Preparation and Microstructure of Multi-Wall Carbon Nanotubes-Toughened Al sub(2)O sub(3) Composite
With multi-wall carbon nanotubes (MWNTs) as reinforcement, a 12 vol% MWNTs-alumina (Al sub(2)O sub(3)) ceramic composite was obtained by hot pressing. A fracture toughness of 5.55c0.26 MPa.m super(1-2), 1.8 times that of pure Al sub(2)O sub(3) ceramics, was achieved. Experimental results showed that...
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| Veröffentlicht in: | Journal of the American Ceramic Society 2006-02, Vol.89 (2), p.750-753 |
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| container_title | Journal of the American Ceramic Society |
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| creator | Fan, Jinpeng Zhao, Daqing Wu, Minsheng Xu, Zening Song, Jun |
| description | With multi-wall carbon nanotubes (MWNTs) as reinforcement, a 12 vol% MWNTs-alumina (Al sub(2)O sub(3)) ceramic composite was obtained by hot pressing. A fracture toughness of 5.55c0.26 MPa.m super(1-2), 1.8 times that of pure Al sub(2)O sub(3) ceramics, was achieved. Experimental results showed that the enveloping of carbon nanotubes (CNTs) with sodium dodecyl sulfate (SDS) is effective in changing the hydrophobicity of CNTs to hydrophilicity and improving the dispersion of CNTs in aqueous solution. Enveloped with SDS, CNTs can be homogeneously mixed with Al sub(2)O sub(3) at a microscopic level by heterocoagulation. This mixing method can obviously improve the chemical compatibility between CNTs and Al sub(2)O sub(3), which is important for enhancement of interfacial strength between them. |
| doi_str_mv | 10.1111/j.1551-2916.2005.00774.x |
| format | Article |
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A fracture toughness of 5.55c0.26 MPa.m super(1-2), 1.8 times that of pure Al sub(2)O sub(3) ceramics, was achieved. Experimental results showed that the enveloping of carbon nanotubes (CNTs) with sodium dodecyl sulfate (SDS) is effective in changing the hydrophobicity of CNTs to hydrophilicity and improving the dispersion of CNTs in aqueous solution. Enveloped with SDS, CNTs can be homogeneously mixed with Al sub(2)O sub(3) at a microscopic level by heterocoagulation. 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| source | Wiley Journals |
| subjects | Aluminum oxide Carbon Ceramics Dispersions Multi wall carbon nanotubes Nanostructure Sodium Sulfates |
| title | Preparation and Microstructure of Multi-Wall Carbon Nanotubes-Toughened Al sub(2)O sub(3) Composite |
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