Microstructures of functionally graded materials fabricated by centrifugal solid-particle andin-situ methods |
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| Authors: | Yoshimi Watanabe Ick Soo Kim Yasuyoshi Fukui |
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| Affiliation: | (1) Department of Engineering Physics, Electronics and Mechanics Graduate School of Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, 466-8555 Nagoya, Japan;(2) Department of Functional Machinery and Mechanics, Shinshu University, 3-15-1 Tokida, 386-8567 Ueda, Japan;(3) Department of Mechanical Engineering, Kagoshima University, 1-21-40, Korimoto, 890-0065 Kagoshima, Japan |
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| Abstract: | Functionally graded materials (FGMs) belong to a relatively new class of inhomogeneous composite materials, in which the composition and/or microstructure undergo a gradual change along some directions. In this review article, the microstructures and composition gradients in Al/SiC, Al/Shirasu (volcanic eruptions commonly found in south Kyushu in Japan), Al/Al3Ti, Al/Al3Ni, Al/Al2Cu FGMs have been investigated. The Al/SiC, Al/Shirasu and Al/Al3Ti FGMs are fabricated by the centrifugal solid particle method where the distribution particles of SiC, Shirasu and Al3Ti are solids in the melts. On the other hand, Al/Al3Ni and Al/Al2Cu FGMs are fabricated by the centrifugalin-situ method where Al/Al3Ni and Al/Al2Cu systems have lower liquidus temperatures than the processing temperatures. The feature of Al/(Al3Ti−Al3Ni) hydrid FGM, which is fabricated by a method combining both the centrifugal solid-particle andin-situ methods, is also shown. |
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| Keywords: | functionally graded materials (FGMs) density centrifugal solid-particle method particle size |
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