Items where Author is "Kumar, Rakesh"

Kumar, Rakesh and Alex, T C (2023) Phase stability and role of mechanical activation in the chemical beneficiation of red mud. Journal of Thermal Analysis and Calorimetry, 148 . pp. 9813-9827.

Kumar, Rakesh (2023) In Retrospect: Some Peculiarities Observed in the Mechanical Activation of Ground-Granulated Blast Furnace Slag and Fly Ash. Transactions of the Indian Institute of Metals .

Singla, Rashmi and Alex, T C and Kumar, Rakesh (2020) On mechanical activation of glauconite: Physicochemical changes, alterations in cation exchange capacity and mechanisms. Powder Technology, 360 (IF-4.142). pp. 337-351.

Alex, T C and Kailath, A J and Kumar, Rakesh (2020) Al-Monohydrate (Boehmite) to Al-Trihydrate(Bayerite/Gibbsite) Transformation During High-Energy Milling. Metallurgical and Materials Transactions B, 51 (IF-1.874). pp. 443-451.

Kumar, Rakesh and Kumar, Sanjay and Alex, T C and Singla, Rashmi (2019) Mapping of calorimetric response for the geopolymerisation of mechanically activated fly ash. Journal of Thermal Analysis and Calorimetry, 136(3) . pp. 1117-1133.

Kumar, Rakesh and Kumar, Sanjay and Alex, T C and Singla, Rashmi (2018) Mapping of Calorimetric Response for the Geopolymerisation of Mechanically Activated Fly ash. Journal of Thermal Analysis and Calorimetry (IF-2.209). pp. 1-17.

Alex, T C and Kumar, Rakesh (2017) Surface and bulk activation of a siliceous bauxite during attrition milling. International Journal of Mineral Processing, 160 (IF-1.518). pp. 32-38.

Kumar, Rakesh (2017) Characterisation of Minerals and Ores: On the Complementary Nature of Select Techniques and Beyond. Transactions of the Indian Institute of Metals, 70(2) (IF- 0.533). pp. 253-277.

Kumar, P and Kumar, Rakesh and Rai, B and Subramanian, S and Srikanth, S (2017) Preface. Transactions of the Indian Institute of Metals, 70(2) (IF-0.533). pp. 251-252.

Tammishetti, V and Rai, B and Ravi Kumar, B and Kumar, Rakesh and Pradip, (2016) Quantitative Estimation of Mineral Phases from Chemical Assays and Powder X-Ray Diffraction Rietveld Analysis: A Case Study on Selective Flocculation of Iron Ore Slimes. Transaction of the Indian Institute Metals, 69(1) (IF-0.533). pp. 125-133.

Alex, T C and Kumar, Rakesh and Roy, S K and Mehrotra, S P (2016) Mechanical Activation of Al-oxyhydroxide Minerals–A Review. Mineral Processing and Extractive Metallurgy Review, 37(1) (IF-1.219). pp. 1-26.

Mehrotra, S P and Alex, T C and greifzu, G and Kumar, Rakesh (2016) Mechanical Activation of Gibbsite and Boehmite: New Findings and their Implications. Transactions of the indian institute of metals, 69(1) (IF-0.533). pp. 51-59.

Pradip, and Beena, R and Kumar, Rakesh and Srikanth, S (2016) Preface. Transactions of the indian institute of metals, 68(1) (IF-0.533). pp. 1-2.

Srikanth, S and Laxmi Devi, V and Kumar, Rakesh (2016) Unfolding the complexities of mechanical activation assisted alkali leaching of zircon (ZrSiO4). Hydrometallurgy, 165(1) (IF-2.605). pp. 125-136.

Mishra, Suman K and Kumar, Rakesh and Soni, and Sreemany, M and Pathak, L C (2015) Ultrathin to Nano Thickness TiN Coatings: Processing, Structural, Mechanical Behavior. Journal of Materials Engineering and Performance, 24(12) (IF-). pp. 5013-5021.

Kumar, Rakesh and Alex, T C (2015) Elucidation of the Nature of Structural Heterogeneity During Alkali Leaching of Non-activated and Mechanically Activated Boehmite (gamma-AlOOH). Metallurgical and Materials Transactions B- Process Metallurgy and Materials Processing Science, 46(4) . pp. 1684-1701.

Mucsi, Gabor and Kumar, Sanjay and Csoke, Barnabás and Kumar, Rakesh and Molnár, Zoltán and Rácz, Ádám and Mádai , Ferenc and Debreczeni , Ákos (2015) Control of geopolymer properties by grinding of land filled fly ash. International Journal of Mineral Processing, 143 (IF-1.31). pp. 50-58.

