Articles
  • Fabrication of ZrB2/SiC/WC composites via spark plasma sintering and enhancement of oxidation resistance

  • Jae-Seok Choia,**, Jung-Hun Kimb,**, Jae Uk Hura, Sung-Churl Choia and Gye-Seok Ana,*

  • aDivision of Materials Science and Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Korea
    bCeramicware Technology Center, Korea Institute of Ceramic Engineering & Technology, 3321 Gyeongchung-daero, Sindun-myeon, Icheon 17303, Korea

Abstract

To prevent the oxidation of ultra-high-temperature ceramic zirconium diboride (ZrB2) at high temperatures, this study fabricated sintered composites containing silicon carbide and tungsten carbide, and examined the properties related to high-temperature oxidation. Spark plasma sintering was employed for rapid sintering, and a high-temperature torch test was conducted on samples to determine their surface oxidation behaviour. The composites oxidised at high temperature showed different surface oxidation behaviour according to the type of carbide-based additive. Composites containing both carbides, which have different oxidation mechanisms, exhibited better resistance to oxidation than those containing a single carbide.


Keywords: ZrB2, SiC, WC, Spark plasma sintering, Oxidation resistance

This Article

  • 2020; 21(3): 351-357

    Published on Jun 30, 2020

  • 10.36410/jcpr.2020.21.3.351
  • Received on Dec 5, 2019
  • Revised on Mar 6, 2020
  • Accepted on Mar 9, 2020

Correspondence to

  • Gye-Seok An

  • Division of Materials Science and Engineering, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul 04763, Korea
    Tel : +82-2220-0505
    Fax: +82-2290-6767
    **These arthurs were contributed equally to this work.

  • E-mail: faustmaro@hanyang.ac.kr