Nickel-alumina functionally graded materials by electrophoretic deposition

被引：0

作者：

Nagarajan, N ^{[1
]}

Nicholson, PS ^{[1
]}

机构：

[1] McMaster Univ, Dept Mat Sci & Engn, Ceram Res Grp, Hamilton, ON L8S 4L7, Canada

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2004年 / 87卷 / 11期

关键词：

D O I：

暂无

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Electrophoretic deposition has been used to synthesize nickel-alumina, functionally graded materials from NiO and alumina suspensions in ethanol. Suspension stability and the kinetics of deposition were studied to determine optimum conditions. Deposition starts with an alumina suspension into which a stream of NiO suspension is injected at various flow rates to obtain the desired profiles. The latter were controlled by varying the deposition current density and component flow rate. The green bodies obtained were sintered in Ar/H-2 atmosphere to reduce the NiO to nickel. Various gradation profiles were obtained illustrating the facility of EPD to synthesize continuously graded materials. NiO was used as the precursor for nickel to alleviate settling and rough columnar deposit problems.

引用

页码：2053 / 2057

页数：5

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