期刊
CARBON
卷 60, 期 -, 页码 193-201出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2013.03.064
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资金
- Toyota Motor Co.
- Toyota Boshoku Co.
The small-angle X-ray scattering measurements during tensile deformation have been performed for studying the structure and mechanical property relationships of twisted carbon nanotube (CNT) yarns. The tensile strength distribution and the diameter changes during tensile deformation have also been measured. The orientation distribution of the CNTs in the yarn has been determined and its changes during tensile deformation have been related to the variation of the tensile modulus with the twist angle. The tensile modulus and Poisson's ratio of the yarns decreased with increasing twist angle, whereas the tensile strength of the yarn showed a maximum at the twist angle of 25 degrees. At this twist angle, the distribution width of the tensile strength was minimum indicating the higher uniformity of the yarn structure. (C) 2013 Elsevier Ltd. All rights reserved.
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