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Veena Sahajwalla

Veena Sahajwalla
Professor

School of Materials Science and Engineering
University of New South Wales
NSW 2052, Australia

Tel +61 2 9385 4426
Fax +61 2 9385 5956
Email veena@unsw.edu.au





Research Areas


Research Group at University of New South Wales

Professor Veena Sahajwalla is the Director of Sustainable Materials Processing Research in the School of Materials Science and Engineering, UNSW. Her 20-member research group is focussed on sustainability of materials processing, including novel recycling of waste plastics in steel making, lowering of energy and emissions in metals processing, novel iron/steel making technologies, ferro-alloys and non-ferrous metals processing.

For more information, please email Professor Veena Sahajwalla veena@unsw.edu.au

Education

  • BTech, Metallurgical Eng., Indian Institute of Technology, Kanpur India (1986)
  • MASc, Metals and Materials Eng., University of British Columbia, Canada (1988)
  • PhD, Materials Science and Eng., University of Michigan, USA (1992)
Recent Appointments

  • 1992-1994, Research Scientist, CSIRO Division of Mineral & Process Eng
  • 1994-1996, Lecturer, School of Materials Science and Engineering, UNSW
  • 1996- 2000, Senior Lecturer, School of Materials Science and Engineering, UNSW
  • 2001-2003, Associate Professor, School of Materials Science & Engineering, UNSW
  • 2004 Professor, School of Materials Science & Engineering, UNSW
Research Interests

Sustainable processing of materials based on fundamentals of high temperature reactions occurring in metallurgical processes include transforming existing industries and develop new materials processes to enhance sustainability by decreasing pollution, GHG emissions, energy consumption and improving eco-efficiency of materials processing. Projects underway include investigation of innovative lower temperature blast furnace process, utilisation of waste plastics in ironmaking and steelmaking technologies.

Recycling Waste Plastics in Electric Arc Furnace Steelmaking:

This project will make significant contributions towards innovative recycling of waste plastics in EAF steelmaking as a carbon resource. Focusing specifically on a crucial aspect of a novel recycling process, in-depth high temperature (1550-1650°C) investigations on plastics/slag interactions and slag foaming on a wide range of plastics will be followed by extensive industrial trials, to determine their optimum utilization in steelmaking. The new technology will have two significant advantages: it will be a major step towards tackling the global problem of disposing of waste plastics in an environmentally sustainable way; and it will reduce the industry’s reliance on coke, the production of which involves considerable harmful gas emissions.

Recycling Alumina-Carbon Refractory Waste in Steelmaking:

Our research will make significant contributions towards developing novel and recycled alumina-carbon refractories through the innovative use of refractory waste. We will conduct an in-depth investigation on carbon dissolution, impurity reactions, refractory degradation and recycling, through high-temperature interactions of alumina-carbon refractories and molten steel. We will determine the optimum conditions for the recycling of waste refractories in steelmaking, based on the profound understanding that we will gain of material characteristics such as impurity content/composition, and their role in these interactions. This will be an essential step towards the development of the large-scale recycling of waste refractories in steelmaking.

Coal use in Blast Furnace –CRC for coal in Sustainable Development:

The project aims to contribute towards developing new ironmaking processes such as innovative Japanese Low Temperature Blast furnace operation and European N2 free BF process (ULCOS), which are expected to provide step change reduction in emissions, and hence lead to impact reduction on sustainable development. Both these innovative approaches aim to reduce significantly the energy and fuel consumption associated with ironmaking. Under innovative Japanese blast furnace operations, fuel rates are expected to be significantly reduced by accelerating the burden reactions including that of coke at relatively lower temperatures. Accordingly, accelerating the coke reactivity including gasification, carburisation and slag reduction kinetics at lower temperatures without compromising the coke strength is critical for the success of low temperature BF process. With similar aims of step change emission reduction, European steel industries propose to operate blast furnace recycling off gases through blast under ULCOS program. This project aims to study coke reactions with gas, metal and slag under a variety of reaction environments suitable for current and emerging blast furnace process conditions. Our project will deliver improved understanding of the reactions of coke made from Australian coals and hence will protect and extend the markets of the Australian coals used in current and future ironmaking industry. On the basis of advanced understanding of factors affecting coke reactivity, coal and coke performance will be characterised suitable for innovative blast furnace operations.

