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以毛竹为原材料,在1000℃碳化后制得竹炭生物模板,采用气相SiO碳热还原反应在生物模板表面制备了SiC纳米线,利用XRD、SEM和TEM等测试手段对SiC纳米线的物相组成、微观形貌进行了分析,探讨了SiC纳米线在生物模板表面上的生长机理.结果表明:SiC纳米线的主晶相为β-SiC,直径和长度分别为20～70nm和10～20μm,大多数SiC纳米线呈直线状,且表面光滑.SiC纳米线沿[111]方向生长.
Using bamboo as raw material, carbonized bamboo charcoal template was prepared after carbonization at 1000 ℃. SiC nanowires were prepared on the surface of biological template by gas-phase SiO carbothermal reduction. The phase composition of SiC nanowires was characterized by XRD, SEM and TEM. , The morphology of the SiC nanowires was investigated and the growth mechanism of the SiC nanowires on the surface of the biomimetic template was discussed.The results show that the main crystal phase of the SiC nanowires is β-SiC with diameters and lengths of 20-70 nm and 10-20 μm, respectively, Most of the SiC nanowires are linear and have smooth surfaces.SiC nanowires grow along the [111] direction.