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| 烧蚀过程中C/C复合材料的结构演变 | |
| 引用本文： | 王俊山,李仲平,敖明,许正辉,刘朗,胡子君,彭维周. 烧蚀过程中C/C复合材料的结构演变[J]. 新型炭材料, 2006, 21(2): 103-108 |
| 作者姓名： | 王俊山 李仲平 敖明 许正辉 刘朗 胡子君 彭维周 |
| 作者单位： | 1. 中国科学院炭材料重点实验室,中国科学院山西煤炭化学研究所,山西,太原,030001;中国科学院,研究生院,北京,100039;航天材料及工艺研究所,先进功能复合材料技术国防科技重点实验室,北京,100076 2. 航天材料及工艺研究所,先进功能复合材料技术国防科技重点实验室,北京,100076 3. 中国科学院炭材料重点实验室,中国科学院山西煤炭化学研究所,山西,太原,030001 |
| 摘 要： | 利用SEM和TEM考察了3D C／C复合材料在电弧加热器上烧蚀后的材料表层显微组织结构变化。发现炭纤维和基体炭中的石墨微晶经过烧蚀后都得到了明显的发展。在距烧蚀表面几个纳米的深度范围内形成了高度取向的带状石墨织构，同时，在带状织构中间也形成了许多孔洞和缝隙。在距烧蚀表面几个微米的深度形成了卷曲柱状结构，在这些柱状结构周围有许多缺陷。在纤维和基体炭的界面区域，靠近纤维一侧形成了带状织构，且织构间的缝隙变大。 |
| 关 键 词： | C/C复合材料 扫描电子显微镜 透射电子显微镜 织构 |
| 文章编号： | 1007-8827（2006）02-0103-06 |
| 收稿时间： | 2006-03-22 |
| 修稿时间： | 2006-05-20 |
Textural evolution of carbon/carbon composites during ablation |
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| WANG Jun-shan,LI Zhong-ping,AO Ming,XU Zheng-hui,LIU Lang,HU Zi-jun,PENG Wei-zhou. Textural evolution of carbon/carbon composites during ablation[J]. New Carbon Materials, 2006, 21(2): 103-108 | |
| Authors: | WANG Jun-shan LI Zhong-ping AO Ming XU Zheng-hui LIU Lang HU Zi-jun PENG Wei-zhou |
| Affiliation: | 1. Key Laboratory of Carbon Materials, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China ; 2. Graduate School of the Chinese Academy of Scienees, Beijing 100039, China; 3. National Key Laboratory of Advaneed Functional Composite Materials, Aerospace Research Institute of Materials and Processing Technology, Beijing 100076, China |
| Abstract: | Textural changes of a 3D carbon/carbon composite after ablation in an arc jet heater were examined under SEM and TEM. It was shown that obvious enlargement of graphite crystallites was generally observed for both carbon fibers and matrix. A highly ordered graphitic ribbon - like texture was developed within a few nanometers of the ablated surface of the carbon fibers with gaps between the ribbons. Crystallites in the form of a round hollow column were pre sent in the matrix of the ablated surface. A ribbon like texture in the interface region near the side of the carbon fibers was observed. |
| Keywords: | Carbon/carbon composites Scanning electron microscopy Transmission electron microscopy Texture |
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