Mechanical properties of aluminum foams ceramic coated through plasma electrolytic oxidation

被引：1
|
作者：
Cavuslu, F. [1 ,2 ]
Korkmaz, K. [1 ]
Usta, M. [1 ,3 ]
机构：
[1] Gebze Tech Univ, Dept Mat Sci & Engn, TR-41400 Gebze, Kocaeli, Turkey
[2] Adana Sci & Technol Univ, Dept Mat Engn, TR-01250 Adana, Turkey
[3] Sci & Technol Res Council Turkey TUBITAK, Marmara Res Ctr, Mat Inst, TR-41470 Gebze, Kocaeli, Turkey
来源：
KOVOVE MATERIALY-METALLIC MATERIALS | 2019年 / 57卷 / 02期
关键词：
plasma electrolytic oxidation; aluminum foams; surface treatment; mechanical properties; COATINGS; STRENGTH; MULLITE;
D O I：
10.4149/km_2019_1_105
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Plasma electrolytic oxidation (PEO) treatment is carried out to improve the mechanical properties of the open-cell aluminum foams. Two different pore densities of open-cell aluminum foams (20 PPI and 40 PPI) were treated in an alkaline solution with a low silicate concentration at different current densities and times. The microstructure and phase composition of samples were investigated by scanning electron microscope (SEM) and X-ray diffraction (XRD) respectively. The coating thickness of the struts was increased with the increasing of treatment time. Ceramic coatings were composed of corundum, gamma alumina, and mullite phases. It was found that the compressive properties of the pore density of 20 PPI composite foams were significantly improved by using PEO treatment.
引用
收藏
页码：105 / 111
页数：7
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