Sau, D C and Banerjee, A and Kumar, Manoj and Kumar, Rakesh (2015) Experimental investigation for conversion of hematite to magnetite with high ash Jhama Coal. Journal of Metallurgy and Materials Science, 57(2) . pp. 83-91.

Srikanth, S and laxmi, V Devi and Kumar, Rakesh (2015) Unfolding the complexities of mechanical activation assisted alkali leaching of zircon (ZrSiO4). Hydrometallurgy, Available online 10 December 2015 . (In Press)

Nath, S K and Kumar, Sanjay and Kumar, Rakesh (2014) Effect of mechanical activation on cordierite synthesis through solid-state sintering method. Bulletin of Material Science, 37(6) (IF-0.870). pp. 1221-1226.

Kumar, Sanjay and Kumar, Rakesh (2014) Geopolymer : Cement for low carbon economy. The Indian Concrete Journal, 88(7) . pp. 29-37.

Shakhtshneider, T P and Myz, S A and Nizovskii, A L and Kalinkin, A V and Boldyrev, V V and Alex, T C and Kumar, Rakesh (2014) Effect of the Selected Inorganic Carriers on the Properties of Mechanocomposites with Drugs. Doklady Chemistry, 456(2) (IF-0.351). pp. 98-102.

Alex, T C and Kumar, Rakesh and Roy, S K and Mehrotra, S P (2014) Towards ambient pressure leaching of boehmite through mechanical activation. Hydrometallurgy, 144 (IF-2.224). pp. 99-106.

Alex, T C and Kumar, Rakesh and Roy, S K and Mehrotra, S P (2014) Mechanically induced reactivity of gibbsite: Part 1. Planetary milling. Powder Technology, 264 (IF-2.269). pp. 105-113.

Alex, T C and Kumar, Rakesh and Roy, S K and Mehrotra, S P (2014) Mechanically induced reactivity of gibbsite: Part 2. Attrition milling. Powder Technology, 264 (IF-2.269). pp. 229-235.

Balaz, Peter and Achimovičová, M and Baláž, Matej and Billik, Peter and Cherkezova-Zheleva, Zara and Criado, José Manuel and Delogu, Francesco and Dutková, Erika and Gaffet, Eric and José Gotor, Francisco and Kumar, Rakesh and Mitov, Ivan and Rojac, Tadej and Senna, Mamoru and Streletskii, Andrey and Wieczorek-Ciurowa, Krystyna (2013) Hallmarks of mechanochemistry: from nanoparticles to technology. Chemical Society Reviews, First published on the web 04 Apr 2013 (IF-28.76). pp. 1-67.

Alex, T C and Kumar, Rakesh and Roy, S K and Mehrotra, S P (2013) High Energy Milling of Boehmite: Changes in Particulate Characteristics. In: Proceedings of the XIII International Seminar on Mineral Processing Technology (MPT-2013), 10-12 December, 2013, IMMT, Bhubaneswar.

Alex, T C and Kumar, Rakesh and Roy, S K and Mehrotra, S P (2013) Leaching behaviour of high surface area synthetic boehmite in NaOH solution. Hydrometallurgy, 137 (IF-2.169). pp. 23-32.

Kumar, Sanjay and Sahoo, D P and Nath, S K and Alex, T C and Kumar, Rakesh (2012) From Grey Waste to Green Geopolymer. Science and Culture, 78(11-12) . pp. 511-516.

Kalinkin, A M and Kumar, Sanjay and Gurevich , B I and Alex, T C and Kalinkina, E V and Tyukavkina, W and Kalinnokov, V T and Kumar, Rakesh (2012) Geopolymerization behavior of Cu-Ni slag mechanically activated in air and in CO2 atmosphere. International Journal of Mineral Processing, 112 . pp. 101-106.

Alex, T C and Kumar, Rakesh and Roy, S K and Mehrotra, S P (2012) Mechanical Activation of Al-Oxyhydroxide Minerals – Physicochemical Changes, Reactivity and Relevance to Bayer Process. In: LIGHT METALS 2012. TMS (The Minerals, Metals and Materials Society), pp. 15-19. ISBN 978-1-11829-139-9

Shakhtshneider, T P and Myz, S A and Dyakonova, M A and Boldyrev, V V and Nizovskii, A L and Kalinkin, A V and Kumar, Rakesh (2011) Mechanochemical Preparation of Organic-Inorganic Hybrid Materials of Drugs with Inorganic Oxides. Acta Physica Plolonica, 120 (2). pp. 272-278.

