Microstructure and mechanical properties of co-continuous metal/ceramic composites obtained from Reactive Metal Penetration of commercial aluminium alloys into cordierite

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• 作者：Diego Manfredi ; Matteo Pavese ; Sara Biamino ; Andrea Antonini ; Paolo Fino ; Claudio Badini
• 关键词：A. Metal– ; matrix composites (MMCs) ; B. Microstructures ; B. Hardness ; E. Liquid metal infiltration
• 刊名：Composites Part A: Applied Science and Manufacturing (Incorporating Composites and Composites Manufacturing)
• 出版年：2010
• 出版时间：May 2010
• 年：2010
• 卷：41
• 期：5
• 页码：639-645
• 全文大小：924 K

文摘

Co-continuous metal/ceramic composites were obtained by the Reactive Metal Penetration (RMP) method. With the aim of components cost reduction, commercial cordierite preforms and standard aluminium infiltrating alloys (1050, 2011 and 7075) were used in the process. Kinetics of the infiltration reaction, microstructure and mechanical properties of the composites were found to be influenced by both quantity and type of alloying elements. In particular, while Young’s modulus remains quite constant, a marked increase in microhardness is observed with 2011 and 7075 alloys, even if to the detriment of flexural strength.