Porous Titanium by Electro-chemical Dissolution of Steel Space-holders

被引：41

作者：

Kwok, Peter Jordan ^{[1
]}

Oppenheimer, Scott M. ^{[1
]}

Dunand, David C. ^{[1
]}

机构：

[1] Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA

来源：

ADVANCED ENGINEERING MATERIALS | 2008年 / 10卷 / 09期

关键词：

D O I：

10.1002/adem.200800072

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Electro-chemical dissolution of steel was examined as a new space-holder for creating porosity in sintered titanium. Steel was removed from the sintered Ti-Fe composites in an electrolytic cell with a cylindrical titanium sheet acting as the cathode. Excellent edge retention of the cavity created by dissolution of high-carbon steel wire and the uniformity of the cavity diameter, demonstrates that titanium did not dissolve during the steel dissolution as a result of cathodic protection. Titanium foams produced by dissolution display highly elongated pores with constant diameter and good interconnectivity. The experiment also illustrate the feasibility of creating three-dimensional open porosity in foams with highly regular spherical porosity and low relative density, filling the interstices with fine titanium powders.

引用

页码：820 / 825

页数：6

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