| タイトル | Micro-Scale Mechanical Testing of Non-Woven Carbon Nanotube Sheets and Yarns |
| 本文（外部サイト） | http://hdl.handle.net/2060/20130011063 |
| 著者（英） | Morestin, F.; Jones, J. S.; Cao, J.; Magargee, J. |
| 著者所属（英） | NASA Goddard Space Flight Center |
| 発行日 | 2013-01-01 |
| 言語 | eng |
| 内容記述 | Non-woven carbon nanotube (CNT) sheets and yarns were tested using a novel micro-scale mechanical testing system. CNT sheets were observed to delaminate during uniaxial testing using an adbesive gripping method, resulting from a higher proportion of load bearing in the outer sheets versus internal sheets and an apparently low interlaminar shear strength. In response to this, a new spool-grip method was used to alleviate non-uniform through-thickness stresses, circumvent premature delamination, and allow the sheet material to sustain a 72% increase in measured tensile strength. Furthermore, tension tests of CNT yarns showed that the yarn-structure was approximaiely 7 times stronger than the sheet structure, owing to a higher degree of CNT alignment in the test direction. |
| NASA分類 | Nonmetallic Materials |
| レポートNO | GSFC.CP.7532.2013 |
| 権利 | Copyright, Distribution as joint owner in the copyright |
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