English, Article edition: MoSi2-IMPROVED SiC COATING TO PROTECT CARBON/CARBON COMPOSITES AGAINST OXIDATION QIANGANG FU; HUI XUE; HEJUN LI; ...

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Bookmark: http://trove.nla.gov.au/version/83780
Physical Description
  • article
Language
  • English

Edition details

Title
  • MoSi2-IMPROVED SiC COATING TO PROTECT CARBON/​CARBON COMPOSITES AGAINST OXIDATION
Author
  • QIANGANG FU
  • HUI XUE
  • HEJUN LI
  • KEZHI LI
  • XIAOHONG SHI
Physical Description
  • article
Notes
  • To improve the oxidation protective ability of SiC coating for carbon/​carbon (C/​C) composites, MoSi2 was introduced in the SiC coating by infiltration technique. XRD and SEM analysis show that the SiC coating obtained by pack cementation is a porous structure with a thickness of about 60â100 μm. After infiltration treatment, MoSi2 was filled in the holes of the porous SiC-coating, and the as-received coating becomes dense without through-thickness crack. Oxidation test shows that, the weight loss of the SiC-coated C/​C is up to 9.23% after 53 h oxidation in air at 1773 K, while the weight loss of the MoSi2-improved SiC-coated C/​C composites is only 0.73% after oxidation for 265 h. The oxidation of C/​C composites is primarily due to the formation of the penetration cracks and the holes on the glass layer.
  • Carbon/​carbon composites, coating, oxidation
  • RePEc:wsi:srlxxx:v:14:y:2007:i:04:p:795-799
Language
  • English
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