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Anisotropic thermal properties of single-wall-carbon- nanotube-reinforced nanoceramics |
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| Authors: | Guo-Dong Zhan Joshua D. Kuntz Hsin Wang Chong-Min Wang Amiya K. Mukherjee ∥ |
| Affiliation: | 1. Department of Chemical Engineering and Materials Science , University of California , Davis, California 95616, USA;2. Metals and Ceramics Division , Oak Ridge National Laboratory , Oak Ridge, Tennessee 37831, USA;3. Interfacial Chemistry and Engineering , Environmental Molecular Science Laboratory, Pacific Northwest National Laboratory , Richland, Washington 99352, USA |
| Abstract: | Dense single-wall-carbon-nanotube-(SWCNT)-reinforced alumina nanocomposites have been fabricated by a novel spark-plasma-sintering technique. Anisotropic thermal properties have been found in carbon nanotube composites. The introduction of ropes of SWCNTs gives rise to a decrease in the transverse thermal diffusivity with increasing carbon nanotube content while it does not change the in-plane thermal diffusivity. This is scientifically interesting and technologically important for the development of materials for novel thermal barrier coatings. |
| Keywords: | Bauschinger effect precipitation-strengthened materials Orowan mechanism dislocation dynamics modelling |