E10 / 447
+61 (0)2 9385 5589
+61 (0)2 9385 4292
- Associate Professor, School of Materials Science and Engineering, UNSW 2011- Current
- Senior Research Fellow, School of Materials Science and Engineering, UNSW 2007-2010
- Senior Research Associate, School of Materials Science and Engineering, UNSW 2005-2007
- Research Associate, School of Materials Science and Engineering, UNSW 1997-2005
- Research Associate, School of Chemistry, Sydney University, 1996-1997
- Research Fellow, Research School of Chemistry, ANU Canberra, 1986-1988; 1991-1992.
- Visiting Researcher, Nuclear Research Centre, Juelich, Germany, 1981-1982
- Senior Scientific Officer, Deptt. Of Atomic Energy, Kalpakkam, India, 1973-1991.
I have extensive research experience (both experimental and theoretical) in the fields of high temperature metallurgical processes, atomistic computer simulations, theoretical modeling, and high resolution x-ray diffraction. In addition to a range of studies on various aspects of materials science, I have investigated the structure of point defects in irradiated copper at 4°K (IFF, Jülich, Germany); diffuse x-ray scattering from point defects; orientational disorder in molecular crystals; phase diagram studies on high temperature superconductors and super-ionic conductors (ANU, Canberra); computer simulations on interfacial phenomena (USyd, Sydney). Since 1997, I have brought my expertise to the field of process metallurgy and have developed a novel atomistic approach towards developing a fundamental understanding of high temperature processes in iron and steelmaking industries.
At UNSW, I have made major contributions in the field of carbon materials, especially on the structural characterisation of disordered forms of carbons; carburization of molten steel; role of carbonaceous materials in slag foaming; atomistic modelling of wettability in alumina-carbon refractories; refractory degradation through carbon depletion; low temperature carbothermic reduction of alumina; chemical reactions in mixed oxides and environmentally sustainable recovery of resources from electronic waste etc. I have also established a direct correlation between the atomistic structural features of metallurgical coke and operating temperatures in different regions of experimental blast furnace.
I have published 9 book chapters, 101 journal and 24 international conference papers. I have developed extensive collaborations with a number of research institutes worldwide including Royal Institute of Technology (KTH), Stockholm; Brown University, Providence, USA, University of Science and Technology, Beijing, China; Indian Institute of Technology, New Delhi, IIT Roorkee and IIM Bhubaneswar, India.
Honours, Awards and Memberships:
- Frank B. McKune award in 2003 for the best paper in steelmaking practice by the Iron and Steel Society, USA.
- Member, Iron and Steel Society, USA.
- Khanna R and Sahajwalla V (2013) “Atomistic simulations of properties and phenomena at high temperatures”, Metallurgical Treatise, Vol. I, Elsevier, ed. S. Seetharaman, A. Mclean, R. Gutherie and S. Sridhar, pp. 245-351.
- Khanna R, Ikram-ul Haq M, Wang Y, S. Seetharaman S and Sahajwalla V (2011) “Chemical interactions of Alumina-carbon refractories with molten steel at 1550°C: Implications for refractory degradation and steel quality”, Metallurgical and Materials Transactions B, Vol. 42(11), pp. 677-684.
- Cayumil R, Khanna R, Ikram-Ul-Haq M, Rajarao R, Hill A and Sahajwalla V (2014) “Generation of Copper Rich Metallic Phases from Waste Printed Circuit Boards”, Waste Management Vol. 34(10), pp. 1783-1792.
- Khanna R, Kongkarat S, Seetharaman S, Sahajwalla V (2012), “Carbothermic reduction of alumina at 1823 K in the presence of molten steel: a sessile drop investigation”, ISIJ International, Vol. 52(6), pp. 992-999.
- Khanna R, Sahajwalla V (2005), “An atomistic model for the alumina-carbon/liquid iron system: Monte-Carlo simulations on carbon dissolution”, Acta Materialia. Vol. 53 pp 1205-1214. (Impact Factor: 4.869)
- Khanna R, Sahajwalla V, Simento N, Seetharaman S (2010), “Atomistic Monte Carlo simulations on the influence of sulphur during high temperature decarburization of molten iron-carbon alloys”, Acta Materiala, Vol. 58(6), pp. 2225-2236. (Impact Factor: 4.869)
- Sahajwalla V, Khanna R (2000), “A Monte Carlo simulation study of dissolution of graphite in iron-carbon melts”, Metallurgical and Materials Transactions B, Vol. 31B, pp. 1517–25. (Times cited: 22).
- Khanna R, Tyagi AK, Nandedkar RV and Rao GVN (1986), “Investigation of Solid Argon Bubbles in Nickel by Glancing Angle X-Ray Diffraction”, Scripta Materiala, Vol. 20 (2) pp. 181-184. (Times cited: 16).
- Sahajwalla V, Khanna R (2002), “Influence of sulfur on the solubility of graphite in Fe-C-S melts: Optimisation of interaction parameters”, Acta Materiala, Vol. 50(4), pp. 663-671. (Impact Factor: 4.869).
- Khanna R, Sahajwalla V, 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. (Impact Factor: 6.89)