A5057740075- Metallurgical Processes and Thermodynamics
- Iron and Steelmaking Processes
- Metal Extraction and Bioleaching
- Advanced materials and composites
- Extraction and Separation Processes
- Minerals Flotation and Separation Techniques
- Advanced ceramic materials synthesis
- Materials Engineering and Processing
- Catalytic Processes in Materials Science
- Molten salt chemistry and electrochemical processes
- Thermochemical Biomass Conversion Processes
- Thermal and Kinetic Analysis
- Metal Alloys Wear and Properties
- Recycling and Waste Management Techniques
- Mining and Gasification Technologies
- Microstructure and Mechanical Properties of Steels
- Glass properties and applications
- Graphite, nuclear technology, radiation studies
- Thermodynamic and Structural Properties of Metals and Alloys
- Recycling and utilization of industrial and municipal waste in materials production
- Bauxite Residue and Utilization
- Aluminum Alloy Microstructure Properties
- Solidification and crystal growth phenomena
- Nuclear Materials and Properties
- Chemical Thermodynamics and Molecular Structure
Materials Science & Engineering
2011-2021
UNSW Sydney
2012-2021
University of Wollongong
2012
Jernkontoret (Sweden)
2010
John Wiley & Sons (Germany)
2010
VDEh-Betriebsforschungsinstitut
2010
Max-Planck-Institut für Nachhaltige Materialien
2010
Chinese Society for Electrical Engineering
2010
Material Sciences (United States)
2007
Russian Academy of Sciences
2000
Abstract This paper presents examination results of reduction and carburization the oxides iron, manganese, chromium, titanium by CH 4 –H 2 –Ar gas mixture. The reactions were investigated in a laboratory fixed‐bed reactor temperature‐programmed isothermal‐reduction experiments. extents kinetics metal as function composition temperature determined on‐line, off‐gas analysis using mass spectrometer. Methane‐containing with high carbon activity (above unity relative to graphite) provided...
The reduction of titania-ferrous ore (ironsand) containing 57.2 wt% iron and 7-8 TiO2 was investigated in non-isothermal isothermal experiments using CO-CO2-Ar gas mixtures a laboratory fixed bed reactor. Samples the course were characterised XRD, EPMA SEM.Two types particles identified ironsand: 1) homogeneous titano-magnetite with cubic spinel structure (a major type); 2) non-homogeneous particles, by lamellar rhombohedral titano-hematite, exsoluted from titano-magnetite.Titano-magnetite,...
The reduction of titania-ferrous ore (ironsand) containing 57.2 mass% iron and 7-8 TiO2 was investigated in isothermal experiments using H2-Ar gas mixtures a laboratory fixed bed reactor the temperature range from 973 to 1 373 K. degree measured an on-line Dew Point sensor samples course were characterized SEM XRD analyses.The complete oxide by 25vol%H2-Ar achieved within 60 min at higher than 123 At 173 K, rate increased with hydrogen content reducing up 25 vol%H2. composition after 2-h...
This paper investigated melting properties and viscosity of SiO 2 ‐CaO‐Al O 3 ‐B fluxes with a mass ratio CaO/SiO from 0.83 to 1.5 B content 5 9 wt%. Melting these were studied using the hot stage microscopy method; was measured rotating cylinder method. Break temperature also determined change in flux cooling process. Equilibrium liquidus calculated FactSage. Increase found decrease hemispherical viscosity. The addition did not significantly affect but decreased Viscosity analyzed relation...
Three metallurgical cokes made from coking coals over a significant range in rank were subjected to treatment with blast furnace-like gas composition-temperature profile 1673 K, annealing under N2 2273 K and gasification subsequent at 1873 K. The degradation of after reaction was characterised using I-drum tumbling, tensile testing, ultra-micro indentation X-ray diffraction. Both decreased the mechanical strength coke. Compared same temperature caused larger for all three cokes, effect more...
The paper examined an effect of preoxidation titania-ferrous ore (New Zealand ironsand) on the structure and reduction by carbon monoxide.The major phase in ironsand is titanomagnetite, Fe3O4-Fe2TiO4 solid solution, with spinel cubic structure. In non-isothermal titanomagnetite was oxidized to maghemite then transformed rhombohedral titanohematite, Fe2O3-FeTiO3 solution. Isothermal at 1 273 K titanohematite partly pseudobrookite (Fe2TiO5), however, complete oxidation Fe2+ Fe3+ not achieved...
Carbothermal reduction and nitridation of ilmenite concentrates different grades synthetic rutile were studied in isothermal experiments hydrogen – nitrogen gas atmosphere pure a tube reactor. Concentrations CO CO2 the off measured online using infrared analyser. The reaction products analysed by X-ray diffraction. Iron oxides reduced to metallic iron, titanium converted oxycarbonitride. Reduction containing was significantly faster than nitrogen. rate conversion titania oxycarbonitride 50...
Metallurgical cokes were subjected to gasification by CO–CO2–N2 gas with blast-furnace-like composition–temperature profile 1673 K (1400 °C) and annealing under N2 at temperature up 2273 (2000 °C). Pore structure of was examined using image analysis. Porosity pore size both enlarged conditions. The change during mainly a result the Boudouard reaction; development upon attributed reactions mineral matters carbon further devolatilization. Annealing caused decrease in average roundness, an...
The paper presents results of reduction pure manganese oxides by methane containing gas in non-isothermal and isothermal experiments mechanisms. extent rate oxide were determined on-line off-gas analysis using a mass-spectrometer fixed bed laboratory reactor the temperature range 1000-1200°C at different compositions.Manganese reduced to carbide Mn7C3. High methane-containing comparison with carbothermal attributed high carbon activity reducing gas, which was 15-50 (relative graphite)....