Kinetics and mechanisms of high temperature liquid/solid/gas reactions occurring in metallurgical processes of industrial importance. These include new ironmaking and steelmaking technologies and advancements in conventional technologies: sustainable iron and steel making, HIsmelt, DRI/HBI, Corex, near-net shape casting; pulverised coal injection (PCI) into blast furnaces, utilisation of waste materials for ironmaking using cupola furnace; EAF steelmaking. The techniques being used are: wettability, reactivity measurements, FESEM (Field Emission Scanning Electron Microscopy), XRD (X-Ray Diffraction), Monte Carlo simulations and mathematical modelling. Significant effort is devoted to investigating the reactions involving waste and carbonaceous materials in iron and steel making and the performance of these materials in actual operation. The reactions/phenomena under study are: carbon/gas, carbon/metal, carbon/slag, extent of residual char in blast furnace off-gases, slag foaming in EAF steelmaking, refractory reactions in steelmaking. These studies have led to the development of a new methodology to characterise the proportion of carbonaceous materials, coal and coke, which relates to the performance of PCI/BF operation. This methodology is based upon the establishment of the atomic structure of coal and coke, and their differences, which make it possible to ascertain the proportion of residual char in the waste materials.

International Collaborations

  • American Iron and Steel Institute / US DOE
  • KTH, Royal Institute of Technology, Sweden
  • KUKUM, Malaysia
  • Kyoto University, Japan
  • POSCO, Korea
  • TECHINT, Italy
  • US Steel, USA
  • University of Toronto, Canada
Teaching Areas

  • Fluid flow in materials processing
  • Air pollution control in the metallurgical industries
  • Solidification and casting
  • Introduction to materials industry
Achievements

  • Key Researcher from UNSW in the CCSD CRC
  • Invited to deliver a keynote lecture at the Tenth International Ferroalloys Congress (INFACON X), Cape Town, 2004.
  • Invited to deliver a paper at the Yazawa International Symposium on Metallurgical and Materials Processing: Principles and Technologies, San Diego, 2003.
  • Invited to deliver a paper at Wolf Symposium on Liquid Steel Processing and Casting, Indianapolis, 2003.
  • Presented an invited lecture at Annual Conference on Iron and Steel Technology, Pohang, Korea, 2001
  • Presented an invited paper at the Mills Symposium - Metals, Slags, Glasses: High Temperature Properties & Phenomena, London, 2002
  • Key Researcher from UNSW in the CRC CCSD
  • Invited to present a paper and co-chair a session at the International Symposium on Metallurgical Processes for the Early Twenty-First Century, San Diego, 1994.
  • Invited to present a paper at the International Symposium on Injection in Pyrometallurgy, Melbourne, 1996.
  • Invited to serve as session co-chair at the 2nd International Congress on the Science and Technology of Ironmaking, Toronto, 1998.
  • Invited to deliver a paper at the International Seminar on Environmental and Waste Management in Iron & Steel Industries,Jamshedpur, 1999.
  • Invited to make a presentation at the Brimacombe Memorial Symposium, Vancouver, 2000.
  • Obtained research grants from ARC(Australian Research Council), CRC(Co-operative Research Centre), Industry and American Iron and Steel Institute (AISI) / US DOE totalling in excess of $ 5.0 million for a wide range of projects in 10 years at UNSW.
  • Published (or had accepted for publication) 160 technical papers in internationally reputed journals & conferences in materials processing, including 70 Journal papers.
  • Invitation to serve as a Research Advisor for a University in Malaysia, Northern Malaysia University College of Engineering (Kolej Universiti Kejuruteraan Utara Malaysia).
Prizes and Awards

