Aluminium AlSi12 alloy matrix composites reinforced by mullite porous preforms: Verstärkung von Verbundmaterialien mit Aluminium AlSi12‐Legierungsmatrix durch poröse Presslinge aus Mullit. Issue 4 (May 2015)

• Record Type: Journal Article
• Authors: Tomiczek, B.; Kujawa, M.; Matula, G.; Kremzer, M.; Tański, T.; Dobrzański, L. A.
• Other Names: Öchsner Andreas guestEditor.; Altenbach Holm guestEditor.
• Is Part Of: Materialwissenschaft und Werkstofftechnik. Volume 46:Issue 4/5(2015:May)
• Page Start: 368
• Page End: 376
• Publication Date: 2015-05
• Subjects: Metallmatrix‐Verbundmaterialien -- Mullit -- AlSi12 -- Gasdruckinfiltration; Metal matrix composites -- mullite -- AlSi12 -- gas pressure infiltration; Materials -- Periodicals; Materials -- Testing -- Periodicals; 620.1
• DOI: 10.1002/mawe.201500411
• Languages: English
• ISSNs: 0933-5137

Abstract

Abstract : The purpose of this work was to elaborate the method of manufacturing of composite materials based on porous mullite preforms infiltrated by AlSi12 aluminium alloy. The process of manufacturing the metal matrix composites by pressure infiltration is the subject of many scientific studies because it is characterized by high efficiency and allows for accurate mapping of elements of shape and surface of elements, while the structure and properties of the composites are determined by ceramic skeletons. The eutectic aluminium alloy AlSi12 was used as a matrix while as a reinforcement were used ceramic preforms fabricated by sintering of halloysite nanotubes (HNT) powder with an addition of carbon fibres as pore forming agents. The observations of the structure were made on the light microscope and in the scanning electron microscope. The developed technology of manufacturing of composite materials with the pore ceramic mullite infiltration ensures the expected structure and can be used in practice. The composite materials made by the developed method can find application as an alternative material for elements fabricated from light metal matrix composite material reinforced with ceramic fibrous preforms.