Processing of multi-walled carbon nanotube-reinforced TiNi composites by hot pressed sintering

作者：Feng, Xue; Sui, Jiehe; Cai, Wei^*

来源：Journal of Composite Materials, 2011, 45(15): 1553-1557.

DOI：10.1177/0021998310383734

• carbon nanotubes
• composite materials
• powder technology
• shape memory materials
• sintering

Carbon nanotube (CNT)-reinforced TiNi matrix composites were synthesized successfully by employing elemental powders. Two methods have been used to control the interfacial reaction between CNTs and Ti, which heightened the quality of CNTs (graphitized multi-walled carbon nanotubes (GMWCNTs)) and shortened the time of over-eutectic temperature sintering (two-stage hot pressed sintering). It was found that a major TiNi parent phase with different proportions of intermetallic compound phases had been obtained by varying the second stage sintering temperatures. The specimens with second stage sintering temperature at 1050 degrees C exhibited predominant mechanical properties, and the GMWCNTs retained their original size.

• 出版日期2011-7
• 单位哈尔滨工业大学