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

Chakrabarti, T and Rangaraj, L and Jayaram, V (2016) On the Low Temperature Densification of Reactively Hot Pressed Non-Stoichiometric ZrC and (Zr,Ti)C. In: Materials Today: Proceedings.

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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°C and 50 MPa pressure. Further, pressureless reaction sintering (RS) is done at 1300-1600°C temperature. It has been found that after 1400°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.

Item Type: Conference or Workshop Item (Paper)
Subjects: CHEMISTRY AND MATERIALS > Chemistry and Materials (General)
CHEMISTRY AND MATERIALS > Metals and Metallic Materials
Depositing User: Mrs SK Pratibha
Date Deposited: 11 Jul 2018 14:45
Last Modified: 11 Jul 2018 14:45
URI: http://nal-ir.nal.res.in/id/eprint/12875

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