A quantitative, space-resolved method for optical anisotropy estimation in bulk carbons. (September 2015)

• Record Type: Journal Article
• Authors: Gillard, Adrien P.; Couégnat, Guillaume; Caty, Olivier; Allemand, Alexandre; Weisbecker, Patrick; Vignoles, Gerard L.
• Is Part Of: Carbon. Volume 91(2015)
• Page Start: 423
• Page End: 435
• Publication Date: 2015-09
• Subjects: Carbon -- Periodicals; Carbone -- Périodiques; Koolstof; Toepassingen; Electronic journals; 546.681
• DOI: 10.1016/j.carbon.2015.05.005
• Languages: English
• ISSNs: 0008-6223

Abstract

Abstract: This paper presents an innovative and quantitative method for characterization of bulk carbons using polarized light microscopy. It yields maps of transverse preferential orientation and quantitative transverse anisotropy. It can be utilized on any region observable with an optical microscope, at any attainable scale. It requires a set of micrographs from the same region of a carbon-based sample at different combinations of polarizer and analyzer positions. Applications of the technique to several actual carbon-based materials are presented and discussed.