Structural investigation of carbon/carbon composites by neutron scattering

✍ Scribed by Manfred Prem; Gerhard Krexner; Herwig Peterlik

• Book ID: 103886591
• Publisher: Elsevier Science
• Year: 2006
• Tongue: English
• Weight: 667 KB
• Volume: 385-386
• Category: Article
• ISSN: 0921-4526
• DOI: 10.1016/j.physb.2006.05.354

✦ Synopsis

Carbon/carbon (C/C) composite material was investigated by means of small-angle as well as wide-angle elastic neutron scattering. The C/C-composites were built up from bi-directionally woven fabrics from PAN-based carbon fibers. Pre-impregnation with phenolic resin was followed by pressure curing and carbonization at 1000 1C and a final heat treatment at either 1800 or 2400 1C. Measurements of the samples were performed in orientations arranging the carbon fibers, respectively, parallel and perpendicular to the incoming beam. Structural features of the fibers as well as the inherently existing pores are presented and the influence of the heat treatment is discussed. The results are compared to earlier X-ray investigations of carbon fibers and C/C-composites.