中國有色金屬學報(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 19 No. 5 October 2009 |
（1. Department of Civil Engineering, Shandong Jiaotong University, Ji’nan 250023, China;
2. School of Materials Science and Engineering, Shandong University, Ji’nan 250061, China）
Abstract:Analyses on the stress in the carbon nanotube/Fe3Al composites were performed. The biphase interface valence electron structure was established on the basis of Pauling’s nature of the chemical bond. The stress occurs by the huge interface electron density difference, which will block the Fe3Al grain agglomeration and growth. With the X-ray diffractions, the calculated magnitude of compressive stress existing in the CNT/Fe3Al interface is 0.38 GPa. The experimental result verifies that the stress has a positive effect on the enhancement of mechanical properties of composite.
Key words: interface stress; CNT/Fe3Al composite; interface valence electron structure
