Aluminium matrix composites fabricated by infiltration method

• Autorzy: Dobrzański, L. A. , Kremzer, M. , Nowak, A. , Nagel, A.
• Języki publikacji: EN

Abstrakty

EN

Purpose: The aim of this work is to examine the structure and properties of metal matrix composites obtained by infiltration method of porous ceramic preforms by liquid aluminium alloy. Design/methodology/approach: Ceramic preforms were manufactured by the sintering method of ceramic powder. The preform material consists of powder Condea Al2O3 CL 2500, however, as the pore forming the carbon fibers Sigrafil C10 M250 UNS were used. Then ceramic preforms were infiltrated with liquid eutectic EN AC - AlSi12 aluminum alloy. Stereological and structure investigations of obtained composite materials were made on light microscope. The mechanical properties of obtained composite material were investigated in tensile strength test and hardness test. Findings: It was proved that developed technology of manufacturing of composite materials based on the porous ceramic Al2O3 preforms infiltrated by liquid aluminium alloy ensures expected structure and strength Hardness increased about twice compared to the matrix and this process can be used in practice. Practical implications: The presented metal matrix composites fabrication technology allows to obtain locally reinforced elements and near net shape products. Originality/value: Results show the possibility of obtaining the new aluminium matrix composite materials being the cheaper alternative for other materials based on the ceramic fibers.

Słowa kluczowe

PL

kompozyty; preforma ceramiczna; infiltracja; Al2O3

EN

composites; ceramic preforms; infiltration; Al2O3

• Czasopismo: Archives of Materials Science and Engineering
• Rocznik: 2009
• Tom: Vol. 36, nr 1
• Strony: 5-11
• Opis fizyczny: Bibliogr. 20 poz.

Twórcy

autor

Dobrzański, L. A.

autor

Kremzer, M.

autor

Nowak, A.

autor

Nagel, A.

• Division of Materials Processing Technology, Management and Computer Techniques in Materials Science, Institute of Engineering Materials and Biomaterials, Silesian University of Technology, ul. Konarskiego 18a, 44-100 Gliwice, Poland,

Bibliografia

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