Fabrication and Corrosion Resistance of SiC-coated Multi-walled Carbon Nanotubes

作     者：Ning Song Hong Liu Yongtao Yuan Xing Li Jingzhong Fang 

作者机构：Optical and Electronic Institute Chinese Academy of Sciences Chengdu 610209 China 

出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)

年 卷 期：2013年第29卷第12期

页      面：1146-1150页

核心收录：

学科分类：07[理学] 070205[理学-凝聚态物理] 0817[工学-化学工程与技术] 0806[工学-冶金工程] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0802[工学-机械工程] 0702[理学-物理学] 0801[工学-力学（可授工学、理学学位）] 

基　　金：supported by the Light of Western(No.A09K009) 

主　　题：Silicon carbide Coating Multi-walled carbon nanotubes Corrosion resistance 

摘      要：Multi-walled carbon nanotubes （MWNTs） were coated with nanometer sized SiC layer by magnetron sputtering, and their corrosion resistances in oxygen and gaseous silicon were studied, respectively. X-ray diffraction （XRD） reveals that the as-coated MWNTs are comprised of the amorphous SiC and the phase could transfer from amorphous to polycrystalline SiC by annealing at 1360 °C. Scanning electron microscopy （SEM） observation indicates that SiC nanoparticles are uniformly coated on the MWNTs, forming a continuous SiC coating. Thermogravimetric analysis （TGA） confirms that the onset temperature of oxidation increases from 540 to 700 ~C with the SiC coating. The morphologies of non-coated and SiC-coated MWNTs after corrosion by oxygen and gaseous silicon were also characterized by SEM. The results revealed that SiC coating could protect MWNTs from the corrosion with qaseous silicon effectivelv.