Temperature Effects on the Compressive Behaviors of Closed-Cell Copper Foams Prepared by Powder Metallurgy

A fabrication technology of closed-cell copper foams (CCCFs) based on powder metallurgy is proposed, by using the expanded polystyrene foams (EPS) spheres with the prescribed diameter as the space holder before sintering. The material characterization and the quasi-static compressive behaviors of bo...

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Autores principales:	Bin Han, Yunyu Li, Zeyu Wang, Xi Gu, Qi Zhang
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	closed-cell copper foam (CCCF) graded pore uniform pore high temperature Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
Acceso en línea:	https://doaj.org/article/b4e6f3f3dbb342178ba26e3019fb8728
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spelling	oai:doaj.org-article:b4e6f3f3dbb342178ba26e3019fb87282021-11-11T17:59:07ZTemperature Effects on the Compressive Behaviors of Closed-Cell Copper Foams Prepared by Powder Metallurgy10.3390/ma142164051996-1944https://doaj.org/article/b4e6f3f3dbb342178ba26e3019fb87282021-10-01T00:00:00Zhttps://www.mdpi.com/1996-1944/14/21/6405https://doaj.org/toc/1996-1944A fabrication technology of closed-cell copper foams (CCCFs) based on powder metallurgy is proposed, by using the expanded polystyrene foams (EPS) spheres with the prescribed diameter as the space holder before sintering. The material characterization and the quasi-static compressive behaviors of both uniform and graded CCCFs at different temperatures were experimentally studied. A high temperature weakens the initial compressive modulus, plateau stress, and effective energy absorption for both uniform and graded CCCFs; meanwhile, the onset strain of densification and the maximum energy absorption efficiency are less sensitive to temperature, especially for the graded CCCFs. Compared with the uniform CCCF, the graded CCCF with even a small relative density exhibits superiority in terms of the effective energy absorption and the maximum energy absorption efficiency, attributed to the much larger onset strain of densification for the gradient pore arrangement. Finite element simulations based on the ideal sphere foam model can basically mimic the compressive performance of the CCCF samples. It is also found that both the decrease of pore diameter and the increase of cell wall thickness could improve the compressive performance of the CCCFs.Bin HanYunyu LiZeyu WangXi GuQi ZhangMDPI AGarticleclosed-cell copper foam (CCCF)graded poreuniform porehigh temperatureTechnologyTElectrical engineering. Electronics. Nuclear engineeringTK1-9971Engineering (General). Civil engineering (General)TA1-2040MicroscopyQH201-278.5Descriptive and experimental mechanicsQC120-168.85ENMaterials, Vol 14, Iss 6405, p 6405 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	closed-cell copper foam (CCCF) graded pore uniform pore high temperature Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85
spellingShingle	closed-cell copper foam (CCCF) graded pore uniform pore high temperature Technology T Electrical engineering. Electronics. Nuclear engineering TK1-9971 Engineering (General). Civil engineering (General) TA1-2040 Microscopy QH201-278.5 Descriptive and experimental mechanics QC120-168.85 Bin Han Yunyu Li Zeyu Wang Xi Gu Qi Zhang Temperature Effects on the Compressive Behaviors of Closed-Cell Copper Foams Prepared by Powder Metallurgy
description	A fabrication technology of closed-cell copper foams (CCCFs) based on powder metallurgy is proposed, by using the expanded polystyrene foams (EPS) spheres with the prescribed diameter as the space holder before sintering. The material characterization and the quasi-static compressive behaviors of both uniform and graded CCCFs at different temperatures were experimentally studied. A high temperature weakens the initial compressive modulus, plateau stress, and effective energy absorption for both uniform and graded CCCFs; meanwhile, the onset strain of densification and the maximum energy absorption efficiency are less sensitive to temperature, especially for the graded CCCFs. Compared with the uniform CCCF, the graded CCCF with even a small relative density exhibits superiority in terms of the effective energy absorption and the maximum energy absorption efficiency, attributed to the much larger onset strain of densification for the gradient pore arrangement. Finite element simulations based on the ideal sphere foam model can basically mimic the compressive performance of the CCCF samples. It is also found that both the decrease of pore diameter and the increase of cell wall thickness could improve the compressive performance of the CCCFs.
format	article
author	Bin Han Yunyu Li Zeyu Wang Xi Gu Qi Zhang
author_facet	Bin Han Yunyu Li Zeyu Wang Xi Gu Qi Zhang
author_sort	Bin Han
title	Temperature Effects on the Compressive Behaviors of Closed-Cell Copper Foams Prepared by Powder Metallurgy
title_short	Temperature Effects on the Compressive Behaviors of Closed-Cell Copper Foams Prepared by Powder Metallurgy
title_full	Temperature Effects on the Compressive Behaviors of Closed-Cell Copper Foams Prepared by Powder Metallurgy
title_fullStr	Temperature Effects on the Compressive Behaviors of Closed-Cell Copper Foams Prepared by Powder Metallurgy
title_full_unstemmed	Temperature Effects on the Compressive Behaviors of Closed-Cell Copper Foams Prepared by Powder Metallurgy
title_sort	temperature effects on the compressive behaviors of closed-cell copper foams prepared by powder metallurgy
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/b4e6f3f3dbb342178ba26e3019fb8728
work_keys_str_mv	AT binhan temperatureeffectsonthecompressivebehaviorsofclosedcellcopperfoamspreparedbypowdermetallurgy AT yunyuli temperatureeffectsonthecompressivebehaviorsofclosedcellcopperfoamspreparedbypowdermetallurgy AT zeyuwang temperatureeffectsonthecompressivebehaviorsofclosedcellcopperfoamspreparedbypowdermetallurgy AT xigu temperatureeffectsonthecompressivebehaviorsofclosedcellcopperfoamspreparedbypowdermetallurgy AT qizhang temperatureeffectsonthecompressivebehaviorsofclosedcellcopperfoamspreparedbypowdermetallurgy
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Temperature Effects on the Compressive Behaviors of Closed-Cell Copper Foams Prepared by Powder Metallurgy

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