Fracture toughness enhancement for metal-reinforced alumina
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With the idea to determine ways of tailoring alumina (Al2O3) in order that one or more toughening mechanisms are activated in service, investigations about the production of Al2O3-based composites with different reinforcement metals and intermetallics have been carried out. The synthesis of composites materials has been made by means of both; liquid and solid pressureless sintering of an intensive mechanical mixture of powders. With the use of some metals in the chemical formulations, significant improvements in ceramic toughness have been reported. From the fracture toughness measurements and microstructural observations, it can be concluded that the toughening mechanism in Al2O3/metal reinforced composites is due to crack bridging and crack deflection.
Abstract
With the idea to determine ways of tailoring alumina (Al2O3) in order that one or more toughening mechanisms are activated in service, investigations about the production of Al2O3-based composites with different reinforcement metals and intermetallics have been carried out. The synthesis of composites materials has been made by means of both; liquid and solid pressureless sintering of an intensive mechanical mixture of powders. With the use of some metals in the chemical formulations, significant improvements in ceramic toughness have been reported. From the fracture toughness measurements and microstructural observations, it can be concluded that the toughening mechanism in Al2O3/metal reinforced composites is due to crack bridging and crack deflection.
참고문헌 (16)
- J.K. Wessel, "The Handbook of Advanced Materials", pp.1~ (2004), John Wiley & Sons
- K. Konopka, , J. Mater. Proc. Technol, 175, pp.266~270 (2006)
- C. Marci, , J. Eur. Ceram. Soc, 27, pp.1273~1277 (2007)
- Enrique Rocha-Rangel, "Production and characterization of Al2O3-Cu composite materials", Journal of Ceramic Processing Research, 7(4), pp.311~314 (2006), 세라믹공정연구센터
- M.I. Lieberthal, , Mater. Sci. Eng, A302, pp.83~87 (2001)
- E. Lucchini, , Mater. Sci. Eng, A357, pp.369~372 (2003)
- N. Travirskya, , Mater. Lett, 57, pp.3422~3424 (2003)
- V.M. Sglavo, , Mater. Sci. Eng, A239, pp.665~669 (1997)
- J. Rodel, , J. Eur. Ceram. Soc, 14, pp.153~156 (1994)
- N. Claussen, , Ber. Dtsch. Keram. Ges, 71, pp.301~305 (1994)
- N. Claussen, , J. Mater. Res, 11, pp.2884~2888 (1996)
- L. Mas Gutiérrez, , Proceedings 5th International Conference on High-Temperature Ceramic Matrix Composites - HTCMC5, pp.341~345 (2004)
- A.G. Evans, , J. Am. Ceram. Soc, 59, pp.371~373 (1976)
- Y. Ji, , J. Eur. Ceram. Soc, 22, pp.1927~1930 (2002)
- J. Lalande, , J. Eur. Ceram. Soc, 22, pp.2165~2168 (2002)
- R.W. Steinbrech, , J. Eur. Ceram. Soc, 10, pp.131~135 (1992)