Browsing Institutt for materialteknologi by Title
Now showing items 176-195 of 2579
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B diffusion in slag during slag refining for solar grade silicon
(Master thesis, 2011)Mass transfer rate of B during slag refining has been investigated in the resistance tube furnace at temperature 1600 ºC and the mass transfer coefficients of B have been determined. The values of mass transfer coefficients ... -
B-cation ordering and dielectric properties of relaxor ferroelectric Pb(Sc1/2Nb1/2)O3
(Master thesis, 2013)Molten salt synthesis and solid state synthesis were used to make relaxor ferroelectric Pb(Sc1/2Nb1/2)O3,abbreviated PSN in most literature. Many studies have previously been conducted on this material to obtain so called ... -
BaBi2O6: A Promising n-Type Thermoelectric Oxide with the PbSb2O6 Crystal Structure
(Journal article, 2021)Thermoelectric materials offer the possibility of enhanced energy efficiency due to waste heat scavenging. Based on their high-temperature stability and ease of synthesis, efficient oxide-based thermoelectrics remain a ... -
Band gap alterations of graphitic carbon nitride for photoelectrochemical water splitting
(Master thesis, 2023)En viktig energibærer for framtiden er hydrogengass, hvor utviklingen av effektive grønne produksjonsmetoder er nødvendig for å minimere miljøpåvirkningen av global oppvarming. En slik metode er fotoelektrolyse av vann, ... -
Barium titanate-based bilayer functional coatings on Ti alloy biomedical implants
(Peer reviewed; Journal article, 2021)Piezoelectric coatings have the ability to functionalise conventional structural materials into responsive devices. Today, piezoelectric coatings have been applied to both rigid and flexible substrates for sensing, actuating, ... -
Barrier Oxide Growth and Dissolution on Aluminium in Aqueous Media
(Doctoral theses at NTNU;2016:326, Doctoral thesis, 2016)The oxide formed during anodization of aluminium has been a subject of attention since the beginning of the 20th century, due to its protective properties. The oxide consists of two layers, a dense layer adjacent to the ... -
Bauschinger effect modelled by yield surface distortions
(Journal article; Peer reviewed, 2019)A model for distorting the yield surface by flattening the part in the reverse of the loading direction, is suggested. As the basis for the distortion, the model applies a pair of second-order back-stress tensors of similar ... -
The beginning and the end of the aluminium value chain
(Peer reviewed; Journal article, 2020)Metallic aluminium does not naturally occur in nature, and it was largely unknown, virtually a mystery, until 200 years ago. The modern aluminium production using a hydrometallurgical refining process for making alumina ... -
Behavior of Al4C3 Particles During Flotation and Sedimentation in Aluminum Melts
(Peer reviewed; Journal article, 2021)Al4C3 particles form during the primary production of aluminum via molten salt electrolysis due to the carbon solubility and direct contact between bath, metal, and carbon anodes. Additional Al4C3 may form during melt ... -
Behavior of Slag in Ferromanganese and Silicomanganese Smelting Process
(Peer reviewed; Journal article, 2021)A review of studies by Safarian et al. and Kim show that the smelting reaction at equilibrium for ferromanganese and silicomanganese alloys is defined by the coupled reaction in the carbon-saturated condition 2Mn––––+(Si ... -
Behaviour of Aluminium Carbide in Al-melts during Re-melting
(Journal article; Peer reviewed, 2019)The presence of non-metallic inclusions in aluminium has become a more critical issue with increasing demands on surface quality and low final wall thicknesses of products. Aluminium carbide particles form during the primary ... -
Behaviour of iron and titanium species in cryolite-alumina melts
(Dr.ingeniøravhandling, 0809-103X; 2000:118, Doctoral thesis, 2000)The solubility of divalent iron oxide in cryolite-based melts was studied. Both electrochemical and chemical techniques were employed. To ensure that only divalent iron was present in solution, the melt was contained in ... -
Behaviour of nickel coatings made by brush plating technology in conditions of cavitation erosion and corrosion
(Peer reviewed; Journal article, 2023)The basic hypothesis of the research was that the structure of the coating, i.e. the type of defects, affects the mechanical and electrochemical properties, as well as the resistance to cavitation erosion and corrosion. ... -
Behaviour of the slip-cast crucible as a contamination source during silicon directional solidification
(Master thesis, 2016)In this work the behaviour of the slip-cast crucible as a contamination source of multicrystalline silicon during directional solidification (DS) was investigated. Transport parameters of iron were estimated in two types ... -
Bending ductility and through thickness anisotropy in 6xxx extruded profiles
(Master thesis, 2013)6xxx aluminium alloy extruded profiles are widely used in the automotive bumper systems due to light weight, high strength and good ductility. Bending ductility dominates the behavior of bumper systems to absorb energy in ... -
Beneficiation of fluxed titaniferous slag to a marketable titania product using the modified upgraded slag process
(Peer reviewed; Journal article, 2021)Smelting production of a limestone-fluxed titaniferous slag with low MgO content for subsequent beneficiation using the modified Upgraded Slag (UGS) process was investigated, with the aim of producing a marketable titania ... -
Bi vacancy formation in BiFeO3 epitaxial thin films under compressive (001)-strain from first principles
(Peer reviewed; Journal article, 2019)Point defects in BiFeO3 affect both structural and functional properties. To elucidate the role of single Bi vacancies and Bi–O vacancy pairs we investigate their stability and effect on structural and ferroelectric ... -
Biaxial strength and slow crack growth in porous alumina with silica sintering aid
(Journal article, 2018)Biaxial strength, fracture toughness and subcritical crack growth are reported for coarse grained porous alumina ceramics. The materials were prepared with a varying amount of a silica sintering aid, which resulted in the ... -
Bifacial Solar Cells in Nordic Climate
(Master thesis, 2018)Bifacial solar cells can be the new trend within photovoltaic (PV) technology. They have the ability to take advantage of not only the direct irradiance from the sunlight, but also the indirect light which is reflected by ... -
Bimetallic Additive Manufacturing of IN718-CuAl7 for Tailored Functionalities - A Study in Mechanical Properties and Microstructural Features
(Master thesis, 2023)Additiv produksjon, også kjent som 3D-printing, av multimaterialdeler har vist seg å være verdifullt for å løse ingeniørproblemer sammenlignet med tradisjonelle produksjonsprosesser og énmaterialkomponenter. Ved å inkludere ...