Production methods for metallic foams

被引：74

作者：

Banhart, J ^{[1
]}

Baumeister, J ^{[1
]}

机构：

[1] Fraunhofer Inst Appl Mat Res, IFAM, D-28717 Bremen, Germany

来源：

POROUS AND CELLULAR MATERIALS FOR STRUCTURE APPLICATIONS | 1998年 / 521卷

关键词：

D O I：

10.1557/PROC-521-121

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The possibilities for making metallic foams or similar porous metal structures are reviewed. The various processes are classified according to the state of the starting metal - liquid, powdered, ionised. Liquid metal can be foamed directly by injecting gas, gas-releasing foaming agents or by producing supersaturated metal-gas solutions. indirect methods include investment casting and usage of filler materials. Metal powders can also be used as starting materials for metallic foams: mixtures of such powders with foaming agents are compacted to foamable precursor materials that can be foamed in a second step. Instead of foaming agents inert gas can be directly entrapped in the precursor. Metal foams can also be made from metal powder slurries or by using polymer/powder mixtures. Finally, galvanic electro-deposition also allows to make highly porous metallic structures with open pores.

引用

页码：121 / 132

页数：4