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采用快速凝固技术制备了碳纳米管 /铁磷非晶复合材料 ,并对其组织、力学性能和热稳定性进行了研究。检测结果表明 ,碳纳米管在非晶基体中的弥散存在 ,使得非晶抗拉强度提高 ,晶化激活能增加 ,晶化特征温度明显提高。加入 2 W/%碳纳米管 ,使铁磷非晶的室温抗拉强度提高了 1 2 0 % ,晶化激活能增加了约 40 % ,晶化开始温度提高了约 1 0 0 K。此外 ,在温度高于其晶化温度约 2 0 0 K时 ,碳纳米管和非晶基体界面间发生了固相反应。
Carbon nanotubes / Fe-P amorphous composites were prepared by rapid solidification technique, and their microstructure, mechanical properties and thermal stability were studied. The results show that the dispersion of carbon nanotubes in the amorphous matrix increases the amorphous tensile strength, crystallization activation energy and crystallization temperature significantly increased. The addition of 2 W /% carbon nanotubes increased the room temperature tensile strength of Fe-P by 120%, the activation energy of crystallization by about 40% and the crystallization start temperature by about 100 K. In addition, at a temperature higher than its crystallization temperature of about 200K, a solid-phase reaction takes place between the interface of the carbon nanotubes and the amorphous matrix.