Research and Development of Porous Aluminum Produced by Powder Metallurgy

被引：0
|
作者：
Zhang J. [1 ,2 ,3 ]
Wang L. [1 ,2 ,3 ,4 ,5 ]
Zheng F. [1 ,2 ,3 ]
Hu Q. [1 ,2 ,3 ,4 ,5 ]
Wang L. [1 ,2 ,3 ,4 ,5 ]
机构：
[1] Metal Powder Materials Industrial Technology Research Institute of GRINM, Beijing
[2] GRIPM Advanced Materials Co.,Ltd., Beijing
[3] General Research Institute for Nonferrous Metals, Beijing
[4] Beijing GRIPM Advanced Materials Research Institute Co.,Ltd., Beijing
[5] Beijing Engineering Research Center of Metal Powder, Beijing
来源：
Cailiao Daobao/Materials Reports | 2023年 / 37卷 / 12期
关键词：
porosity; porous aluminum; powder metallurgy; sintering aid; sintering process;
D O I：
10.11896/cldb.21100151
中图分类号：
学科分类号：
摘要：
Powder metallurgy porous aluminum material has broad application prospects in aerospace, electronics, and new energy due to its advantages, including lightweight, corrosion resistance, uniform and controllable pores, large specific surface area, and near-net-shape. This kind of material is suitable for products such as self-lubricating bearing, filters, the capillary core of heat pipe, aluminum-air batteries, metal electrode current collectors, energy-absorbing materials, catalyst carrier, etc. The biggest challenge for fabricating powder metallurgy porous aluminum material is that the surface of the aluminum powder is always covered with a thermodynamically stable oxide film. The existence of oxide film impedes the sintering diffusion. In this paper, the disruption mechanism of the oxide film is reviewed from the aspects of sintering additives and sintering process. In addition, fabrication methods of powder metallurgy porous aluminum material such as pressing sintering, loose-powder sintering, paste coating-sintering, and non-aqueous gel injection molding method, are summarized. In order to provide reference for the development of powder metallurgy porous aluminum, the research directions of this kind of material are also introduced, and its development trend is predicted. © 2023 Cailiao Daobaoshe/ Materials Review. All rights reserved.
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