Evolution of Carbon Fiber Microstructure During Carbonization and High-Temperature Graphitization Measured In Situ Using Synchrotron Wide-Angle X-ray Diffraction. Issue 1754 (2015)

• Record Type: Journal Article
• Authors: Behr, Michael; Rix, James; Landes, Brian; Barton, Bryan; Hukkanen, Eric; Patton, Jasson; Weigand, Steven; Keane, Denis
• Editors: Barabash, R.; Benning, L.G.; Genc, A.; Kim, Y.; Lereu, A.; Li, D.; Lienert, U.; Liss, K.D.; Ohnuma, M.; Ovchinnikova, O.; Passian, A.; Rimer, J.D.; Tetard, L.; Thundat, T.; Zenobi, R.; Zorba, V.
• Is Part Of: MRS proceedings. Issue 1754:(2015)
• Page Start: 13
• Page End: 18
• Publication Date: 2015
• Subjects: x-ray diffraction (XRD), -- fiber, -- polymer; Electrical engineering -- Congresses; Physics -- Congresses; Materials -- Research -- Congresses; Materials science -- Congresses; 620.11
• DOI: 10.1557/opl.2015.636
• Languages: English
• ISSNs: 0272-9172

Abstract

ABSTRACT: This paper will discuss the structure-property model developed that correlates the tensile modulus to the elastic properties and angular distribution of constituent graphitic layers for carbon fiber derived from a polyethylene precursor. In addition, a high-temperature fiber tensile device was built to enable heating of carbon fiber bundles at a variable rate from 25 °C to greater than ∼2300 °C, while simultaneously applying a tensile stress. This capability combined with synchrotron wide-angle x-ray diffraction (WAXD), enabled observation in situ and in real time of the microstructural transformation from different carbon fiber precursors to high-modulus carbon fiber. Experiments conducted using PAN- and PE-derived fiber precursors reveal stark differences in their carbonization and high-temperature graphitization behavior.