Blar i NTNU Open på forfatter "Folstad, Marit Buhaug"
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Disintegration of Six Different Quartz Types during Heating to 1600 °C
Folstad, Marit Buhaug; Yu, Han; Wang, Haijuan; Tangstad, Merete (Journal article; Peer reviewed, 2023) -
Dissolution Rate and Wettability of SiO2-CaO-Al2O3 Slags on Quartz
Kristiansen, Save (Master thesis, 2023)Denne studien har som mål å undersøke fuktningsgraden og reaksjonskinetikken av SiO2 –CaO–Al2O3 slagg på industriell kvarts for å forstå interaksjonene mellom industrislagg og -kvarts i silisium- og ferrosilisiumproduksjon. ... -
Effect of Different Polymorphs of SiO2 on the Reaction between SiO2 and SiC in Si Production
Folstad, Marit Buhaug (Master thesis, 2017)The aim of this work have been to investigate the phase transformations in silica (SiO2) during heating to target temperature, and the effect of SiO2 polymorphs on the reduction reaction between SiO2 and silicon carbide ... -
Effect of different SiO2 polymorphs on the reaction between SiO2 and SiC in Si production
Folstad, Marit Buhaug; Ringdalen, Eli; Tveit, Halvard; Tangstad, Merete (Peer reviewed; Journal article, 2021)This work investigates the phase transformations in silica (SiO2) during heating to a target temperature between 1700 °C and 1900 °C and the effect of SiO2 polymorphs on the reduction reaction 2SiO2 + SiC = 3SiO + CO in ... -
Investigation of slag and condensate from the charge top in a FeSi75 furnace
Folstad, Marit Buhaug; Jusnes, Karin Fjeldstad; Tangstad, Merete (Chapter, 2023)Metallurgical silicon/ferrosilicon is produced industrially in submerged arc furnaces by carbothermic reduction of quartz. In addition to raw materials, oxide impurities are present in the furnace. Accumulated slag is ... -
Slag and its effect on Si and FeSi production
Folstad, Marit Buhaug (Doctoral theses at NTNU;2023:317, Doctoral thesis, 2023)Silicon (Si) is one of the most useful elements on earth and is popular due to its semiconductor characteristics and its abundance in form of quartz (SiO2). Both metallurgical Si and ferrosilicon (FeSi) are produced ...