Alex, T C and Sasikumar, C and Kailath, A J and Kumar, Rakesh and Roy, S K and Mehrotra, S P (2011) Analysis of Mechanically Induced Reactivity of Boehmite Using Kinetics of Boehmite to gamma-Al2O3 Transformation. Metallurgical and Materials Transactions B-Process Metallurgy and Materials Processing Science, 42 (3). pp. 592-603.

Alex, T C and Kumar, Rakesh and Roy, S K and Mehrotra, S P (2011) Anomalous reduction in surface area during mechanical activation of boehmite synthesized by thermal decomposition of gibbsite. Powder Technology, 208 (1). pp. 128-136.

Kumar, Sanjay and Kumar, Rakesh (2011) Mechanical activation of fly ash: Effect on reaction, structure and properties of resulting geopolymer. Ceramics International, 37 (2). pp. 533-541.

Mehta, K D and Kumar, Rakesh and Pandey, B D and Mehrotra, S P (2011) Bio-dissolution of metals from activated nodules of Indian Ocean. In: VI International Conference on Mechanochemistry and Mechanical Alloying (INCOME 2008), 1-4 December 2008, NML Jamshedpur, India.

Kumar, Sanjay and Kumar, Rakesh and Mehrotra, S P (2011) Geopolymers, fly ash reactivity and mechanical activation. In: VI International Conference on Mechanochemistry and Mechanical Alloying (INCOME 2008), 1-4 December 2008, NML Jamshedpur, India.

Jha, Manis K and Choubey, Pankaj K and Kumari, Archana and Kumar, Rakesh and Kumar, Vinay and Lee, Jae-chun (2011) Leaching of lead from solder material used in electrical and electronic equipment. In: Proceedings of second symposium on Recycling of waste II, 2011, Recycling of waste II.

Kumar, Rakesh and Kumar, Sanjay and Mehrotra, S P (2011) Mechanical activation in blended cement processing. In: VI International Conference on Mechanochemistry and Mechanical Alloying (INCOME 2008), 1-4 December 2008, NML Jamshedpur, India.

Sasikumar, C and Srikanth, S and Kumar, Rakesh and Alex, T C and Mehrotra, S P (2011) Where does the energy go in high energy milling? In: VI International Conference on Mechanochemistry and Mechanical Alloying (INCOME 2008), 1-4 December 2008, NML Jamshedpur, India.

Jha, Manis K and Shivendra, and Kumar, Vinay and Pandey, B D and Kumar, Rakesh and Lee, Jae-chun (2010) Leaching studies for the recovery of metals from the waste printed circuit boards (PCBs). In: Proceedings of TMS-2010, Feb 2010.

Kumar, Sanjay and Kumar, Rakesh and Mehrotra, S P (2010) Influence of granulated blast furnace slag on the reaction, structure and properties of fly ash based geopolymer. Journal of Materials Science, 45 (3). pp. 607-615.

Mehta, K D and Das, Chitrangada and Kumar, Rakesh and Pandey, B D and Mehrotra, S P (2010) Effect of mechano-chemical activation on bioleaching of Indian Ocean nodules by a fungus. Minerals Engineering, 23 . pp. 1207-1212.

Alex, T C and Kumar, Rakesh and Kailath, A J and Roy, S K and Mehrotra, S P (2010) Physicochemical changes during mechanical activation of boehmite. In: Proceedings of the XI International Seminar on Mineral Processing Technology (MPT-2010), Dec 2010, NML Jamshedpur, India.

Kumar, Rakesh and Kumar, Sanjay and Alex, T C and Srikanth, S and Mehrotra, S P (2010) Process innovations using mechanical activation of minerals and wastes. In: Experimental and theoretical studies in modern mechanochemistry. Transworld Research Network, Trivandrum, pp. 255-272. ISBN 978-81-7895-454-7

Kumar, Sanjay and Kumar, Rakesh (2010) Tailoring geopolymer properties through mechanical activation of fly ash. In: 2nd International conference on sustainable construction materials and technologies, 28-30 June, 2010, Ancona, Italy.

Alex, T C and Kumar, Rakesh and Kailath, A J and Roy, S K and Mehrotra, S P (2009) Mechanically Induced Reactivity in Boehmite (y-AlOOH). In: 63rd Annual Technical Meeting of The Indian Institute of Metals , Nov. 16-17, 2009, IIM, Kharagpur, Kolkata.

