A new estimation method for the degree of graphitization for random layer lattices

• Published in: Carbon (New York) Vol. 48; no. 12; pp. 3446 - 3453
• Main Author: Fujimoto, Hiroyuki
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 01-10-2010; Elsevier
• Subjects: Carbon; Cross-disciplinary physics: materials science; rheology; Exact sciences and technology; Fourier analysis; Fourier transforms; Fullerenes and related materials; diamonds, graphite; Graphitization; Inverse; Lattices; Least squares method; Materials science; Physics; Specific materials; Stacking; Stacks; Inverse; Theory; Carbon
• ISSN: 0008-6223; 1873-3891
• DOI: 10.1016/j.carbon.2010.05.041

The so-called
P
1 structural parameter is well-known as an index for estimating the degree of graphitization, which was proposed by Houska and Warren. The parameter denotes the probability of finding a graphitic stacking relation between the adjacent carbon layer planes and was generally estimated by an inverse Fourier transform based on their theory. However, in their method, the Fourier integration range is too narrow to evaluate the Fourier coefficients precisely and to discuss in detail the
P
1 values obtained from them. In the present study, a newly developed estimation method for the degree of graphitization with higher accuracy using the least square refinement method was presented and the obtained results were compared with those obtained using the conventional inverse Fourier method. The developed program for the analysis will be released in near future.