Multi-wall carbon nanotubes reinforced aluminum composites synthesized by hot press sintering and squeeze casting

作者：Zhang Xue xi; Yang Li; Deng Chun feng; Wang De zun

来源：Transactions of Nonferrous Metals Society of China, 2006, 16: S1465-S1469.

• metal matrix composites (MMCs)
• carbon nanotubes (CNTs)
• mechanical properties
• aluminum alloy
• microstructure

Multi-wall carbon nanotubes (MWNTs) have high mechanical properties and are considered a kind of realistic reinforcement for polymers, ceramics and metals. The hot press sintering and squeeze casting were adopted to synthesize MWNTs reinforced aluminum composites. In hot press sintered MWNTs/Al composites, MWNTs agglomerates distribute along aluminum powders and have low bonding strength with aluminum. But MWNTs agglomerates distribute evenly in the squeeze cast MWNTs/Al composites. Some dispersed nanotubes bond well with aluminum matrix and few dislocations can be found in the nanotube areas, which implies little thermal residual stress in squeeze cast MWNTs/Al composites. This indicates that the strengthen mechanisms in nanometer sized MWNTs/Al composites may be different from that in micrometer sized whisker composites.

• 出版日期2006-12
• 单位哈尔滨工业大学