Details

Autor(en) / Beteiligte

• LI, He-Jun
• HUI XUE
• WANG, Yong-Jie
• FU, Qian-Gang
• YAO, Dong-Jia

Titel

A MoSi2-SiC-Si oxidation protective coating for carbon/carbon composites

Ist Teil von

• Surface & coatings technology, 2007-10, Vol.201 (24), p.9444-9447

Ort / Verlag

Lausanne: Elsevier

Erscheinungsjahr

2007

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• To protect carbon/carbon (C/C) composites from oxidation, a dense coating has been produced by a two-step pack cementation technique. XRD and SEM analysis shows that the as-obtained coating was composed of MoSi2, SiC and Si with a thickness of 80-100mum. The MoSi2-SiC-Si coating has excellent anti-oxidation property, which can protect C/C composites from oxidation at 1773K in air for 200h and the corresponding weight loss is only 1.04%. The weight loss of the coated C/C composites is primarily due to the reaction of C/C substrate and oxygen diffusing through the penetration cracks in the coating.