Alex, T C and Kumar, Rakesh and Roy, S K and Mehrotra, S P (2009) Mechanical Activation of Boehmite produced by Thermal Transformation of Gibbsite. In: The fourth Asian Particle Technology Symposium (APT 2009), September 14-16, 2009, Hotel Ashok, Delhi.

Kumar, Rakesh and Kumar, Sanjay and Alex, T C and Mehrotra, S P (2009) Mechanochemistry in the Utilisation/Minimisation of Wastes from Metallurgical and Allied Industries. In: The Fourth Asian Particle Technology Symposium (APT 2009), September 14-16, 2009, Hotel Ashok, Delhi.

Srikanth, S and Kumar, Rakesh and Devi, L M and Kumar, Satender and Hait, Jhumki and Khan, Z H (2009) Insitu activation leaching and exsitu activation-pressure leaching of zircon in acid and alkaline solutions (OLP-0095). Exploratory (OLP). CSIR-NML, Jamshedpur. (Submitted)

Kumar, Sanjay and Kumar, Rakesh and Bandopadhyay, A and Alex, T C and Ravi Kumar, B and Das, Swapan K and Mehrotra, S P (2008) Mechanical activation of granulated blast furnace slag and its effect on the properties and structure of portland slag cement. Cement and Concrete Composites, 30 (8). pp. 679-685.

US2006000491916 (2008) Process for the production of Portland slag cement using granulated blast furnace slag. US7410537.

Kumar , Sanjay and Alex, T C and Kumar, Rakesh (2008) Mechanical Activation of Solids in Extractive Metallurgy. In: Proceedings on Extraction of Nonferrous Metals and their Recycling - A Training Programme, Feb. 27-29th, 2008, NML, Jamshedpur.

Mishra, D and Kumar, Rakesh and Sahu, K K and Agrawal, A (2008) Development of Process for Production of Chemical Manganese Dioxide (OLP-0055). Exploratory (OLP). NML, Jamshedpur. (Submitted)

Alex, T C and Kumar, Rakesh and Roy, S K and Mehrotra, S P (2008) Stirred bead mill grinding of gibbsite: Surface and morphological changes. Advanced Powder Technology, 19 (5). pp. 483-491.

Kumar, Rakesh and Kumar, Sanjay and Mehrotra, S P (2007) Towards sustainable solutions for fly ash through mechanical activation. Resources, Conservation and Recycling, 52 (2). pp. 157-179.

Kumar, Sanjay and Kumar, Rakesh and Alex, T C and Bandopadhyay, A and Mehrotra, S P (2007) Influence of reactivity of fly ash on geopolymerisation. Advances in Applied Ceramics, 106 (3). pp. 120-127.

Alex, T C and Kumar, Rakesh and Upadhyay, A K and Mishra, T and Mahato, B and Mehrotra, S P (2007) Role of Mineralogy and Origin of Mechanically Activated (Indian) bauxite in Bayer Process. Exploratory (OLP). CSIR-NML, Jamshedpur. (Submitted)

Kumar, Rakesh and Kumar, Sanjay and Das, Avimanyu and Mishra, T K and Cholavandan, V and Mehrotra, S P (2007) Studies on Reactivity of Classified and Mechanically activated fly Ash. Exploratory (OLP). CSIR-NML, Jamshedpur. (Submitted)

Kumar, Sanjay and Kumar, Rakesh and Bandopadhyay, A and Mehrotra, S P (2007) Novel geopolymeric building materials through synergistic utilisation of industrial waste. In: International conference alkali activated materials: research, production and utilization, 2007, Prague.

Alex, T C and Kumar, Rakesh and Roy, S K and Mehrotra, S P (2007) Stirred bead mill grinding of gibbsite:surface and morphological changes. In: The Third Asian Particle Technology Symposium Small Particle Technology, September 3-5, 2007, Beijing, China.

Kumar, Rakesh and Alex, T C and Mishra, C R and Roy, S K and Mehrotra, S P (2007) Towards Sustainable Alumina Production. In: National Seminar on Environmental Concern and Remedies in Alumina Industry, January 27-28, 2007, NML, Jamshedpur.

Kumar, Sanjay and Bandopadhyay, A and Alex, T C and Kumar, Rakesh (2006) Influence of mechanical activation on the synthesis and hydraulic activity of calcium dialuminate. Ceramics International, 32 (5). pp. 555-560.

