Browsing Institutt for materialteknologi by Title
Now showing items 193-212 of 2501
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Bipolar Plates for PEM Systems
(Doctoral thesis at NTNU;2016:247, Doctoral thesis, 2016)Summary of thesis: The Bipolar Plate (BPP) is an important component in both Proton Exchange Membrane Fuel Cells (PEMFCs) and Proton Exchange Membrane Water Electrolyzers (PEMWEs). Bipolar plate material and processing ... -
Black Silicon Structures
(Master thesis, 2018)Nanostructuring on the surface of silicon can make high efficient solar cells possible by lowering the reflection. Silicon wafers were successfully wet chemically etched with metal-assistance, to create a black silicon ... -
Blacklight sintering of ceramics
(Peer reviewed; Journal article, 2022)For millennia, ceramics have been densified via sintering in a furnace, a time-consuming and energy-intensive process. The need to minimize environmental impact calls for new physical concepts beyond large kilns relying ... -
Borated Salt Additives in LiFSI Based Electrolytes and Their Compatibility with Silicon Anodes, Aluminum Current Collectors and NMC Cathodes in Li-ion Batteries
(Master thesis, 2020)Den dominerende batteriteknologien på markedet i dag er litium ione (Li-ion) batterier. De har lenge dominert batterimarkedet, og spesielt innen forbrukselektronikk er bruken av Li-ion batterier utbredt. Men teknologien ... -
BORON REMOVAL FROM MOLTEN SILICON BY GAS BLOWING USING DIFFERENT GAS MIXTURES
(Master thesis, 2016)- -
Boron Removal from Silicon by Humidified Gases
(Journal article; Peer reviewed, 2014)Boron (B) is one of the most problematic impurities to remove from metallurgical grade silicon in the production of more pure solar grade silicon (SoG-Si). In the present work, recent progresses in the application of ... -
Boron Removal from Silicon by Moisturized Gases
(Chapter, 2017)The photovoltaic (PV) industry is in rapid growth and a large supply of PV feedstock materials must be provided to maintain this growth. Since silicon is still the dominant material for the fabrication of solar cells, ... -
Boron removal from silicon by steam and hydrogen
(Doctoral thesis at NTNU;2015:268, Doctoral thesis, 2015)Solar cells are among the most promising technologies for development of sustainable power generation in terms of environmental impact and resource availability, and crystalline silicon cells dominate the present market ... -
Boron Removal from Silicon Melt by gas Blowing Technique
(Peer reviewed; Journal article, 2022)Due to the detrimental effects of boron (B) on the efficiency of silicon (Si) photovoltaic cells, complete boron removal from Si is necessary to produce solar grade Si (SoG–Si, with a maximum limit of 0.1 ppmw boron). Gas ... -
Boron Removal from Silicon Melts by H2O/H2 Gas Blowing: Mass Transfer in Gas and Melt
(Journal article; Peer reviewed, 2014)Metallurgical routes for solar grade silicon production are being developed as alternatives to chemical processes for their potential to achieve cost reductions, increased production volume, and reduced environmental and ... -
BORON REMOVAL FROM SILICON USING GAS REFINING AND DIFFERENT CRUCIBLE MATERIALS
(Master thesis, 2016)- -
Boron trapping at dislocations in an additively manufactured polycrystalline superalloy
(Peer reviewed; Journal article, 2023)Segregation of solutes at dislocations in a nickel-based superalloy produced by laser powder bed fusion was investigated. Transmission electron microscopy has shown a high dislocation density present in the as-built ... -
Briquetting of Manganese Oxide Fines with Organic Binders - How well suited are organic binders for agglomeration of Mn-oxide fines?
(Master thesis, 2017)Dust and fines are created throughout the ferromanganese metal production. These fines are collected from ventilation filters, screening operations and off-gas cleaning facilities. As the fines contain a substantial amount ... -
Brittle and Ductile Fracture of X80 Arctic Steel
(Doktoravhandlinger ved NTNU, 1503-8181; 2012:258, Doctoral thesis, 2012)This PhD work has focused on the effect of microstructure and changes in microstructure introduced by welding procedure, on the brittle to ductile transition properties of high strength low alloy steels which have been ... -
Bubble evolution and anode surface properties in aluminium electrolysis
(Journal article, 2015)One significant contribution to the anodic potential during aluminum electrolysis is the formation of CO2 bubbles that screen the anode surface. This effect creates an additional ohmic resistance as well as an increased ... -
Bubble Evolution on Different Carbon Anode Designs in Cryolite Melt
(Peer reviewed; Journal article, 2020)The anode potential has been shown to be highly dependent on anode geometry and orientation in the Hall–Héroult process. This work is an experimental laboratory scale study of the effect of anode geometry and orientation ... -
Bubble Phenomena and Bubble Properties for Different Carbon Anodes in Cryolite Melt
(Doctoral theses at NTNU;2022:333, Doctoral thesis, 2022)This doctoral work is an experimental laboratory scale study of the effect of anode geometry, anode orientation and carbon anode material on bubble behavior and bubble properties in cryolite melt. The increased knowledge ... -
Bubble Phenomena and Bubble Properties for Horizontal and Vertical Carbon Anode Surfaces in Cryolite Melt Applying a See‐Through Cell
(Peer reviewed; Journal article, 2021)Gas bubble behavior on a carbon anode in a cryolite melt has been studied using a see-through cell. The phenomena studied have been growth, coalescence, detachment, and wetting during electrolysis. The surface orientation ... -
Bulk Metallic Glasses: Deformation and Design
(Doctoral theses at NTNU;2019:43, Doctoral thesis, 2019)Bulk metallic glasses are a group of alloys with amorphous atomic structure. When these alloys cool sufficiently fast, the atoms will “freeze” in the chaotic structure of the melt, rather than form crystals like most metals. ... -
Bulk substitution of F-terminations from Ti3C2Tx MXene by cation pillaring and gas hydrolysation
(Journal article, 2023)Applications of 2D MXenes are limited by the difficulty of controlling bulk termination groups after the initial HF etching step without forming surface oxides. Here, we report on gas hydrolysation using a continuous flow ...