Closed-Cell Powder Metallurgical Aluminium Foams Reinforced with 3 vol.% SiC and 3 vol.% Graphite

Closed-cell aluminium foams (nominal composition: AlSi12Mg0.6Fe0.3) were prepared by the powder metallurgical route (using 0.4 wt.% TiH<sub>2</sub> untreated powder as the foaming agent). Pure foams and foams with the addition of 3 vol.% graphite or SiC powder were prepared. The microstr...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Jaroslav Kováčik, Martin Nosko, Natália Mináriková, František Simančík, Jaroslav Jerz
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	aluminium foams composites closed-cell foam powder metallurgy silicon carbide graphite discipline Chemical technology TP1-1185 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/65c74670a7564192803943ab1d51b375
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:65c74670a7564192803943ab1d51b375
record_format	dspace
spelling	oai:doaj.org-article:65c74670a7564192803943ab1d51b3752021-11-25T18:51:37ZClosed-Cell Powder Metallurgical Aluminium Foams Reinforced with 3 vol.% SiC and 3 vol.% Graphite10.3390/pr91120312227-9717https://doaj.org/article/65c74670a7564192803943ab1d51b3752021-11-01T00:00:00Zhttps://www.mdpi.com/2227-9717/9/11/2031https://doaj.org/toc/2227-9717Closed-cell aluminium foams (nominal composition: AlSi12Mg0.6Fe0.3) were prepared by the powder metallurgical route (using 0.4 wt.% TiH<sub>2</sub> untreated powder as the foaming agent). Pure foams and foams with the addition of 3 vol.% graphite or SiC powder were prepared. The microstructure and mechanical properties of the prepared aluminium foams containing reinforcing particles were investigated at constant density and compared to those of the pure foam. Vibration measurements were performed to determine the damping properties and modulus of elasticity of the foams. Uniaxial compression tests were performed to determine the following mechanical properties: collapse stress, efficiency of energy absorption, plateau length and densification strain of the foams. All the foams behaved in a brittle manner during compression. Finally, the effect of admixed graphite and SiC powders on the properties of the investigated foam was evaluated, discussed and modelled. The addition of powders changed all investigated properties of the foams. Only the efficiency of energy absorption at constant density was almost identical.Jaroslav KováčikMartin NoskoNatália MinárikováFrantišek SimančíkJaroslav JerzMDPI AGarticlealuminium foamscompositesclosed-cell foampowder metallurgysilicon carbidegraphite disciplineChemical technologyTP1-1185ChemistryQD1-999ENProcesses, Vol 9, Iss 2031, p 2031 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	aluminium foams composites closed-cell foam powder metallurgy silicon carbide graphite discipline Chemical technology TP1-1185 Chemistry QD1-999
spellingShingle	aluminium foams composites closed-cell foam powder metallurgy silicon carbide graphite discipline Chemical technology TP1-1185 Chemistry QD1-999 Jaroslav Kováčik Martin Nosko Natália Mináriková František Simančík Jaroslav Jerz Closed-Cell Powder Metallurgical Aluminium Foams Reinforced with 3 vol.% SiC and 3 vol.% Graphite
description	Closed-cell aluminium foams (nominal composition: AlSi12Mg0.6Fe0.3) were prepared by the powder metallurgical route (using 0.4 wt.% TiH<sub>2</sub> untreated powder as the foaming agent). Pure foams and foams with the addition of 3 vol.% graphite or SiC powder were prepared. The microstructure and mechanical properties of the prepared aluminium foams containing reinforcing particles were investigated at constant density and compared to those of the pure foam. Vibration measurements were performed to determine the damping properties and modulus of elasticity of the foams. Uniaxial compression tests were performed to determine the following mechanical properties: collapse stress, efficiency of energy absorption, plateau length and densification strain of the foams. All the foams behaved in a brittle manner during compression. Finally, the effect of admixed graphite and SiC powders on the properties of the investigated foam was evaluated, discussed and modelled. The addition of powders changed all investigated properties of the foams. Only the efficiency of energy absorption at constant density was almost identical.
format	article
author	Jaroslav Kováčik Martin Nosko Natália Mináriková František Simančík Jaroslav Jerz
author_facet	Jaroslav Kováčik Martin Nosko Natália Mináriková František Simančík Jaroslav Jerz
author_sort	Jaroslav Kováčik
title	Closed-Cell Powder Metallurgical Aluminium Foams Reinforced with 3 vol.% SiC and 3 vol.% Graphite
title_short	Closed-Cell Powder Metallurgical Aluminium Foams Reinforced with 3 vol.% SiC and 3 vol.% Graphite
title_full	Closed-Cell Powder Metallurgical Aluminium Foams Reinforced with 3 vol.% SiC and 3 vol.% Graphite
title_fullStr	Closed-Cell Powder Metallurgical Aluminium Foams Reinforced with 3 vol.% SiC and 3 vol.% Graphite
title_full_unstemmed	Closed-Cell Powder Metallurgical Aluminium Foams Reinforced with 3 vol.% SiC and 3 vol.% Graphite
title_sort	closed-cell powder metallurgical aluminium foams reinforced with 3 vol.% sic and 3 vol.% graphite
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/65c74670a7564192803943ab1d51b375
work_keys_str_mv	AT jaroslavkovacik closedcellpowdermetallurgicalaluminiumfoamsreinforcedwith3volsicand3volgraphite AT martinnosko closedcellpowdermetallurgicalaluminiumfoamsreinforcedwith3volsicand3volgraphite AT nataliaminarikova closedcellpowdermetallurgicalaluminiumfoamsreinforcedwith3volsicand3volgraphite AT frantiseksimancik closedcellpowdermetallurgicalaluminiumfoamsreinforcedwith3volsicand3volgraphite AT jaroslavjerz closedcellpowdermetallurgicalaluminiumfoamsreinforcedwith3volsicand3volgraphite
_version_	1718410649939214336

Closed-Cell Powder Metallurgical Aluminium Foams Reinforced with 3 vol.% SiC and 3 vol.% Graphite

Ejemplares similares