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Oxidation of Titanium Matrix Composites Reinforced with (TiB + TiC) Particulates

  • Young-Jig Kim
  • Poonam Yadav
  • Junhee HahnEmail author
  • Xiao Xiao
  • Dong Bok LeeEmail author
Article
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Abstract

Titanium matrix composites reinforced with (5, 10, 20) vol% (TiB + TiC) particulates were in situ synthesized using melting-investment casting method by reacting Ti with B4C powder. Their oxidation behavior was studied at 800–1000 °C in air. Formed scales consisted of transient TiO3 and stable rutile-TiO2. More dispersed (TiB + TiC) particulates had higher oxidation resistance due to strong Ti–B and Ti–C bonding which required higher activation energy for oxidation compared to Ti–Ti bonding in the matrix. However, such increment in oxidation resistance was limited by the formation of semi-protective titanium oxides, volatile B2O3, and CO2 gas. With increment of (TiB + TiC), scales progressively became thinner, thus improving scale adherence.

Keywords

Oxidation Titanium matrix composite TiB TiC 

Notes

Acknowledgements

This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2017R1D1A1B03028792).

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Copyright information

© The Korean Institute of Metals and Materials 2019

Authors and Affiliations

  1. 1.School of Advanced Materials Science and EngineeringSungkyunkwan UniversitySuwonRepublic of Korea
  2. 2.Center for Energy Materials MetrologyKorea Research Institute of Standards and ScienceDaejeonRepublic of Korea

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