  • Awarded a prestigious prize from the US Association for Iron and Steel Technology (AIST), for ongoing work in developing ways to use recycled plastics instead of coal in steelmaking. More Information.
  • Eureka Prize Award winner, 2005 for Scientific Research for demonstrating a method to use waste plastic to make steel. More Information.
  • Fresh Innovators Award winner, 2004. Press Release. Winner Profile
  • McKune Award Winner, Award for the best paper on Steelmaking, (written by an author under 40 years) presented by Iron & Steel Society (USA), 2003.
  • Josef Kapitan Award Winner, Award for the best Ironmaking Conference paper, presented by Iron & Steel Society (USA), 2003.
  • McKune Award Winner, Award for the best paper on Steelmaking, (written by an author under 40 years) presented by Iron & Steel Society (USA), 2002.
  • John Chipman Award Winner, Award for excellence and originality in a publication on the production and processing of Iron and Steel. Best paper selected by ISS(USA) from the past two years of AIME publications including the front ranking journal Metallurgical and Materials Transactions. 2000.
  • Engineering Excellence Award Winner, Institution of Engineers Australia - Sydney Division. Award for New Environmentally Compatible Iron/Steel Making Technologies in the category Engineering R&D, Training and Processes. 1998.
  • Young Leader 1999-2000, Iron & Steel Society.
  • Selected for inclusion in International Who's Who of Professionals.
  • Finalist, Outstanding Women of the Year in the workforce in a non-traditional area (less than five years in the workforce).
  • Distinguished Achievement Award, given by the University of Michigan, USA.
  • Best Paper Award in Melting Methods and Materials Division of American Foundry Society.
  • International Graduate Student Award, given by the Society for the Advancement of Material & Process Engineering (SAMPE, USA).
  • Awarded membership to the Michigan Gamma Chapter of Alpha Sigma Mu, an international materials engineering honour society.
  • Awarded membership to the Tau Beta Pi, a national engineering honour society (USA).
Professional Activities

  • Vice-Chair, Member of Board of Directors, Assoc. of Iron and Steel Technology's Australian Section
  • Member of the Board of Review of Metallurgical and Materials Transactions B
  • Fellow, Institution of Engineers Australia, CPEng
  • Member, Australian Institute of Energy, AusIMM
  • Member of Board of Directors, AIST
  • Co-Chair of International conference on "Sustainable Developments in Metal Processing" (2005)
  • Established Network of Women (NOW) at UNSW (2004)
  • Judge on the ABC TV show, "The New Inventors"
Scholarships Available

Undergraduate and postgraduate scholarships are available for candidates that meet the school's requirements, please contact us for further information.

Materials - NOW (Network of Women)

An initiative to increase proportion of women at all levels in materials science and engineering. Please contact us for further information. NOW

