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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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Official URL: http://dx.doi.org/10.1016/j.ceramint.2012.12.016

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
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)
Depositing User: Francis Jayakanth
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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