Microstructure, properties and formation mechanism of SiO2/SiC nano-coating onto carbon fiber by non-electrode plasma electrolysis

Aiming Bu, Yuping Zhang, Yongfu Zhang, Yonghua Shen, Weiwei Chen*, Huanwu Cheng, Lu Wang, Peng Wang, Maoyuan Li, Lin Lu, Yiqiang Hong

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

Recently we have developed a novel non-electrode plasma electrolysis technique in order to rapidly prepare SiO2/SiC nano-coating onto carbon fiber. The surface and cross-sectional microstructures of the SiO2/SiC nano-coating were systematically investigated. The nano-coating was dense and roughly uniform, mainly composed of amorphous SiO2, where a small amount of SiC was distributed. A superior bonding was observed between the nano-coating and the fiber substrate. The cross-sectional TEM revealed ∼80 nm in the thickness for the coating. The SiO2/SiC nano-coating significantly reduced the oxidation rate with the burn-out temperature increasing from 880 °C to 1250 °C. It was proposed that the heat evolution, mechanical effect and plasma chemical reactions had a critical effect on the formation of the nano-coating. We believe that the novel non-electrode plasma electrolysis technique will find a wide range of applications in modifying the interface of carbon fiber reinforced composite materials.

Original languageEnglish
Pages (from-to)346-351
Number of pages6
JournalJournal of Alloys and Compounds
Volume773
DOIs
Publication statusPublished - 30 Jan 2019

Keywords

  • Carbon fiber
  • Nano-coating
  • Non-electrode plasma electrolysis
  • Oxidation resistance
  • SiO/SiC

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