Recent Journal Publications

List of Publication from 2000

LIST OF REFEREED JOURNAL PUBLICATIONS

  1. Mehta, A and Sahajwalla, V (2000) Influence of Composition of Slag and Carbonaceous Materials on the Wettability at Slag/Carbon Interface During Pulverised Coal Injection in a Blast Furnace, Scan. Journal of Metallurgy, vol. 29 (No. 1), pp. 17-29.
  2. Wu, C and Sahajwalla, V (2000) Dissolution Rates of Coals and Graphite in Fe-C-S melts in Direct Ironmaking: Influence of Melt Carbon and Sulfur on Carbon Dissolution, Metallurgical and Materials Transactions B, vol. 31B, 2000, pp. 243-251.
  3. Wu, C and Sahajwalla, V (2000) Dissolution Rates of Coals and Graphite in Fe-C-S melts in Direct Ironmaking: Dependence of Carbon Dissolution Rate on Carbon Structure - Communication, Metallurgical and Materials Transactions B, vol. 31B, 2000, pp. 215-216.
  4. Sahajwalla, V and Khanna, R (2000) Dissolution Behavior of Particulate Graphite in Fe-C Melts: A Monte Carlo Simulation Study, Scan. Journal of Metallurgy, vol. 29, pp. 114-120.
  5. Gao, K, Sahajwalla, V, Sun, H, Wheatley, C and Dry, R (2000) Influence of Sulfur content and Temperature on the Carbon Boil and CO generation in Fe-C-S drops, ISIJ International, vol. 40 no. 4, pp. 301-308.
  6. Wu, C, Wiblen, R, and Sahajwalla, V. (2000) Influence of Ash on Mass Transfer and Interfacial Reaction between Natural Graphite and Liquid Iron, The Belton Memorial Symposium Proceedings, January 10-11, 2000, Sydney, pp. 409-417, and Metallurgical and Materials Transactions B, vol. 31B, 2000, pp. 1099-1104.
  7. Lu, L, Sahajwalla, V, and Harris, D. (2000) Characteristics of Chars prepared from various Pulverised Coals at different Temperatures using Drop-Tube Furnace, Energy & Fuels, vol. 14, pp. 869-876.
  8. Siddiqi, N, Bhoi, B, Paramguru, R.K, Sahajwalla, V, and Ostrovski, O. (2000) Slag/Graphite Wettability and Reaction Kinetics: Part 1: Kinetics and Mechanism of the molten FeO Reduction Reaction, Ironmaking and Steelmaking, vol. 27, no. 5, pp. 367-372.
  9. Siddiqi, N, Bhoi, B, Paramguru, R.K, Sahajwalla, V, and Ostrovski, O. (2000) Slag/Graphite Wettability and Reaction Kinetics: Part 2: Wettability influenced by Reduction Kinetics, Ironmaking and Steelmaking, vol. 27, no. 6, pp. 437-441.
  10. Sahajwalla, V and Khanna, R (2000) A Monte Carlo Simulation Study of Dissolution of Graphite in Iron-Carbon Melts, Metallurgical and Materials Transactions B, vol. 31B, 2000, pp. 1517 – 1525.
  11. Zhao, L, Baoyin, Wang, N, Sahajwalla, V, and Pehlke, R.D. (2000) The Rheological Properties and Hot Tearing Behaviour of an Al-Cu Alloy, International Journal of Cast Metals Research, vol. 13, no. 3, pp. 167-174.
  12. McKay, J, Archer, R, Sahajwalla, V, Young, D and Honeyands, T. (2000) Reoxidation of Hot Briquetted Iron in Salt Water, The Belton Memorial Symposium Proceedings, Sydney, January 10-11, 2000, pp. 351-362, and Communication, Metallurgical and Materials Transactions B, vol. 31B, 2000, pp. 1133-1135.
  13. Siddiqi, N, Bhoi, B, Paramguru, R.K, Sahajwalla, V, and Ostrovski, O. (2000) Effect of different parameters on Wettability of Graphite by CaO-SiO2-Al2O3-FeO-MgO Slag, Transactions Indian Inst. Metals, vol. 53, nos. 4-5, pp. 479-486.
  14. Lu, L, Sahajwalla, V, Kong, C, and Harris, D. (2001) Quantitative X-ray diffraction Analysis and its Application to various Coals, Carbon, vol. 39, no. 12, pp. 1821-1833.
  15. Lu, L, Sahajwalla, V, and Harris, D. (2001) Coal Char Reactivity and Structural Evolution During Combustion–Factors Influencing Blast Furnace PCI Operation, Metallurgical and Materials Transactions B, vol. 32, no. 5, pp. 811 – 820.
  16. Moon, J.P, and Sahajwalla, V. (2001) Derivation of Shrinking Core Model for Finite Cylinder, ISIJ International, vol. 41, no. 1, pp. 1 – 9.
  17. Mehta, A.S, and Sahajwalla, V. (2001) Influence of Temperature on the Wettability at the slag/carbon interface during Pulverised Coal Injection in a Blast Furnace, Sixth International Conference on Molten Slags, Fluxes and Salts, Stockholm/Helsinki, June 12 – 17, 2000. (Invited paper), and Scan. Journal of Metallurgy, vol. 30, no. 6, pp. 370-378.
