendly and versatile aqueous chemical solution deposition route to epitaxial K0.5Na0.5NbO3 (KNN) thin films. The route is based on the spin coating of an aqueous solution of soluble ... -
Epoxy based coatings with graphene and graphene oxide additions for antifouling applications
(Master thesis, 2021)Prosessen der uønsket marin vekst akkumuleres på marine konstruksjoner kalles biologisk begroing. Forebygging av biologisk begroing er gunstig med hensyn til økonomiske aspekter, miljø, kostnader og vedlikehold for flere ... -
Epoxy-Based Nanocomposites for High-Voltage Insulation: A Review
(Journal article, 2018)Epoxy nanocomposites, with inorganic oxide nanoparticles as filler, can exhibit novel property combinations, such as enhanced mechanical strength, higher thermal conductivity, increased dielectric breakdown strength, and ... -
Equation of state for confined fluids
(Peer reviewed; Journal article, 2022)Fluids confined in small volumes behave differently than fluids in bulk systems. For bulk systems, a compact summary of the system's thermodynamic properties is provided by equations of state. However, there is currently ... -
Equilibrium of [Si]/(SiO2) in Carbothermic Selective Reduction of Titanium Concentrate Ore for the Preparation of Titanium Oxycarbide
(Journal article; Peer reviewed, 2018)Carbothermic selective reduction of titanium concentrate ore for the preparation of titanium oxycarbide was presented and SiO2 was found to be partly reduced during the process. The equilibrium relationship between Si ... -
Etablere, optimalisere og validere komposisjonsanalyse for rikgass i henhold til ASTM D1945, ISO6975, GPA2286, eller ekvivalent, med kvantifisering av metan til dekan
(Bachelor thesis, 2020)Oppgavens hensikt var å etablere en gasskromatografisk analysemetode av naturgass for kvantifisering av hydrokarbonene metan til dekan i henhold til standardene ASTM D1945, ISO6975 og GPA2286. Gasskromatograf ble levert ... -
Evaluating the tensile properties of aluminum foundry alloys through reference castings - A review
(Journal article; Peer reviewed, 2017)The tensile properties of an alloy can be exploited if detrimental defects and imperfections of the casting are minimized and the microstructural characteristics are optimized through several strategies that involve die ... -
Evaluation and Quantification of the Impact of Soaking on the Mechanical Properties of KNN
(Master thesis, 2022)Denne masteroppgaven har som mål å evaluere effekten av væske på de mekaniske egenskapene til 𝐾1−𝑥𝑁𝑎𝑥𝑁𝑏𝑂3 (KNN) for å bidra til utviklingen av bedre KNN baserte ortopediske implantater. Prøvene ble prosessert ... -
Evaluation of Calcium Aluminate Slags and Pig Irons Produced from the Smelting-Reduction of Diasporic Bauxite
(Peer reviewed; Journal article, 2021)This work evaluates the characteristics of calcium aluminate slag and pig iron samples obtained from the smelting of calcined and reduced diasporic bauxite ore. The study is conducted in the Pedersen process framework, ... -
Evaluation of Filtration Efficiency of Ceramic Foam Filters (CFF) Using a Hydraulic Water System
(Journal article; Peer reviewed, 2018)The filtration efficiency of Ceramic Foam Filters (CFFs) of grades 50 and 65 has been quantitatively evaluated using a hydraulic water system. Distilled water seeded with Polystyrene Microsphere particles with a distribution ... -
Evaluation of microstructural and environmental effects on the hydrogen uptake and desorption in high-strength carbon steels: A thermal desorption spectroscopy study
(Peer reviewed; Journal article, 2023)The hydrogen uptake in three high-strength carbon steels is studied after exposure to three different environments: an aqueous solution with CO2 bubbling, CO2/H2S bubbling, and cathodic charging without external gassing. ...