Electronic and Structural Studies of Carbon/Carbon Composites,
Abstract
Room temperature Raman microprobe x-ray diffraction and electrical resistivity measurements have been performed on carbon/carbon composites made from mesophase pitch which were heat treated at temperatures above 2680 Celsius. Results of these measurements indicate that both the ex-pitch carbon fiber and mesophase pitch matrix constituents of the composites were highly graphitic, exhibiting in-plane crystallite dimensions greater than 1000 Angstroms. The c-axis crystallite dimensions were determined by analysis of x ray diffraction peak widths to be approximately 150 Angstroms. Copper chloride was successfully reacted with these carbon-carbon composites forming a stage three graphite intercalation compound in both the fibers and the matrix, as determined by their Raman spectra. Keywords: Carbon carbon composites, Raman characterization carbon carbon composites, Electronic and Structural characterization of carbon carbon composites.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 30, 1987
- Accession Number
- ADA191729
Entities
People
- Gary L. Doll
- J. T. Nicholls
- James S. Speck
- M.s. Dresselhaus
- R. M. Sakya
Organizations
- Massachusetts Institute of Technology