摘要
采用碳纳米纤维管,WO3和I2为原料对碳纳米管模板法制备碳化钨纳米棒的可行性进行了研究,并对其制备原理进行了分析,提出了因碳纳米管产生的隧道效应,挥发性钨源被不断吸入纳米管内并与管壁发生碳化反应生成碳化钨棒的反应模型;在实验结果的基础上,进一步提出了纳米棒强化的新概念硬质合金的制备新方案。
Using carbon nanofibers with open ends, WO3 and I2 as starting materials, the experiment of preparing tungsten carbide nanorods is carried out and the principle of carbon nanotube template-mediated growth is analyzed. It is pointed out that it is because of the tunnel effect of nanotube that volatile tungsten source is drawn into the tube continuously and then reacts with the wall of carbon nanotube, as a result, tungsten carbide nanorods can be formed. Based on the experiment result, how to prepare nanorods strengthened new concept cemented carbide is discussed.
出处
《硬质合金》
CAS
2003年第4期193-196,共4页
Cemented Carbides
基金
国家留学基金委资助。
