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Journal of Composite Materials
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Microstructure, Hardness, and Bending Strength of Carbon Nanotube—Iron Aluminide Composites

L.X. Pang

Key Laboratory for Liquid Structure and Heredity of Materials of State Education Ministry, and Key Laboratory for Engineering Ceramics of Shandong Province Shandong University, Jinan 250061, PR China, laixuepang{at}hotmail.com

K.N. Sun

Key Laboratory for Liquid Structure and Heredity of Materials of State Education Ministry, and Key Laboratory for Engineering Ceramics of Shandong Province Shandong University, Jinan 250061, PR China

S. Ren

Key Laboratory for Liquid Structure and Heredity of Materials of State Education Ministry, and Key Laboratory for Engineering Ceramics of Shandong Province Shandong University, Jinan 250061, PR China

C. Sun

Key Laboratory for Liquid Structure and Heredity of Materials of State Education Ministry, and Key Laboratory for Engineering Ceramics of Shandong Province Shandong University, Jinan 250061, PR China

J.Q. Bi

Key Laboratory for Liquid Structure and Heredity of Materials of State Education Ministry, and Key Laboratory for Engineering Ceramics of Shandong Province Shandong University, Jinan 250061, PR China

Iron aluminide (Fe3Al) composites reinforced with ~3 wt% of carbon nanotube (CNT) were fabricated by hot press consolidation. Ambient-temperature mechanical properties of the iron aluminide—CNT composites were determined. The hardness, compressive yield strength, and bending strength hardness of composites were higher by 63%, 1%, and 5%, respectively. Microscopic examination of the composite showed the added CNTs still keep their tubular structure. The preliminary results on the processing and improvement in mechanical properties of CNT-reinforced iron aluminide matrix composites are being reported here for the first time.

Key Words: intermetallic matrix compounds • carbon nanotube • mechanical properties.

Journal of Composite Materials, Vol. 41, No. 16, 2025-2031 (2007)
DOI: 10.1177/0021998307074122
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