Synthesis of nanostructured titanium carbide from titanium oxide and Ferro-titanium through mechanical activation

Carbides of Ti have been synthesized directly from its oxides and ferroalloys through high energy mechanical milling and heat treatment. Powders of TiO2 and Fe-Ti mixed with various proportions of graphite were milled in a planetary ball mill for 30 to 90 hours. The milled mixtures were then heat treated at 1100-1300oC for 1 to 2 hours. The as-milled and heat treated powders were characterized by SEM-EDAX, XRD, Pycnometer, and BET techniques. Higher graphite content in the mixture apparently impeded the impact action during milling. Even though longer milling time ensured diminishing particle size, as revealed in SEM, agglomeration was noticed. Formation of carbides of Ti was detected by XRD even in as-milled powders milled for various lengths of time with reduced graphite content along with the change in phase from anatase to rutile. Nanostructured titanium carbide was successfully synthesized under suitable processing conditions using various raw materials. Density, specific surface area and average particle size of the as-milled and heat treated mixtures were correlated with milling time and heat treatment temperature

Isothermal reduction of coal mixed iron-oxide pellets

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Comparison Between the Properties of Al-TiC and Al-(TiC+Fe3C+Fe2Ti+Fe) Composites

This paper aims to study the efficacy of (TiC+Fe3C+Fe2Ti+Fe) powder mixture produced by a new synthesis technique utilizing a cheap source of Fe-Ti and C (in terms of wear resistance and hardness). The powder product was used as reinforcement in Al matrix. Composites were produced by mixing 20 wt% of the reinforcing powder and 80 wt% of Al followed by 10 ton cold pressing and sintering for 2 h at 500 A degrees C. The composites reinforced with the synthesized powders were compared with the composites produced using pure TiC as reinforcement material. Wear rate and hardness of composites using synthesized TiC mixture as the reinforcement material were found to be very close to that produced with pure TiC. The results of wear and hardness thus confirm that the synthesized powders containing TiC, Fe3C, Fe2Ti, and Fe can replace pure TiC in aluminum matrix composite applications

Abstracts of National Conference on Research and Developments in Material Processing, Modelling and Characterization 2020

This book presents the abstracts of the papers presented to the Online National Conference on Research and Developments in Material Processing, Modelling and Characterization 2020 (RDMPMC-2020) held on 26th and 27th August 2020 organized by the Department of Metallurgical and Materials Science in Association with the Department of Production and Industrial Engineering, National Institute of Technology Jamshedpur, Jharkhand, India. Conference Title: National Conference on Research and Developments in Material Processing, Modelling and Characterization 2020Conference Acronym: RDMPMC-2020Conference Date: 26–27 August 2020Conference Location: Online (Virtual Mode)Conference Organizer: Department of Metallurgical and Materials Engineering, National Institute of Technology JamshedpurCo-organizer: Department of Production and Industrial Engineering, National Institute of Technology Jamshedpur, Jharkhand, IndiaConference Sponsor: TEQIP-