On the Low Temperature Densification of Reactively Hot Pressed Non-Stoichiometric ZrC and (Zr,Ti)C

Chakrabarti, Tamoghna and Rangaraj, Lingappa and Jayaram, Vikram (2016) On the Low Temperature Densification of Reactively Hot Pressed Non-Stoichiometric ZrC and (Zr,Ti)C. In: Conference on Advances in Refractory and Reactive Metals and Alloys (ARRMA), JAN 27-29, 2016, Mumbai, INDIA, pp. 3077-3085.

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Abstract

Reactive hot pressing (RHP) as a low temperature processing route is explored in the present work. For this purpose, metal-carbide mixtures, 1: 1 molar ratio of zirconium (Zr): zirconium carbide (ZrC) and titanium (Ti): ZrC, are chosen, along with a temperature of 900 degrees C and 50 MPa pressure. Further, pressureless reaction sintering (RS) is done at 1300-1600 degrees C temperature. It has been found that after 1400 degrees C RS, both the compositions reach almost full density. Ti, ZrC composition shows higher hardness (13 vs 11 GPa) than the Zr, ZrC composition. This process would allow dense products to be made by RHP more economically at lower temperature. (C) 2015 Elsevier Ltd. All rights reserved.

Item Type:	Conference Paper
Publication:	MATERIALS TODAY-PROCEEDINGS
Publisher:	ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Additional Information:	Copy right for this article belongs to the ELSEVIER SCIENCE BV, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	20 May 2017 05:20
Last Modified:	20 May 2017 05:20
URI:	http://eprints.iisc.ac.in/id/eprint/56891

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