Bond types and electron structure of TiC-xAl2O3/Fe cermets prepared by ilmenite

作者：Zou Zheng Guang^*; Wu Yi; Shen Yu Fang; Long Fei

来源：Journal of Northeastern University, 2010, 31(SUPPL. 1): 96-100.

• Bond type
• Carbon reduction
• Dynamics simulation
• Electron structures
• First-principles
• In-situ
• Strength and toughness

Condensed TiC-xAl2O3/Fe (x=0, 0.25, 0.5, 0.75, 1) cermets were prepared by in-situ aluminium-carbon reduction using Ilmenite as the raw material. The bond types, electron structure and properties of the composite were calculated through first principle dynamics simulation. Results showed the strengths of ionic and covalent bond in the composite are weaker than those in TiC/Fe due to Al2O3 addition, and flexual strength and toughness of the TiC-xAl2O3/Fecermet significantly decrease with increasing the content of Al2O3.

• 出版日期2010
• 单位桂林理工大学; 广西大学