  18. Sahajwalla, V, Lu, L, Harris, D, Kong, C. H, and Hart, J. (2001) Fundamental Study of Char Structure and Reactivity and its Application to Pulverised Coal Injection in Blast Furnaces, Materials Forum, vol. 25, pp. 168-180.
  19. Sahajwalla, V and Khanna, R (2002) Influence of sulfur on the solubility of graphite in Fe-C-S melts: optimisation of interaction parameters, Acta Materialia, vol. 50, no. 4, pp. 663-671.
  20. Lu, L, Kong, C, Sahajwalla, V and Harris, D (2002) Char Structural Ordering during Pyrolysis and Combustion and its Effects on Char Reactivity, Fuel, vol. 81, no. 9, pp.1215-1225.
  21. Lu, L, Sahajwalla, V, Kong, C. H, and McLean A. (2002) Chemical Structure of chars prepared under conditions prevailing in the Blast Furnace PCI Operation, ISIJ International, vol. 42, no. 8, pp. 816 – 825.
  22. Gray, J, Saha-Chaudhury, N.M and Sahajwalla, V (2002) Characterisation and corrosion of laboratory scale briquettes of reduced iron, ISIJ International, vol. 42, no. 8, pp. 826 - 833.
  23. Zhao, L and Sahajwalla, V (2003) Interfacial phenomena during wetting of graphite/alumina mixtures by liquid iron, ISIJ International, vol. 43, no. 1, pp. 1 – 6.
  24. Sahajwalla, V and Khanna, R (2003) Effect of sulfur on the dissolution behaviour of graphite in Fe-C-S melts: A Monte Carlo Simulation Study, Scan. J. Metallurgy, vol. 32, no. 1, pp. 53 – 57.
  25. Moon, J.P, and Sahajwalla, V. (2003) Kinetics model for the uniform conversion of self reducing iron oxide and carbon briquettes, ISIJ International, vol. 43, no. 8, pp. 1136-1142.
  26. Sahajwalla, V, Wu, C, Khanna, R, Saha-Chaudhury, N.M and Spink, J (2003) Kinetic Study of factors affecting In-situ reduction of silica in carbon-silica mixtures for refractories, ISIJ International, vol. 43, no. 9, pp. 1309-1315.
  27. Mehta, A.S and Sahajwalla, V (2003) Coal-char/slag Interactions during Pulverised Coal Injection in a Blast Furnace: Reaction Kinetics and Wetting Investigations, ISIJ International, vol. 43, no. 10, pp. 1512-1518.
  28. McCarthy, Sahajwalla, V, Hart, J and Saha-Chaudhury, N.M (2003) Influence of Ash on Interfacial Reactions between Coke and Liquid Iron, Proceedings of the Mills Symposium, pp. 397-406 and Metallurgical and Materials Transactions B, vol. 34B, pp. 573-580.
  29. Sun, H and Sahajwalla, V (2004) Numerical Analysis of Reactions in a Cupola Melting Furnace, ISIJ International, vol. 44, no. 1, pp. 27-36.
  30. Sahajwalla, V, Mehta, A.S and Khanna, R (2004) Influence of Chemical Compositions of Slags and Graphite on the Phenomena Occurring in the Graphite-Slag Interfacial Region, Metallurgical and Materials Transactions B, vol. 35B, pp. 75 - 83.
  31. Kapilashrami, E, Sahajwalla, V and Seetharaman, S (2004) Investigation of the wetting characteristics of liquid iron on mullite by sessile drop technique, ISIJ International, vol. 44, no. 4, pp 653-659.
  32. Kapilashrami, E, Sahajwalla, V and Seetharaman, S (2004) Slag formation during high temperature interactions between refractories containing SiO2 and iron melts with oxygen, Ironmaking and Steelmaking, vol. 31, no. 6, pp 509-513.
  33. Boominathan, R, Saha-Chaudhury, N.M, Sahajwalla, V and Doran, P.M (2004) Production of Nickel bio-ore from hyperaccumulator plant biomass: Applications in Phytomining, Biotechnology and Bioengineering, Vol. 86, No. 3.
  34. Hong, L and Sahajwalla, V (2004) Investigation of in-situ chemical reactions of Al2O3-SiC-SiO2-C refractory and its interactions with slag, ISIJ International, vol. 44, no. 5, pp. 785-789.
  35. Laé, E, Sahajwalla, V, Welch, B, Skyllas-Kazacos, M (2005) Influence of oxide dopants on the wetting of doped graphite by cryolite/alumina melts, Journal of Light Metals, vol 35,no.2, pp 199-206.
  36. Cham, S.T, Sahajwalla, V, Sakurovs, R, Sun, H and Dubikova, M (2004) Factors Influencing Carbon Dissolution From Cokes into Liquid Iron, ISIJ International, vol. 44, no.11, pp 1835-1841.
