Wear behavior of nano-sized metal particle dispersed Al2O3 nanocomposites
- Title
- Wear behavior of nano-sized metal particle dispersed Al2O3 nanocomposites
- Author
- 좌용호
- Keywords
- nanocomposites; ceramic/metal composites; wear behavior; mechanical properties
- Issue Date
- 2006-08
- Publisher
- Trans Tech Publications Ltd.
- Citation
- Key Engineering Materials, v. 317-318, Page. 369-372
- Abstract
- The microstructure and mechanical properties including wear resistance of Al2O3-based nanocomposites with 5 vol% of Cu and Ni-Co dispersions were investigated. Al2O3/Cu and Al2O3/ Ni-Co nanocomposites were fabricated by hydrogen reduction and sintering process using metal oxide and metal nitrates. The composites showed homogeneous microstructures with nano-sized metal dispersions and enhanced fracture strength and toughness compared with monolithic Al2O3. In particular, high toughness and hardness were measured for the Al2O3/Ni-Co nanocomposite consolidated by PECS. A minimum wear coefficient of 2.33 x 10(-5) mm(3)/Nm was obtained for the Al2O3/Ni-Co nanocomposite, while the monolithic Al2O3 showed a value of 2.0 x 10(-5) mm(3)/Nm. Wear behavior is discussed in terms of microstructure and mechanical properties of the nanocomposites.
- URI
- https://www.scientific.net/KEM.317-318.369https://repository.hanyang.ac.kr/handle/20.500.11754/181489
- ISSN
- 1013-9826;1662-9795
- DOI
- 10.4028/www.scientific.net/KEM.317-318.369
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MATERIALS SCIENCE AND CHEMICAL ENGINEERING(재료화학공학과) > Articles
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