Paper Title:
Fabrication of Al-Based FGM Containing TiO2 Nano-Particles by a Centrifugal Mixed-Powder Method
  Abstract

Centrifugal method is often applied as the fabrication process of Functionally Graded Materials (FGMs). This is because that this processing method can fabricate FGMs with large size, easily. However, this processing method has a serious problem, namely it is difficult to disperse particles with small size and low wet ability with matrix. Many of powders with nano or very fine particle size often have attractive attention as functional materials. Therefore the above problem of the centrifugal method should be improved. In this study, we proposed a centrifugal mixed-powder method as novel processing technique for the fabrication of FGM containing nano-particle. On first of this processing, powder mixture of functional nano-particle and matrix material is inserted into rotating mold. After that, matrix ingot is melted in crucible and then the molten matrix is poured into the rotating mold with powder mixture, and then, powder of matrix material will be melted by the heat from molten matrix poured from crucible. Finally, an FGM ring with functional nano-particles distributed on its surface can be obtained. Using this processing method, Al-based FGM containing TiO2 nano-particles on its surface could be fabricated. TiO2 particle has approximately 500nm in diameter. From microstructural observation, it was found that TiO2 particles were successfully distributed on surface of FGM ring. Also, hardness on the surface of the FGM ring was higher than that on inner part due to the dispersion hardening.

  Info
Periodical
Materials Science Forum (Volumes 631-632)
Edited by
Akira Kawasaki, Akinaga Kumakawa and Masayuki Niino
Pages
441-447
DOI
10.4028/www.scientific.net/MSF.631-632.441
Citation
Y. Inaguma, H. Sato, Y. Watanabe, "Fabrication of Al-Based FGM Containing TiO2 Nano-Particles by a Centrifugal Mixed-Powder Method", Materials Science Forum, Vols. 631-632, pp. 441-447, 2010
Online since
October 2009
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: P.D. Sequeira, Yoshimi Watanabe, L.A. Rocha
Abstract:Al-Al3Zr and Al-Al3Ti functionally graded materials (FGMs) were produced by a centrifugal method from Al-5wt% Zr and Al-5wt% Ti alloys,...
609
Authors: Emad Oveisi, Farshad Akhlaghi
Abstract:In the present study, Al-Si samples with a graded structure were produced via horizontal centrifugal casting. The distribution of primary...
865
Authors: Hisashi Sato, Yoshifumi Inaguma, Yoshimi Watanabe
Abstract:Recently, a centrifugal mixed-powder method has been proposed as the processing technique of functionally graded material (FGM) containing...
2160
Authors: Kiran Aithal, Narendranath, Vijay Desai, P.G. Mukunda
Abstract:Functionally Graded Material (FGM) is a class of material wherein the properties and structure are varied intentionally from one side to the...
281
Authors: Yan Pei Song, Yong Kai Li, Hui Gai Wang
Abstract:The dead or scrap WCP/Fe-C composites parts were remelted via medium frequency induction furnace. Two recycled composites rings...
1000