Blar i Institutt for materialteknologi på tittel
Viser treff 520-539 av 2502
-
Development of Piezoelectric Composite Ceramic Coatings on Metal Substrates for Biomedical Applications
(Master thesis, 2022)Helbredelse av skadede ben kan forbedres ved å øke benveksten. Dette kan gjøres ved hjelp av elektrisk stimulering. Piezoelektriske implantatmaterialer er en mulighet for å oppnå denne stimuleringen. Piezoelektriske keramer ... -
Development of polymer-nanoparticle composite with high refractive index
(Master thesis, 2016)A newly developed lens technology utilizes a soft high refractive index polymer to change focus. By further increasing the refractive index of the polymer, without lowering the transmittance of visible light, the overall ... -
Development of Rare Earth Metal Iron Oxides as Mixed Ionic and Electronic Conductors
(Master thesis, 2014)In recent years there has been an increasing interest in finding a new and less energy demanding alternative to cryogenic distillation in the production of pure oxygen gas. The use of oxygen permeable membranes has been ... -
Development of Thermoelectric n-type Oxides in the La-Sr-Ti-O-System
(Master thesis, 2013)Development of donor-doped thermoelectric (TE) perovskite oxides based on strontium titanate (STO) was investigated with respect to synthesis, phase stability, and TE properties. La was employed as an A-site donor-dopant ... -
DFT study of MXenes
(Master thesis, 2021)The development of Rechargable Magnesium Batteries (RMB) has been an active area of research over the past decades, and is a promising alternative to state-of-the art Li-ion batteries. It is promising because it could offer ... -
DFT Study of the Defect Chemistry in the Lithium-Garnet LLZO with Dopants Al, Zn, and Mg
(Master thesis, 2020)Granat Li7La3Zr2O12 (LLZO) er et ledende materiale i jakten på et effektivt elektrolyttmateriale i faststoff-litiumbatteriet. Aliovalente dopemidler som det velkjente Al har vist seg å stabilisere den kubiske fasen, som ... -
Dielectric and piezoelectric properties of barium calcium zirconate titanate ceramics
(Master thesis, 2019)Det ferroelektriske systemet barium calcium zirconate titanate er av høy interesse for bruk i industrielle applikasjoner på grunn av eksepsjonelt høye piezoelektriske koeffisienter. Videre så utgjør det et interessant ... -
Diffusion couple study of the interaction between Cr2O3 and MnCo2O4 doped with Fe and Cu
(Peer reviewed; Journal article, 2019)Manganese cobalt spinel oxides are promising coating materials for the protection of ferritic stainless steel interconnects in solid oxide fuel cell (SOFC) stacks. The interaction between such coatings and the steel is ... -
Diffusion of alkali metals in the first stage graphite intercalation compounds by vdW-DFT calculations
(Journal article; Peer reviewed, 2015)Diffusion of alkali metal cations in the first stage graphite intercalation compounds (GIC) LiC6, NaC6, NaC8 and KC8 has been investigated with density functional theory (DFT) calculations using the optPBE-vdW van der Waals ... -
Diffusion studies of Fe in amorphous quartz for the PV industry
(Master thesis, 2020)Kvartsdiglene som brukes til å støpe multikrystallinsk silisium (mc-Si) til solcelleindustrien er en dominerende forurensningskilde i silisiumproduksjonen. For høye konsentrasjoner av metalliske urenheter, som jern, i ... -
Digitalisering av energi sektoren
(Bachelor thesis, 2019)Repsol er i ferd med å utvikle Nidaros feltet og vil lære av erfaringer gjort ved Kalvskinnet feltet. Erfaringene fra Kalvskinnet er at feltet hadde store produksjonstap knyttet til uplanlagte hendelser, og da spesielt ... -
Digitalisering og automatisering av inspeksjonsdata for offshore prosessrørledninger
(Bachelor thesis, 2021)Sammendrag Denne bacheloroppgaven er skrevet i samråd med NTNU og MainTech AS. Rapporten tar for seg problemstillingen; «hvordan kan digitalisering av beregninger og resultater effektivisere oversikten over rørkomponentenes ... -
Dimensionality-induced change in topological order in multiferroic oxide superlattices
(Peer reviewed; Journal article, 2021)We construct ferroelectric ðLuFeO3Þm=ðLuFe2O4Þ superlattices with varying index m to study the effect of confinement on topological defects. We observe a thickness-dependent transition from neutral to charged domain walls ... -
Dipentamethylene thiuram tetrasulfide-based cathodes for rechargeable magnesium batteries
(Peer reviewed; Journal article, 2020)Rechargeable Mg batteries (RMBs) represent a possible route for low-cost energy storage applications, but they are lacking a satisfactory cathode material. Conventional sulfur (S8) cathodes have shown promise, yet they ... -
Direct electrochemical reduction of hematite pellets in alkaline solutions
(Journal article, 2014)Our previous studies on the electrowinning of iron from hematite particles suspended in sodium hydroxide solutions demonstrated that iron was produced through a direct solid phase electrochemical reduction of the oxide ... -
Direct Method for Producing Scandium Metal and Scandium-Aluminium Intermetallic Compounds from the Oxides
(Journal article; Peer reviewed, 2018)The electrochemical de-oxidation process, also called FFC-Cambridge process, has been proposed previously to produce reactive metals and their alloys through reduction of their metal oxides. The process works by introducing ... -
Direct monitoring of minority carrier density during light induced degradation in Czochralski silicon by photoluminescence imaging
(Journal article; Peer reviewed, 2013)In this paper, we present a new method for studying the light induced degradation process, in which the minority carrier density is monitored directly during light soaking by photoluminescence imaging. We show experimentally ... -
Direct observation of ferroelectric field effect and vacancy-controlled screening at the BiFeO3/LaxSr1−xMnO3 interface
(Journal article, 2014)The development of interface-based magnetoelectric devices necessitates an understanding of polarization-mediated electronic phenomena and atomistic polarization screening mechanisms. In this work, the LSMO/BFO interface ... -
Direct Production of Aluminum Manganese and Silicon Alloys in Aluminum Reduction Cells: A Laboratory Test
(Journal article, 2022)Aluminum smelters produce pure aluminum in reduction cells by the Hall-Héroult process but supply a variety of alloys to their customers. The alloys are produced in the cast house, as master alloys containing the desired ...