Hrtem nanostructural evolution of onion-like spheres in polyacrylonitrile fibres during stabilization and carbonization | |
Wen, Y.1,2; Li, H.1; Peng, G.1,2; Yang, Y.1; Liu, L.1 | |
刊名 | Materials science-poland |
2010 | |
卷号 | 28期号:2页码:479-490 |
关键词 | High resolution transmission electron microscopy Carbon fibre Onion-like sphere |
ISSN号 | 0137-1339 |
通讯作者 | Yang, y.(yangyg@sxicc.ac.cn) |
英文摘要 | Ultrathin sections of polyacrylonitrile (pan) fibre samples in the stabilization and carbonization stages were studied using high-resolution transmission electron microscopy. supplementary analyses by the fourier transform infrared, x-ray diffraction, thermogravimetry mass spectroscopy and elemental analysishave also been done. results showed that the pan fibres contained nanosized crystallites embedded in a continuous amorphous matrix. amorphous onion-like spherical structures were also observed and their structural evolution was investigated. during the stabilization and carbonization process, the outer layers of the onion-like spheres gradually changed from an orderly layered structure into a disordered, dense structure due to cyclization and cross-linking reaction. during carbonization, the onion-like spheres became more dense and compact due to the merging of the ring structures. after carbonization, the onion-like spheres in the pan fibres eventually turned into dense and amorphous domains of carbon fibres. |
WOS关键词 | CARBON-FIBERS ; OXIDATIVE STABILIZATION ; PRECURSOR FIBERS |
WOS研究方向 | Materials Science |
WOS类目 | Materials Science, Multidisciplinary |
语种 | 英语 |
出版者 | OFICYNA WYDAWNICZA POLITECHNIKI WROCLAWSKIEJ |
WOS记录号 | WOS:000280734400011 |
内容类型 | 期刊论文 |
URI标识 | http://www.corc.org.cn/handle/1471x/2412115 |
专题 | 中国科学院大学 |
通讯作者 | Yang, Y. |
作者单位 | 1.Chinese Acad Sci, Inst Coal Chem, Key Lab Carbon Mat, Taiyuan 030001, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Wen, Y.,Li, H.,Peng, G.,et al. Hrtem nanostructural evolution of onion-like spheres in polyacrylonitrile fibres during stabilization and carbonization[J]. Materials science-poland,2010,28(2):479-490. |
APA | Wen, Y.,Li, H.,Peng, G.,Yang, Y.,&Liu, L..(2010).Hrtem nanostructural evolution of onion-like spheres in polyacrylonitrile fibres during stabilization and carbonization.Materials science-poland,28(2),479-490. |
MLA | Wen, Y.,et al."Hrtem nanostructural evolution of onion-like spheres in polyacrylonitrile fibres during stabilization and carbonization".Materials science-poland 28.2(2010):479-490. |
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