한국복합재료학회:학술대회논문집 (Proceedings of the Korean Society For Composite Materials Conference)
- 한국복합재료학회 2004년도 추계학술발표대회 논문집
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- Pages.27-30
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- 2004
Fabrication of Carbon Nanotube Reinforced Alumina Matrix Nanocomosite by Sol-gel Process
- Mo Chan B. (Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology) ;
- Cha Seung I. (Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology) ;
- Kim Kyung T. (Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology) ;
- Lee Kyung H. (Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology) ;
- Hong Soon H. (Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology)
- 발행 : 2004.10.01
초록
Carbon nanotube reinforced alumina matrix nanocomposite was fabricated by sol-gel process and followed by spark plasma sintering process. Homogeneous distribution of carbon nanotubes within alumina matrix can be obtained by mixing the carbon nanotubes with alumina sol and followed by condensation into gel. The mixed gel, consisting of alumina and carbon nanotubes, was dried and calcinated into carbon nanotube/alumina composite powders. The composite powders were spark plasma sintered into carbon nanotube reinforced alumina matrix nanocomposite. The hardness of carbon nanotube reinforced alumina matrix nanocomposite was enhanced due to an enhanced load sharing of homogeneously distributed carbon nanotubes. At the same time, the fracture toughness of carbon nanotube reinforced alumina matrix nanocomposite was enhanced due to a bridging effect of carbon nanotubes during crack propagation.
키워드