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Dynamic Fracture of Functionally Graded Composites Using an Intrinsic Cohesive Zone Model
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The Optimization of Propagation Characteristic of Elastic Wave in FGM
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Numerical Simulation of a Centrifugal Process to Fabricate Permittivity Graded FGM from Alumina/Epoxy Mixture
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Numerical Simulation of Laser Induced Modification Processes of Ceramic Substrates
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Design Model and Prediction Model on Preparation of Functionally Graded Material by Co-Sedimentation
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Stress Analysis of Powder Compacts with Graded Structures in Sintering Process
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Computer-Integrated Safe Design of FGM Component for Hip Replacement Prosthesis
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Numerical Simulation of a Centrifugal Process to Fabricate Permittivity Graded FGM from Alumina/Epoxy Mixture

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Abstract:

A new numerical method to simulate the centrifugal process of fabricating functionally graded materials (FGMs) from solid-particles/viscous-matrix mixtures is proposed, and the simulation method was successfully applied to a practical fabrication process of FGM from an alumina-fillers/epoxy-resin mixture. Gradient profiles of dielectric constant of the resultant FGM were estimated by using the proposed method and compared with the experimental ones, resulting in reasonable agreement between them. Based on the numerical results, gradient pro- files of the number density and size of the dispersed fillers were confirmed, and contribution of the filler size toward the gradient in the packing fraction was demonstrated. It is concluded that the gradient in the filler distribution can be intentionally regulated by changing not only the centrifugal conditions, but also the size distribution of the fillers.

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Functionally Graded Materials VIII View Preview

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Periodical:

Materials Science Forum (Volumes 492-493)

Pages:

459-464

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.492-493.459

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Online since:

August 2005

Authors:

Shin-ichiro Tsuru, Noriyuki Hayashi, Tomohiko Onoda, Yasushi Sakamoto, Masanori Hara

Keywords:

Alumina Filler, Centrifugal Method, Dielectric Constant, Epoxy Resin (ER), Fabrication, Functionally Graded Material (FGM), Numerical Simulation, Packing Fraction

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© 2005 Trans Tech Publications Ltd. All Rights Reserved

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