dc.contributor.author |
Yuan, Guanming
|
|
dc.contributor.author |
Li, Xuanke
|
|
dc.contributor.author |
Dong, Zhijun
|
|
dc.contributor.author |
Xiong, Xiaoqing
|
|
dc.contributor.author |
Rand, Brian
|
|
dc.contributor.author |
Cui, Zhengwei
|
|
dc.contributor.author |
Cong, Ye
|
|
dc.contributor.author |
Zhang, Jiang
|
|
dc.contributor.author |
Li, Yanjun
|
|
dc.contributor.author |
Zhang, Zhongwei
|
|
dc.contributor.author |
Wang, Junshan
|
|
dc.date.accessioned |
2014-02-04T13:28:56Z |
|
dc.date.available |
2014-02-04T13:28:56Z |
|
dc.date.issued |
2014-03 |
|
dc.description.abstract |
Ribbon-shaped carbon fibers have been prepared from mesophase pitch by melt-spinning,
oxidative stabilization and further heat treatment. The internal graphitic layers of ribbon-shaped
carbon fibers graphitized at 2800 C show a highly preferred orientation along the
longitudinal direction. Parallel stretched and unidirectional arranged ribbon-shaped carbon
fibers treated at about 450 C were sprayed with a mesophase pitch powder grout,
and then hot-pressed at 500 C and subsequently carbonized and graphitized at various
temperatures to produce one-dimensional carbon/carbon (C/C) composite blocks. The
shape and microstructural orientation of ribbon fibers have been maintained in the process
of hot-pressing and subsequent heat treatments and the main planes of the ribbon fibers
are orderly accumulated along the hot-pressing direction. Microstructural analyses indicate
that the C/C composite blocks have a typical structural anisotropy derived from the
unidirectional arrangement of the highly oriented wide ribbon-shaped fibers in the composite
block. The thermal conductivities of the C/C composites along the longitudinal
direction of ribbon fibers increase with heat-treatment temperatures. The longitudinal
thermal conductivity and thermal diffusivity at room temperature of the C/C composite
blocks graphitized at 3100 C are 896 W/m K and 642 mm2/s, respectively. |
en |
dc.description.librarian |
hb2014 |
en |
dc.description.librarian |
ai2014 |
|
dc.description.sponsorship |
Key Program of Major Research Plan of the National Natural Science Foundation (grant No. 91016003) and the National Natural Science Foundation (grant No. 51372177) of China. |
en |
dc.description.uri |
http://www.elsevier.com/locate/carbon |
en |
dc.identifier.citation |
Yuan, G, Li, X, Dong, Z, Xiong, X, Rand, B, Cui, Z, Cong, Y, Zhang, J, Li, Y, Zhang, Z & Wang, J 2014, 'Pitch-based ribbon-shaped carbon-fiber-reinforced one-dimensional carbon/carbon composites with ultrahigh thermal conductivity', Carbon, vol. 68, pp. 413-425. |
en |
dc.identifier.issn |
0008-6223 (print) |
|
dc.identifier.issn |
1873-3891 (online) |
|
dc.identifier.other |
10.1016/j.carbon.2013.11.018 |
|
dc.identifier.uri |
http://hdl.handle.net/2263/33283 |
|
dc.language.iso |
en |
en |
dc.publisher |
Elsevier |
en |
dc.rights |
© 2013 Elsevier Ltd. All rights reserved. Notice : this is the author’s version of a work that was accepted for publication in Carbon. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Carbon, vol. 68, pp.413-425, 2014. doi : 10.1016/j.carbon.2013.11.018 |
en |
dc.subject |
Carbon-fiber-reinforced |
en |
dc.subject |
Thermal conductivity |
en |
dc.subject.lcsh |
Carbon composites -- Thermal conductivity |
en |
dc.subject.lcsh |
Graphitization |
en |
dc.subject.lcsh |
Carbon fibers |
en |
dc.title |
Pitch-based ribbon-shaped carbon-fiber-reinforced one-dimensional carbon/carbon composites with ultrahigh thermal conductivity |
en |
dc.type |
Postprint Article |
en |