Home HOME Kovove Materialy-Metallic Materials 2019 Kovove Materialy-Metallic Materials Vol. 57 (2019), no. 2, pp.105–111

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Kovove Materialy-Metallic Materials Vol. 57 (2019), no. 2, pp.105–111

Title: Mechanical properties of aluminum foams ceramic coated through plasma electrolytic oxidation
Author: F. Cavuslu, K. Korkmaz, M. Usta
Abstract: 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.
Keywords: plasma electrolytic oxidation, aluminum foams, surface treatment, mechanical properties
Published online: 21-Mar-2019
Year: 2019, Volume: 57, Issue: 2 Page From: 105, Page To: 111
doi:10.4149/km_2019_2_105


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