对高温处理前后螺旋炭纤维的微观拓扑结构进行了探究与表征,结果表明,制备态螺旋炭纤维具有类似年轮状结构的近圆形横截面,在纵截面上体现为近似鲱鱼骨结构,其石墨微晶尺寸小、取向度差;高温处理后,其三维结构可理想地看作是由石墨微晶以具有锥角的多面柱体形式沿螺旋方向堆叠而成,表观上炭纤维显示为尺寸均匀的多面柱体形貌.X射线衍射和Raman散射结果从宏观量级上证明了样品微观尺度有序度得到提高.为基于结构的性能预测和应用设计提供了可靠的参考.
参考文献
| [1] | Motojima S;Kawaguchi M;Nozaki K et al.Preparation of coiled carbon-fibers by catalytic pyrolysis of acetylene,and its morphology and extension characteristics[J].Carbon,1991,29(03):379-385. |
| [2] | Xiuqin Chen;Shaoming Yang;Seiji Motojima .Morphology and growth models of circular and flat carbon coils obtained by the catalytic pyrolysis of acetylene[J].Materials Letters,2002(1):48-54. |
| [3] | S. Motojima;X. Chen;S. Yang;M. Hasegawa .Properties and potential applications of carbon microcoils/nanocoils[J].Diamond and Related Materials,2004(11/12):1989-1992. |
| [4] | Yang SM.;Chen XQ.;Motojima S. .Coiling-chirality changes in carbon microcoils obtained by catalyzed pyrolysis of acetylene and its mechanism[J].Applied physics letters,2002(19):3567-3569. |
| [5] | In-Hwang W.;Kuzuya T.;Kawabe K.;Motojima S.;Chen XQ. .Effect of external electromagnetic field and bias voltage on the vapor growth, morphology and properties of carbon micro coils[J].Carbon: An International Journal Sponsored by the American Carbon Society,2000(4):565-571. |
| [6] | 陈秀琴.CVD法制备微旋管状炭纤维的微观形貌[J].新型炭材料,2000(03):23-27. |
| [7] | 戈敏,沈曾民.气相催化裂解法制备微米级螺旋形炭纤维的研究[J].新型炭材料,2003(01):31-36. |
| [8] | 毕辉,寇开昌,王召娣,王志超,张教强.石墨化对微螺旋炭纤维形貌和微观结构的影响[J].无机材料学报,2008(02):398-402. |
| [9] | 王兰娟,李春忠,顾锋,周秋玲.乙醇火焰燃烧制备螺旋碳纳米纤维及结构分析[J].无机材料学报,2008(06):1179-1183. |
| [10] | 李峰,杜金红,白朔,成会明.螺旋炭纤维的结构分析[J].材料研究学报,2004(02):113-118. |
| [11] | 吴法宇,杜金红,刘辰光,李莉香,成会明.螺旋炭纤维的微观结构与储能特性[J].新型炭材料,2004(02):81-86. |
| [12] | 毕辉,寇开昌,王召娣,王志超,张教强.微螺旋炭纤维的制备、微观结构及性能[J].人工晶体学报,2008(02):384-387,304. |
| [13] | Yang SM;Ozeki I;Chen X;Katsuno T;Motojima S .Preparation of single-helix carbon microcoils by catalytic CVD process[J].Thin Solid Films: An International Journal on the Science and Technology of Thin and Thick Films,2008(5):718-721. |
| [14] | DU Jinhong,SU Ge,Bai Shuo,SUN Chao,CHENG Huiming.Solid catalytic growth mechanism of micro-coiled carbon fibers[J].中国科学E辑(英文版),2001(04):377-382. |
| [15] | Warren B E .X-ray diffraction in random layer lattices[J].Physical Review,1941,59(09):693-698. |
| [16] | Walker P L.Chemistry and physics of carbon[M].New York,USA:Marcel Dekker,Inc,1969 |
| [17] | Matthews MJ.;Dresselhaus G.;Dresselhaus MS.;Endo M.;Pimenta MA. .Origin of dispersive effects of the Raman D band in carbon materials[J].Physical Review.B.Condensed Matter,1999(10):R6585-R6588. |
| [18] | 谭平恒 .碳纳米管及其相关材料的拉曼光谱学研究(TAN Ping-heng.Raman scattering of single-walled carbon nanotube and its related materials[D].Beijing:Institute of Semiconductors,Chinese Academy of Sciences,2001)[R].北京:中国科学院半导体研究所,2001. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%