Blar i Institutt for materialteknologi på tittel
Viser treff 1880-1899 av 2519
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Recovery Kinetics in High Purity and Commercial Purity Aluminium Alloys
(Journal article, 2013)Motivated by improving current softening models for recycle friendly alloys, softening was investigated in high purity and commercial purity aluminium alloys. Utilizing the electron backscatter diffraction (EBSD) technique, ... -
Recovery of Iron and Aluminum from Bauxite Residue by Carbothermic Reduction and Slag Leaching
(Peer reviewed; Journal article, 2021)The recovery of major components of bauxite residue by carbothermic reduction at 1550–1750 °C and subsequent slag leaching in a Na3CO3(aq) solution is studied. Iron recovers primarily to pig-iron and lime is added to tune ... -
Recovery of molybdenum and rhenium in scrub liquors of fumes and dusts from roasting molybdenite concentrates
(Peer reviewed; Journal article, 2019)The present work addresses the recovery of rhenium from scrub liquor of molybdenite concentrate roasting fume and dust by solvent extraction method. According to the results, recovery of rhenium from the scrub liquor is ... -
Recovery of Precious Metals (Au, Ag, Pt, and Pd) from Urban Mining Through Copper Smelting
(Peer reviewed; Journal article, 2020)With the aim of investigating deportments of precious metals in pyrometallurgical processing of waste electrical and electronic equipment, the distributions of selected precious metals (gold, silver, platinum, and palladium) ... -
Recrystallisation Behaviour in Extruded Profiles of Non-Dispersoid Containing Al-Mg-Si Alloys
(Master thesis, 2015)Hot extrusion of non-dispersoid containing aluminium alloys commonly ends with a fully or partially recrystallised grain structure. However, the recrystallisation mechanisms, whether static or dynamic (taking place during ... -
Recrystallization and phase transformation of light metals induced by electric current flash heating
(Doctoral theses at NTNU;2020:186, Doctoral thesis, 2020)Aluminium (Al), and titanium (Ti) alloys are two commonly used light metal materials in the aerospace and automotive industry due to their high strength-to-weight ratio. Various heat treatments are applied to improve the ... -
Recycled Aluminium Alloys and their Models: Role and Behaviour of Alloying Elements during Alkaline Etching
(Peer reviewed; Journal article, 2023)Alkaline etching is a common pretreatment for aluminum surfaces. Etching behavior was compared between an alloy based on post-consumer scrap (PCS) and several model alloys of rolled AA3005 and extruded AA6060 with ... -
Recycling and Utilisation of Secondary Aluminium Products
(Master thesis, 2018)Efficient utilisation of secondary aluminium products is increasingly important as the energy consumption and CO2 emissions are greatly reduced by recycling compared to primary production. The aim of this study was to ... -
Recycling of Al from incinerator bottom ash with screw extruder
(Master thesis, 2021)Abstract will be available on 2024-07-01 -
Recycling of Aluminium from Mixed Household Waste
(Chapter, 2020)Aluminium is used in packaging due to its density, strength and preservative capabilities. This paper outlines a methodology to evaluate the recyclability of aluminium waste, where parameters of scrap type, pre-treatment ... -
Recycling of Aluminium from Mixed Household Waste
(Chapter, 2020)Aluminium is used in packaging due to its density, strength and preservative capabilities. This paper outlines a methodology to evaluate the recyclability of aluminium waste, where parameters of scrap type, pre-treatment ... -
Recycling of Aluminum Scrap by Severe Plastic Deformation
(Journal article; Peer reviewed, 2011)The production of primary aluminum is an energy costly process. With the global warming being of concern, the secondary aluminum stream is becoming an even more important component of aluminum production and is attractive ... -
Recycling of automotive aluminum
(Journal article; Peer reviewed, 2010)With the global warming of concern, the secondary aluminum stream is becoming an even more important component of aluminum production and is attractive because of its economic and environmental benefits. In this work, ... -
Recycling of Fine Silicon Particles for Solar Grade Silicon Production
(Master thesis, 2018)The production of solar grade silicon wafers results in 50% wasted silicon. Due to the high volume of waste, recycling the fines into a useable material allows for use of all this valuable silicon. Currently there is no ... -
Recycling of Glass Wool Waste
(Master thesis, 2018)The importance of environmentally friendly solution is an ever-increasing concern of industries all over the country. The glass wool industry has for a long time had a problem regarding waste from their production process. ... -
Recycling of industrial silicon-kerf waste via leaching and flux-melting.
(Bachelor thesis, 2023)Produksjonen av solar grade silisium oblater som brukes i solcelleproduksjon er en lang og kompleks prosess som resultater i at 50% av rent silisium blir kastet vekk etter kutte prossesen. Dette har vært et problem som har ... -
Recycling of tellurium via copper smelting processes
(Peer reviewed; Journal article, 2020)The modern world continuously demands more raw materials for manufacturing all kinds of products. Nowadays, the lifetime of a single product can be very short, as is the case with electronic appliances. Waste electrical ... -
Recycling of the Rare Earth Oxides from Spent Rechargeable Batteries Using Waste Metallurgical Slags
(Journal article; Peer reviewed, 2013)A high temperature process for recycling spent nickel-metal hydride rechargeable batteries has been recently developed at SINTEF/NTNU. The spent battery modules were first frozen with liquid nitrogen for the de-activation ... -
Reducing the Carbon Footprint: Primary Production of Aluminum and Silicon with Changing Energy Systems
(Peer reviewed; Journal article, 2021)The world now pushes for a low-carbon future, and international goals for greenhouse gas emission reductions have been set. Industrial processes, including metallurgical processes, make up more than a fifth of the total ... -
Reduction and Dissolution Behaviour of Manganese Slag in the Ferromanganese Process
(Journal article; Peer reviewed, 2020)The reduction and liquidus behaviour of manganese slag with different basicities were studied in non-isothermal experiments in the temperature range of 1400–1500 °C. Certain amounts of quartz were added to Assmang ore ...