Abstract
In spite of their high temperature and corrosion resistance, ceramics show a brittle nature under applied loads and this limits their usage areas. In order to compensate the weakness of ceramics with metals, which have high ductility, the production of ceramic-metal composite materials has been recently started. In the present study, a ceramic-metal composite material was produced by means of pressureless infiltration method using spinel oxide (MgAl2O4) and Ti-Fe alloy. Atmospheric conditions, Ti-Fe/MgAl2O4 ratio, infiltration temperature and time were chosen as an experimental parameter. The experimenral results showed that a passivating oxide layer on the surface of the Ti-Fe alloy was observed in ambient atmosphere at 1600 °C for 120 minutes and therefore no reaction took place between the spinel and Ti-Fe alloy. Whereas, the Ti-Fe alloy was successfully infiltrated under argon atmosphere at 1550 and 1600 °C for 30, 60 and 120 minutes. The infiltrated Ti-Fe composites were characterized using SEM equipped with EDS. The hardness values of the Ti-Fe/MgAl2O4 composite increased up to 22.5 % Ti-Fe amount and further increase in the Ti-Fe amount led to a decrease in the hardness.
References
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Abstract
References
- S. Neralla, D. Kumar, S. Yarmolenko and J. Sankar, Mechanical properties of nanocomposite metal-ceramic thin films, Composites Part B, 35 (2004)157-162.
- G. KrauB, L. Kübler and E. Trentini, Preparation and properties of pressureless infiltrated SiC and AIN particulate reinforced metal-ceramic composites based on bronze and iron alloys, Materials Science and Engineering A, 337 (2002) 315-322.
- K. Lemster, T. Graule and J. Kuebler, Processing and microstructure of metal matrix composite prepared by pressureless Ti-activated infiltration using Fe-base and Ni-base alloys, Materials Science and Engineering A, 393 (2005) 229-238.
- L. M. Peng, J. W. Caob, K. Nodac, and K.S. Hand, Mechanical properties of ceramic–metal composites by pressure infiltration of metal into porous ceramics, Materials Science and Engineering A, 374, (2004) 1– 9.
- R. Subramanian, J. H. Schneibel, FeAl-TiC cermets- melt infiltration processing and mechanical properties, Materials Science and Engineering A, 239–240 (1997) 633–639.
- A. Contreras, V. H. Lopez, E. Bedolla, Scripta Materialia 51 (2004) 249-53.
- M. Bilen, A. Mergen, M. Gürü and A. Alıcılar, Infiltration of Al alloys into MgAl2O under different atmospheres, Key Engineering Materials, Vols.264- 268 (2004) pp. 1795-1798.
- M. Gürü, M. Korçak, S. Tekeli and A. Güral, “Processing of Zinc-Based MgAl2O4 composite and Effect of Fly Ash Addition”, Key Engineering Materials, June (2006) pp. 1203-1206 (in press).
- N. A. Travitzky, E.Y. Gutmanas, and N. Claussen, Mechanical
- fabricated by pressureless infiltration technique, of
- Materials Letters, 33, (1997), 47-50.
- composites [10] N. A. Travitzky and A. Shlayen, Microstructure and mechanical properties of Al2O3 : Cu–O composites fabricated by pressureless infiltration technique, Materials Science and Engineering A, 244, (1998), 154-160.
- C. Kurnaz, Production of saffir fiber reinforced Zn- Al (ZA 12) based metal matrix composites using infiltration technique and study of their properties, Materials Science and Engineering A, 346, (2003), 108-115.
- A. P. Tomsia, E. Saiz, S. Foppiano and W. Moberly Chan, Synthesis and processing of ceramic- metal composites by reactive metal penetration, Composites Part A, 30 (1999), 399-403.
Details
| Primary Language | English |
|---|---|
| Journal Section | Chemical Engineering |
| Authors | |
| Publication Date | June 22, 2015 |
| Published in Issue | Year 2015 Volume: 28 Issue: 2 |