分别采用激光拉曼光谱法(Raman)、广角X一射线衍射法(WAXD)研究并比较了聚丙烯腈基碳纤维在高温处理过程中,石墨结构形成时微晶的生长,尤其是在宽度方向上的增长规律.结果表明,在所选取的高温处理温度范围内,随着处理温度的不断提高,在石墨层面间距不断减小的同时,微晶在宽度方向上的增长基本上呈线性.拉曼光谱和X-射线衍射两种分析手段均能有效表征石墨微晶及片层结构,但由于基本空间模型的不同,两者所反映的基本结构信息有一定差别.
参考文献
| [1] | Beny-Bassez C;Bouzaud J N .Characterization of carbonaceous materials by correlated electron and optical microscopy and Raman microspectroscopy[J].Scanning Electron Microscopy,1985,41:119-132. |
| [2] | Lee YJ. .The second order Raman spectroscopy in carbon crystallinity[J].Journal of Nuclear Materials: Materials Aspects of Fission and Fusion,2004(2/3):174-179. |
| [3] | Cuesta A.;Laureyns J.;Martinez-Alonso A.;Tascon JMD.;Dhamelincourt P. .Comparative performance of X-ray diffraction and Raman microprobe techniques for the study of carbon materials[J].Journal of Materials Chemistry: An Interdisciplinary Journal dealing with Synthesis, Structures, Properties and Applications of Materials, Particulary Those Associated with Advanced Technology,1998(12):2875-2879. |
| [4] | Gruber T;Zerda T M;Gerspacher M .Raman studies of http://www.yhclgy com 宇航材料工艺 2011年第1期 heat-treated carbon blacks[J].CARBO,1994,32(06):1377-1382. |
| [5] | Gerald A. Zickler;Bernd Smarsly;Notburga Gierlinger .A reconsideration of the relationship between the crystallite size L_a of carbons determined by X-ray diffraction and Raman spectroscopy[J].Carbon: An International Journal Sponsored by the American Carbon Society,2006(15):3239-3246. |
| [6] | Tuinstra F;Keenig J L .Raman Spectrum of Graphite[J].Journal of Chemical Physics,1970,53:1126-1130. |
| [7] | Kinight D S;White W B .Characterization of diamond films by Raman spectroscopy[J].Journal of Materials Research,1989,4(02):385-393. |
| [8] | Warren B E .X-ray diffraction in random layer lattices[J].Physical Review,1941,59:693-698. |
| [9] | Jenkins G M;Kwamara K.Polymeric Carbon-Carbon Fiber,Glass and Char[M].Cambridge:Cambridge University Press,1976:140-145. |
| [10] | Reich S;Tomsen C .Baman spectroscopy of graphite[J].Philosophical Transactions of the Royal Society of London Series A,2004,362:2271-2288. |
| [11] | Nemanich R J;Solin S A .First-and second-order Baman scattering from finite-size crystals of graphite[J].Physical Review B,1979,20(02):392-401. |
| [12] | Endo M .Structure of mesophabe pitch-based carbon fibers[J].Journal of Materials Science,1988,23(02):598-605. |
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