  37. Khanna, R, Sahajwalla, V and Hurt, R.H. (2005) An atomistic technique for simulating non-covalent interactions in large ensembles of high-molecular-weight polyaromatics, Carbon vol. 43, pp 67-77.
  38. Khanna, R, Sahajwalla, V, (2005) An atomistic model for the graphite-alumina/liquid iron system: Monte-Carlo simulations on carbon dissolution, Acta Materialia. vol. 53 pp 1205-1214.
  39. Gupta, S, Sahajwalla, V, Burgo, J, Chaubal, P, Youmans, T, (2005) Carbon Structure of Coke at High Temperatures and its Influence on Coke Fines in Blast Furnace Dust, Metallurgical and Materials Transactions B, vol. 36B, no. 3, pp 385-394.
  40. Hilding, T., Gupta, S, Sahajwalla, V, Bjorkman, B, and Wikstrom J (2005) Degradation behaviour of a High CSR Coke in an Experimental Blast Furnace: Effect of Carbon Structure and Alkali Reactions, ISIJ International, vol. 45, no.7, pp 1041-1050.
  41. McCarthy,F, Khanna, R, Sahajwalla, V and Simento, N (2005) Interfacial Phenomena occurring during iron/char interactions in a Blast Furnace, ISIJ International, vol. 45, no.9, pp 1261 – 1268.
  42. Perkins, G and Sahajwalla, V (2005) A mathematical model for the Chemical Reaction of a semi-infinite block of coal in underground coal gasification, Energy and Fuels, vol. 19, pp 1679 – 1692.
  43. Kang, T, W, Gupta, S, K, Saha-Chaudhury, N and Sahajwalla, V, (2005) Wetting and interfacial reaction investigations of coke/slag systems and associated liquid permeability of Blast Furnaces, ISIJ International, vol 45, no.11, pp.1526 - 1536
  44. Gray, J, Sahajwalla, V, Paramguru, R, (2005) Kinetics and Mechanism of Corrosion of Laboratory Hot Briquetted Iron, Metallurgical and Materials Transactions B, vol 36B, pp 613 – 621
  45. Moon, J and Sahajwalla, V (2006) Investigation into the role of the Boudouard reaction in self-reducing iron oxide and carbon briquettes, Metallurgical and Materials Transactions B, vol. 37B, pp. 215-221.
  46. Perkins, G and Sahajwalla, V (2006) A numerical study of the effects of operating conditions and coal properties on cavity growth in underground coal gasification, Energy & Fuels, vol. 20, pp. 596-608.
  47. Tsuey Cham, S, Sakurovs, R, Sun, Haiping and Sahajwalla, V (2006) Influence of Temperature on Carbon Dissolution of Cokes in molten Iron, Accepted for publication in ISIJ International, vol. 46, no 5, pp. 652-659.
  48. Khanna, R, Rodgers, B, McCarthy, F and Sahajwalla, V, (2006) Dissolution of Carbon from Alumina-Carbon mixtures into liquid Iron: Influence of Carbonaceous Materials, Metallurgical and Materials Transactions B, vol. 37B, pp. 623-632.
  49. Gupta, S, Al-Omari, Y, Sahajwalla, V and French, D (2006) Influence of carbon structure and mineral association of coals on their combustion characteristics for pulverized coal injection (PCI) application, Metallurgical and Materials Transactions B, vol. 37B, pp. 457-473.
  50. Grigore, M, Sakurovs, R, French, D and Sahajwalla, V (2006) Influence of mineral matter on coke reactivity with carbon dioxide, ISIJ International, vol. 46, no. 4, pp. 503-512.
  51. Gupta, S, Sahajwalla, V and Wood, J (2006) Simultaneous Combustion of Waste Plastics with Coal for PCI Application, Energy & Fuels, vol 20, pp. 2557 - 2663
  52. Kawakami, M, Kanba, H, Sato, K, Takenaka, T, Gupta, S, Chandratilleke, R, Sahajwalla, V (2006) Characterization of Thermal Annealing Effects on the Evolution of Coke Carbon Structure using Raman Spectroscopy and X-ray Diffraction, ISIJ International, vol. 46, no 8, pp. 1165-1170.
  53. Yunes, P, Saha-Chaudhury, N, Bush, R, and Sahajwalla, V (2006) Dynamic wetting of graphite and SiC by ferrosilicon alloys and silicon at 1550℃, ISIJ International, Vol.46, No.11, pp. 1570 – 1576
  54. Sahajwalla, V, Hong, L, Saha-Chaudhury, N (2006), Waste Plastics – A source for EAF Steelmaking, Iron and Steel Technology, vol 3(4), pp. 91 – 96
  55. Sahajwalla, V, Rahman, M, Hong, L, Saha-Chaudhury, N (2006), Influence of Carbonaceous Materials on Slag Foaming Behavior During EAF Steelmaking, Iron and Steel Technology, vol 3(2), pp. 54 – 63
LIST OF REFEREED CONFERENCE OR SYMPOSIUM PUBLICATIONS

