Reactive hot pressing of Ti-B-C and Ti-C at 1200 degrees C

Rangaraj, Lingappa and Barman, Kanika and Divakar, Canchi and Jayaram, Vikram (2013) Reactive hot pressing of Ti-B-C and Ti-C at 1200 degrees C. In: Ceramics International, 39 (5). pp. 5955-5961.

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Abstract

Stoichiometric and non-stoichiometric powder mixtures of Ti-B4C and Ti-C with 1 wt% Ni were reactively hot pressed at 40 MPa, 1200 degrees C for 30 min. In both systems, the combined presence of Ni and non-stoichiometry enabled complete densification. While in Ti-C, non-stoichiometry by itself plays a significant role in promoting densification, the formation of intermediate borides in Ti-B4C powder mixtures requires the additional presence of Ni which promotes full reaction through the formation of a transient liquid as established previously in Ti-BN powder mixtures.

Item Type:	Journal Article
Publication:	Ceramics International
Publisher:	Elsevier Science
Additional Information:	Copyright of this article belongs to Elsevier Science.
Keywords:	Borides; Carbides; Densification; Stoichiometry
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	26 Jun 2013 12:25
Last Modified:	26 Jun 2013 12:25
URI:	http://eprints.iisc.ac.in/id/eprint/46744

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