Micromechanical testing of carbon fibers deposited by low-pressure laser-assisted chemical vapor deposition
2004 (English)In: Carbon, Vol. 42, no 14, 2905-2913 p.Article in journal (Refereed) Published
Carbon fibers were deposited directly from ethylene by laser-assisted chemical vapor deposition. The precursor gas pressures and the incident laser powers were varied. Micro-mechanical testing was carried out using a high-precision micro-manipulator. During three-point bend testing the fibers showed an elastic response, with no residual strain upon unloading, until fracture. The fibers’ strength and Young’s modulus are reported. A model for fiber fracture is proposed based on fiber cross-section analysis. Scanning electron microscopy was used to study the fiber cross-sections and the fiber surface morphology. The mechanical properties are related to the characteristic fiber microstructure investigated by Raman spectroscopy
Place, publisher, year, edition, pages
2004. Vol. 42, no 14, 2905-2913 p.
Carbon fibers, Laser irradiation, Chemical vapor deposition, Raman spectroscopy, Mechanical properties
IdentifiersURN: urn:nbn:se:uu:diva-69664DOI: doi:10.1016/j.carbon.2004.06.039OAI: oai:DiVA.org:uu-69664DiVA: diva2:97575