The research of improvement on microstructure and properties of TiC-TiB2 composite ceramic prepared by SHS centrifugal casting

DOI

10.2991/msmee-17.2017.118How to use a DOI?

Keywords

TiC-TiB2 composite ceramic; Ni addition; densification; mechanical properties.

Abstract

By changing the mass fraction of Ni in the (Ti+B4C) reaction system, TiC-TiB2 composite ceramics with different Ni mass fraction were prepared by SHS centrifugal casting. TiC-TiB2 composite ceramics are composed of a lot of TiB2 platelets, irregular TiC grains and a few of intermittent net Ni alloy by XRD FESEM and EDS. The results indicate that appropriate Ni addition promotes diffusion between groups and air flow in melting ceramics. The appropriate Ni addition results in the grain refinement and densification of the ceramics. When the mass fraction of Ni addition is 15%, the relative density of the ceramics is 96% and the fracture toughness is 13.6MPa•m0.5 .

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Wenbin Pen
AU  - Zhongmin Zhao
PY  - 2017/05
DA  - 2017/05
TI  - The research of improvement on microstructure and properties of TiC-TiB2 composite ceramic prepared by SHS centrifugal casting
BT  - Proceedings of the 2017 2nd International Conference on Materials Science, Machinery and Energy Engineering (MSMEE 2017)
PB  - Atlantis Press
SP  - 604
EP  - 608
SN  - 2352-5401
UR  - https://doi.org/10.2991/msmee-17.2017.118
DO  - 10.2991/msmee-17.2017.118
ID  - Pen2017/05
ER  -