Microstructure and properties of atmospheric pressure chemical vapor deposition of tungsten carbide

Huicong Zhang, Chengwena Tan*, Xiaodong Yu, Honglei Ma, Huaijian Cai, Fang Wang

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

Tungsten carbide / tungsten coating is prepared from tungsten hexafluoride (WF6), hydrogen (H2) and dimethyl ether (DME) mixtures by chemical vapor deposition (CVD) under atmospheric pressure conditions. The cross-sectional structure and the surface morphology of the coating were observed using optical microscope and scanning electron microscopy. It is found that the tungsten layer is columnar and tungsten carbide / tungsten coating is fine grain lamellar structure. The preferential growth of tungsten was proposed to be effect of DME, and the {100} preferred orientation gradually disappeared by XRD. That the pre-deposition of tungsten on the substrate can improve the coverage of the tungsten carbide coating was observed. Finally, the cross section of the micrograph was measured at 28.77 GPa with a nano-indentation.

Original languageEnglish
Title of host publicationMaterials Science, Energy Technology, and Power Engineering I
Subtitle of host publication1st International Conference on Materials Science, Energy Technology, Power Engineering, MEP 2017
EditorsJun Xiao, Zhibin You, Zhihui Tan
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735415096
DOIs
Publication statusPublished - 8 May 2017
Event1st International Conference on Materials Science, Energy Technology, Power Engineering, MEP 2017 - Hangzhou, China
Duration: 15 Apr 201716 Apr 2017

Publication series

NameAIP Conference Proceedings
Volume1839
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference1st International Conference on Materials Science, Energy Technology, Power Engineering, MEP 2017
Country/TerritoryChina
CityHangzhou
Period15/04/1716/04/17

Keywords

  • coating
  • preferred orientation
  • tungsten
  • tungsten carbide

Fingerprint

Dive into the research topics of 'Microstructure and properties of atmospheric pressure chemical vapor deposition of tungsten carbide'. Together they form a unique fingerprint.

Cite this