Advanced uniaxially CNT reinforced Al matrix composite for electric wires

2016 Fiscal Year Final Research Report

• Project/Area Number: 26289267
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Material processing/Microstructural control engineering
• Research Institution: Tohoku University
• Principal Investigator: KAWASAKI AKIRA 東北大学, 工学(系)研究科(研究院), 教授 (50177664)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: カーボンナノチューブ / 複合材料 / 界面反応相 / 均一分散 / 軽量高強度

Outline of Final Research Achievements

Carbon nanotube (CNT)-Al composite has attracted extensive attention due to the extraordinary mechanical, thermal and electrical properties of CNTs. Carbon nanotube (CNT)-Al composite has attracted extensive attention due to the extraordinary mechanical, thermal and electrical properties of CNTs. Unfortunately, the difficulty in achieving a uniform CNT dispersion and the imperfect interfacial bonding severely hinder its development. For strengthening the interface, it is reported that formation of Al4C3 is a good way for improving the load transfer. The results showed the tensile strengthen of CNT-Al composites really increased slightly after heat treatment. On the basis of the investigation on the thermal expansion behavior of CNT-Al composites, the effect of Al4C3 formation on the load transfer was discussed. It is found the coefficient of thermal expansion (CTE) of the composites decreased with increasing CNT concentrations due to the constraining effect of CNTs.

Free Research Field

工学