Kumar, Sanjay and Kumar, Rakesh and Bandopadhyay, A (2006) Innovative methodologies for the utilisation of wastes from metallurgical and allied industries. Resources Conservation and Recycling, 48 (4). pp. 301-314.

Mehrotra, S P and Kumar, Rakesh and Kumar, Sanjay (2006) Mechanical activation of solids in processing of minerals and wastes. In: Proceedings of the XXIII International Mineral Processing Congress, 3-8 Sept. 2006, Istanbul, Turkey.

Narasimhan, B R V and Rao, D S and Kumar, Rakesh and Alex, T C and Ravi Kumar, B and Das, Swapan K and Srikanth, S and Mehrotra, S P (2006) Mechanochemical Activation of Zircon Sands - A Low Temperature route for Liberation of Zirconia (OLP-0014). Exploratory (OLP). CSIR-NML, Jamshedpur. (Submitted)

Kumar, Rakesh and Kumar, Sanjay and Badjena, S and Mehrotra, S P (2005) Hydration of mechanically activated granulated blast furnace slag. Metallurgical and Materials Transactions B, 36 (6). pp. 873-883.

Kumar, Rakesh and Alex, T C and Khan, Z H and Mahapatra, S P and Mehrotra, S P (2005) Mechanical activation of bauxite - €”potential and prospects in the Bayer process. In: LIGHT METALS 2005. TMS (The Minerals, Metals and Materials Society), pp. 77-9. ISBN 0873395808, 9780873395809

Kumar, Sanjay and Bandopadhyay, A and Rajnikanth, V and Alex, T C and Kumar , Rakesh (2004) Improved processing of blended slag cement through mechanical activation. Journal of Materials Science, 39 (10). pp. 3449-3452.

Kumar, Rakesh and Alex, T C and Jha, Manis K and Khan, Z H and Mahaptra, S P and Mishra, C R (2004) Mechanochemistry and the Bayer process of alumina production. In: LIGHT METALS 2004. TMS (The Minerals, Metals and Materials Society), pp. 31-34. ISBN 978-0-470-95294-8

Kumar , Rakesh and Bandopadhyay, A (2002) Clean Technologies in Nonferrous Metals Recycling. In: Clean Technologies for Metallurgical Industries (EWM-2002), 24-25 January, 2002, National Metallurgical Laboratory (CSIR), Jamshedpur.

Kumar, Rakesh (1999) Anomalous dependence of leachability on surface area during sulphuric acid leaching of nickel- and copper-doped birnessites. Hydrometallurgy, 52 (1). pp. 71-79.

Kumar, Rakesh and Das, Samar (1998) Physicochemical and structural factors in the sulfuric acid leaching of nickel- and copper-bearing synthetic birnessites. Metallurgical and Materials Transactions B, 29 (3). pp. 527-540.

Kumar, Rakesh and Ray, R K (1998) Modeling Microstructural Heterogeneity in Materials by Using Q-Mode Factor Analysis. Materials Characterization, 40 (1). pp. 7-13.

Kumar, Rakesh and Srivastava, J P and Premchand, (1998) Utilization of iron values of red mud for metallurgical applications. In: Environmental and Waste Management (ISSN : 0971-9407). National Metallurgical Laboratory, Jamshedpur, India, Jamshedpur, India, pp. 108-119.

Kumar, Rakesh and Das, S K and Ray, R K and Biswas, A K (1994) A SEM backscattered electron mode study of microstructural features of ferromanganese nodules from central indian-ocean basin. Transactions of the indian institute of metals, 47 (5). pp. 273-285.

Kumar, Rakesh (1994) Leaching characteristics of disordered birnessite and goethite doped with ni, co and cu in sorption mode. Materials Transacrions JIM, 35 (1). pp. 27-34.

Kumar, Rakesh and Sanyal, D (1994) Plasma Technology in Ferroalloy Processing. In: 4th Refresher Course on Ferro Alloys, January 12-14, 1994, Jamedepur.

Kumar, Rakesh and Das, S and Ray, R K and Biswas, A K (1993) Leaching of pure and cobalt bearing goethites in sulphurous acid: kinetics and mechanisms. Hydrometallurgy, 32 (1). pp. 39-59.

Kumar, Rakesh and Ray, R K and Biswas, A K (1990) Physico-chemical nature and leaching behaviour of goethites containing Ni, Co and Cu in the sorption and coprecipitation mode. Hydrometallurgy, 25 . pp. 61-83.

Kumar, Rakesh and Biswas, A K (1986) Zinc recovery from zawar ancient siliceous slag. Hydrometallurgy, 15 . pp. 267-280.