Oxidation behavior of Tyranno ZMI-SiC fiber/SiC-SiBC matrix composite from 800 to 1200 °C

Donglin Zhao, Xiaomeng Fan, Xiaowei Yin, Xiaoyu Cao, Jing Zhang

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

In this work, the self-healing Si-B-C matrix-modified ZMI-SiC fiber/SiC (SiC/SiC-SiBC) composite was prepared by a combined process of chemical vapor infiltration, slurry infiltration, and liquid silicon infiltration. The weight changes of the as-fabricate composite after oxidation at 800, 1000, and 1200 °C for 100 h were -0.41%, -0.06%, +0.05%, respectively. The corresponding strength retention ratios were 75%, 99%, 100%, respectively. With the increase of oxidation temperature, coating cracks would be closed. A dense oxidation film was formed with the oxidation of the SiBC matrix, preventing the oxidation of interphase and fiber and leading to excellent oxidation resistance at 1000 and 1200 °C.

Original languageEnglish
Article number1367
JournalMaterials
Volume11
Issue number8
DOIs
StatePublished - 7 Aug 2018

Keywords

  • Ceramic matrix composite
  • Fibers
  • Oxidation resistance

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