  1. Lu, L, Sahajwalla, V and Harris, D. (2000) Coal Char Reactivity and Structure – Effects Affecting PCI Operation in Blast Furnace, Proceedings of the 59th Ironmaking Conference, Pittsburgh, March 26-29, 2000, pp. 295-304.
  2. Sahajwalla, V, Kong, C.H, Chaubal, P.C, and Valia, H.S. (2000) Determination of Proportions of Coal Char and Coke Fines in the Top Off Gas Dust Samples from a Blast Furnace, Proceedings of the 59th Ironmaking Conference, Pittsburgh, March 26-29, 2000, pp. 305-311.
  3. Kang, T, Sahajwalla, V, and Shin, S. (2000) Investigation of Iron oxide Quality for COREX Plant, Proceedings of the 59th Ironmaking Conference, Pittsburgh, March 26-29, 2000, pp. 357-363.
  4. Shin, S, Sahajwalla, V, and Kang, T. (2000) Coal Char Gasification during the COREX Process, Proceedings of the 59th Ironmaking Conference, Pittsburgh, March 26-29, 2000, pp. 351-356.
  5. Kang, T, Sahajwalla, V, and Shin, S. (2000) Properties of Commercial Iron Oxides for COREX Process, International Congress on Mineral Processing and Extractive Metallurgy MINPREX 2000, September 11 – 13, 2000, pp. 527 – 532.
  6. Shin, S, Sahajwalla, V, and Kang, T, Lu, L (2000) Properties and Reactivity of Coal Chars for COREX Process, International Congress on Mineral Processing and Extractive Metallurgy MINPREX 2000, September 11 – 13, 2000, pp. 587 – 596.
  7. Wiblen, R, and Sahajwalla, V (2001) Coals for Direct Iron Smelting Processes: Significance of Process Parameters, Proceedings of the 60th Ironmaking Conference, Baltimore, March 25-28, 2001, pp.1005 – 1013.
  8. Gray, J, Sahajwalla, V, and Honeyands (2001) Reoxidation of Laboratory Hot Briquetted Iron, Proceedings of the 60th Ironmaking Conference, Baltimore, March 25-28, 2001, pp. 993 – 1003.
  9. Sahajwalla, V, Kong, C, Hyle, F.W, Kmiec, A, and Morey, J (2001) Investigation of Combustion behaviour of a PCI Coal and Unburnt Char Carryover in a US Steel Blast Furnace, Proceedings of the 60th Ironmaking Conference, Baltimore, March 25-28, 2001, pp. 451 – 458.
  10. Lu, L, Sahajwalla, V, Kong, C, Harris, D and McLean, A. (2002) Novel Equations to establish influence of char structure on reactivity during PCI in a blast furnace, Proceedings of the 61st Ironmaking Conference, Nashville, March 10-13, 2002, pp. 277-292.
  11. McCarthy, F, Sahajwalla, V, and Hart. J, (2002) Metal/char interactions during Pulverised Coal Injection in a Blast Furnace, Proceedings of the 61st Ironmaking Conference, Nashville, March 10-13, 2002, pp.313-324.
  12. Wu, C, Sahajwalla, V, and Spink, J (2002) Kinetic Study of In-situ SiO2 Reduction in Carbon-bearing Refractories, Proceedings of the 85th Steelmaking Conference, Nashville, March 10-13, 2002, pp. 387 - 398.
  13. Zhao, L, Sahajwalla, V, Spink, J and Matthews, J (2002) Interfacial Phenomena During Wetting of Graphite/Alumina and Graphite/Magnesia Refractories by Liquid Steel, Proceedings of the 60th Electric Furnace Steelmaking Conference, San Antonio, November 10-13, 2002, pp. 755-764.
  14. Sahajwalla, V, McCarthy, F, Cham, S. T, Hart, J, Sakurovs and Saha-Chaudhury, N (2002) Influence of Carbonaceous Materials on Carburisation of Liquid Iron, Proceedings of the International Blast Furnace Lower Zone Symposium, Wollongong, Australia, November 25-27, 2002.
  15. Sahajwalla, V, and Khanna, R (2003) Fundamental investigation of Basic Mechanisms of Carbon Dissolution in Molten Iron, Yazawa International Symposium Proceedings, vol. 1, San Diego, March 2-5, 2003, pp. 825 – 840.
  16. Sahajwalla, V, Khanna, R, and Spink, J (2003) Interfacial Phenomena During Interactions of Graphite/Alumina Refractories with Liquid Steel, Proceedings of the 86th Steelmaking Conference, Indianapolis, April 27-30, 2003, pp. 653 - 654.
  17. V. Sahajwalla, S K Gupta, Y. Al-Omari, N. Saha-Chaudhury, F. Rorick, G. Hegedus, P. Chaubal, J. Burgo, M. Best and F. Hyle (2003), Combustion Characteristics of Pulverized Coals and Char Released in Blast Furnace Off-Gas, Proceedings of the 62nd Ironmaking Conference, Indianapolis, April 27-30, 2003, pp 775 – 785.
