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Synthesis of functionally graded mat...

Wang, Xuan.

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Synthesis of functionally graded materials via electrophoretic deposition and sintering.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Synthesis of functionally graded materials via electrophoretic deposition and sintering./
Author:	Wang, Xuan.
Description:	191 p.
Notes:	Advisers: Marc A. Meyers; Eugene A. Olevsky.
Contained By:	Dissertation Abstracts International67-03B.
Subject:	Engineering, Materials Science. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3208812
ISBN:	9780542573842

Synthesis of functionally graded materials via electrophoretic deposition and sintering.
Wang, Xuan.

Synthesis of functionally graded materials via electrophoretic deposition and sintering. - 191 p.

Advisers: Marc A. Meyers; Eugene A. Olevsky.

Thesis (Ph.D.)--University of California, San Diego and San Diego State University, 2006.

In this research, both the experiments and the modeling aspects of the net-shape fabrication of Functionally Graded Materials (FGM) by Electrophoretic Deposition (EPD) and consecutive sintering have been investigated. In order to obtain FGMs with desired final shape and properties, the issues regarding the shape evolution during sintering, the optimization of initial properties and composition profiles, and the fabrication of green components by EPD have been analyzed.

ISBN: 9780542573842Subjects--Topical Terms:

1017759
Engineering, Materials Science.

Synthesis of functionally graded materials via electrophoretic deposition and sintering.
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020 $a 9780542573842
035 $a (UMI)AAI3208812
035 $a AAI3208812
040 $a UMI $c UMI
100 1 $a Wang, Xuan. $3 1271363
245 1 0 $a Synthesis of functionally graded materials via electrophoretic deposition and sintering.
300 $a 191 p.
500 $a Advisers: Marc A. Meyers; Eugene A. Olevsky.
500 $a Source: Dissertation Abstracts International, Volume: 67-03, Section: B, page: 1648.
502 $a Thesis (Ph.D.)--University of California, San Diego and San Diego State University, 2006.
520 $a In this research, both the experiments and the modeling aspects of the net-shape fabrication of Functionally Graded Materials (FGM) by Electrophoretic Deposition (EPD) and consecutive sintering have been investigated. In order to obtain FGMs with desired final shape and properties, the issues regarding the shape evolution during sintering, the optimization of initial properties and composition profiles, and the fabrication of green components by EPD have been analyzed.
520 $a In order to fabricate FGMs by the proposed technological sequence (EPD with the following sintering), the initial shape has to be optimized prior to sintering. In this research, the formulations to simulate sintering of an FGM were developed based on the continuum theory of sintering. A finite element sintering-modeling subroutine has been created and linked to the commercial finite element package ABAQUS. The shape changes of FGM disks during sintering were simulated. In order to obtain the desired final shape after sintering, an inverse modeling methodology was developed to optimize the initial shape.
520 $a In order to fabricate the optimized initial shape of a green FGM specimen determined by the inverse continuum modeling of sintering, EPD of a number of FGMs was investigated. The FGM green specimens made of Al2O 3 and ZrO2 with the initial shape predicted by the inverse modeling, were deposited using self-designed equipments. The acetone-based suspension with n-butylamine as a particle-charging additive was used. The comparison of the shape between the sintered and the green FGM indicated that the developed experimental-theoretical methodology provided a reliable solution for near net shaping of complex 3-D FGM components. Other applications of EPD, such as in electronic packaging materials and zeolites, were also investigated.
520 $a In order to fabricate functionally graded materials based on aligned porous structures, unidirectional freezing followed by freeze-drying and sintering has been investigated. The aligned porous preforms were sintered and then impregnated by brushing gold. After annealing at 600°C, the gold wires which have the diameters ranging from several hundreds of nanometers to several micrometers have been found in the ceramic preforms.
590 $a School code: 0385.
650 4 $a Engineering, Materials Science. $3 1017759
650 4 $a Engineering, Mechanical. $3 783786
690 $a 0548
690 $a 0794
710 2 $a University of California, San Diego and San Diego State University. $3 1264460
773 0 $t Dissertation Abstracts International $g 67-03B.
790 $a 0385
790 1 0 $a Meyers, Marc A., $e advisor
790 1 0 $a Olevsky, Eugene A., $e advisor
791 $a Ph.D.
792 $a 2006
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3208812