The microstructures of in-situ synthesized TiC by Ti-CNTs reaction in Cu melts

• Autorzy: Xu Xuexia , Wang Yong , Wang Qing , Dong Guozhen , Li Wenbin , Li Guowei , Lv YaDong , Zhang Jin , Ding Haimin

Identyfikatory

DOI

10.2478/msp-2022-0018

• Języki publikacji: EN

Abstrakty

EN

In order to study the influence of the carbon nanotubes (CNTs) as a source of carbon on the microstructure of in-situ synthesized TiC in Cu melts, CNTs and Ti powders were introduced into melted Cu to prepare TiC-reinforced Cu matrix composites. The influence of Ti/C ratio and Si on the microstructures and properties of the composites were also examined. It is found that CNTs can be effectively wetted through the Ti-C reaction and successfully introduced into Cu melt to synthesize TiC. In examining the changes in Ti/C ratio, it was found that an increase in the Ti content may result in the decrease of TiC agglomeration and improvement of TiC dispersion, while simultaneously causing an increase in the TiC particle size. Besides, while the addition of Si into Ti-CNTs mixture can also improve the distribution of TiC, the effect is weak compared with that of increasing the content of Ti. It was also found that the highest hardness (238.8 HV) is achieved by the Cu-Ti-C composite with the highest Ti/C ratio, while the electrical conductivities of all the prepared composites are relatively low, which should be due to the insufficient reaction between Ti and CNTs.

Słowa kluczowe

EN

Cu matrix composites; microstructure; TiC; CNTs; carbon nanotubes

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2022
• Tom: Vol. 40, No. 1
• Strony: 145--158
• Opis fizyczny: Bibliogr. 23 poz., rys.

Twórcy

autor

Xu Xuexia

• State Grid Hebei Electric Power Research Institute, Shijiazhuang 050021, PR China
• State Grid Hebei Energy Technology Service Co., Ltd, Shijiazhuang 050021, PR China

autor

Wang Yong

• State Grid Hebei Electric Power Research Institute, Shijiazhuang 050021, PR China
• State Grid Hebei Energy Technology Service Co., Ltd, Shijiazhuang 050021, PR China

autor

Wang Qing

• State Grid Hebei Electric Power Research Institute, Shijiazhuang 050021, PR China
• State Grid Hebei Energy Technology Service Co., Ltd, Shijiazhuang 050021, PR China

autor

Dong Guozhen

• State Grid Hebei Electric Power Research Institute, Shijiazhuang 050021, PR China
• State Grid Hebei Energy Technology Service Co., Ltd, Shijiazhuang 050021, PR China

autor

Li Wenbin

• State Grid Hebei Electric Power Research Institute, Shijiazhuang 050021, PR China
• State Grid Hebei Energy Technology Service Co., Ltd, Shijiazhuang 050021, PR China

autor

Li Guowei

• State Grid Hebei Electric Power Research Institute, Shijiazhuang 050021, PR China
• State Grid Hebei Energy Technology Service Co., Ltd, Shijiazhuang 050021, PR China

autor

Lv YaDong

• State Grid Hebei Electric Power Research Institute, Shijiazhuang 050021, PR China
• State Grid Hebei Energy Technology Service Co., Ltd, Shijiazhuang 050021, PR China

autor

Zhang Jin

• School of Energy, Power and Mechanical Engineering, North China Electric Power University, Baoding 071003, PR China

autor

Ding Haimin

• School of Energy, Power and Mechanical Engineering, North China Electric Power University, Baoding 071003, PR China

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