  18. Gupta, S, K, Sahajwalla, V, Al-Omari, Y, Saha-Chaudhury, N, Rorick, F, Hegedus, G, Chaubal, P, Burgo, J, Best, M, and Hyle, F (2003) Atomic Structure of Coke Fines in Blast-Furnace Dust and Their Origin in Operating Blast Furnaces, Proceedings of the 62nd Ironmaking Conference, Indianapolis, April 27-30, 2003, pp 841 – 853.
  19. Sahajwalla, V, Dubikova, M and Khanna, R (2004) Reductant Characterisation and Selection – Implications for Ferroalloys Processing, Proceedings of the Tenth International Ferroalloys Congress (INFACON X), Cape Town, South Africa, February 1-4, 2004, pp. 351 - 362
  20. Gupta, S.K, Sahajwalla, V, Saha-Chaudhury, N, Burgo, J, Chaubal, P and Youmans, T (2004) Influence of Coke properties and Reactivity on coke fines behaviour in Blast Furnace and their emissions in off-gas dust, Proceedings of Iron and Steel Technology conference, Nashville, Tennessee, USA, Sept. 15 – 17, 2004, pp. 155-167
  21. Sahajwalla, V, Hilding, T, von Oelreich, A, Gupta, S.K, Björkman, B, Wikström, J-V, Fredriksson,P and Seetharaman, S (2004) Structure and Alkali content of Coke in an experimental Blast Furnace and their gasification reaction, Proceedings of Iron and Steel Technology conference, Nashville, Tennessee, USA, Sept. 15 – 17,2004, pp. 491 – 500
  22. Hilding. T, Kazuberns, K, Gupta, S, Sahajwalla,V, Sakurovs, R, Bjorkman and Wikstrom, J (2005) Effect of Temperature on coke properties and CO2 Reactivity under laboratory conditions and in an experimental Blast Furnace, Proceedings of Iron and Steel Technology conference, Charlotte, NC, USA, May 9 - 12, 2005, vol 1, pp. 497 – 505
  23. Rahman. M, Sahajwall. V, Khanna. R, Saha-Chaudhury, N, Knights, D, O’Kane, P, (2006) Fundamental Understanding of Carbonaceous Material’s Influence on Slag Foaming Behavior during EAF Steelmaking, Proceedings of Iron and Steel Technology conference, Cleveland, Ohio, USA, May 1 - 4, 2006, vol 1, pp. 491 – 497.
  24. Sahajwalla,V, Khanna. R, Rahman.M, Huang. Z, Tanaka. E, Saha-Chaudhury, N, Knights. D and O’Kane. P (2006) Recycling of Waste Plastics for Slag Foaming in EAF Steelmaking, Proceedings of Iron and Steel Technology conference, Cleveland, Ohio, USA, May 1 - 4, 2006, vol 1, pp. 547 – 553.
  25. Gupta, S., Dubikova, M., Sahajwalla, V., Best, M., Chaubal, P. and Youmans, T. (2006), Mineral phase transformations of metallurgical cokes and their implications, AISTech 2006 Proceedings of the Iron & Steel Technology Conference, Cleveland, Ohio, USA, May 1- 4, 2006, pp. 19-30
  26. Koshy, P., Gupta, S., Sahajwalla, V. and Edwards, P. (2006), “Wetting behaviour of high alumina monolithic by non-ferrous metals: Role of non-wetting agents”, Materials Science & Technology Symposium, 2006, Cincinnati, OH, USA Oct. 15–19, pp. 55 - 66
University Responsibilities

  • On the Promotion Committee - Associate Professor
  • Key researcher - UNSW in the CRC CCSD
  • School's Coordinator for Year 1 and Year 2
  • Served on the Working Party on Undergraduate
  • Course Structure for the Faculty of Science and Technology
  • On the School's Recruitment Committee
  • On the School's Scholarship Committee
  • Participate in the Co-op Student Interviews
  • Participate in School's Open House/Courses and Careers activities
Supervisor of the Following

Strong research group of 22, comprising 2 postdoctoral level positions, 14 PhD/Masters by research students, 1 coursework Masters students and 2 Honours students, a technical officer, research engineer and 2 visiting researchers. A further 10 students have completed their doctorates and 7 their Masters; all have found good positions in industry, universities or research organisations.

  
 


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Page last updated: 4th September, 2007