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Comparative Studies on Sintering Behavior of Self-Propagating High-Temperature Synthesized Ultra-Fine Titanium Diboride Powder

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Sintering behavior of nano-sized titanium diboride (TiB2) powder prepared by a self-propagating high-temperature synthesis (SHS) technique was compared with that of the commercially available powder. The SHS-made powder showed excellent sinterability at low temperatures and a maximum of 97% densification was achieved at 2223 K, whereas the identically sintered commercial powder could only be densified to ∼86% at 2223 K. The estimated activation energies for sintering of 35±0.07 kJ/mole and 46±0.7 kJ/mole for the SHS and commercial powder, respectively, indicated the possibility of a different mechanism during sintering.

Document Type: Research Article


Affiliations: 1: Department of Metallurgical and Materials Engineering, Indian Institute of Technology, Kharagpur 721 302, India 2: National Metallurgical Laboratory, Jamshedpur 831007, India

Publication date: 2005-06-01

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