First-principles study of fracture mechanism of CNT/Metal interfaces

• Project/Area Number: 24860076
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Single-year Grants
• Research Field: Structural/Functional materials
• Research Institution: National Institute of Advanced Industrial Science and Technology
• Principal Investigator: YUASA Motohiro 独立行政法人産業技術総合研究所, サステナブルマテリアル研究部門, 研究員 (70635309)
• Project Period (FY): 2012-08-31 – 2014-03-31
• Project Status: Completed (Fiscal Year 2013)
• Budget Amount: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000); Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
• Keywords: 異相界面 / ナノ複合材料 / 第一原理計算 / 力学特性 / 破壊

Research Abstract

I investigated the fracture mechanism of Carbon nanotube(CNT)/metal interface using first-principles calculation in order to enhance the reliability of CNT/Metal nanocomposites. As the result, the mechanical properties of CNT/metal interface in this study was affected by misfit strain between CNT and metals as well as their bonding.