Production of Fullerene-Metal Alloys by MA

本工作旨在利用分子或纳米晶C60对金属材料进行“溶液”或“弥散”强化。将晶体C60(20vol.%)和铜粉在氮气气氛下密封，并在氧化锆锅中用直径10 mm的相同材料的球球磨。X-射线衍射仪分析表明，球磨过程中C60晶体消失，铜的晶格间距增大。透射电子显微镜分析表明，C60由直径3 mm的球体组成，在370 Mpa的压力下压制成直径10 mm、高度1 mm的圆盘状。在100ﾟC到700ﾟC的温度范围内进行退火热处理，128h后用透射电子显微镜观察到C60相。含5vol.%和20vol.%C60的铜片在600ﾟC下热处理后的维氏硬度约为200。

The present work aims to make use of "solution" or "dispersion" strengthening of metallic materials by molecules or nanocrystalline C60.Crystalline C60 (20 vol.%) and copper powders were sealed under nitrogen atmosphere and milled in a zirconia pot with balls of the same material 10mm in diameter. X-ray diffraction data indicate that C60 crystals disappear and the lattice spacing of copper increasses by MA.A transmission electron microscopy (TEM) shows that C60 changes into graphite or amorphous diamond-like phase.The milling was made by balls 3mm in diameter and the powders were compacted into disc 10mm in diameter and 1mm in height under 370Mpa. The discs were annealed between 100ﾟC and 700ﾟC.The C60 phase is in this case observed by TEM after 128h MA.The copper discs with 5vol.% as wells as 20vol.% C60 show Vickers hardness of about 200 after annealing at 600ﾟC.In the case of milling of aluminum with C60, the compaction by the same method was unsuccessful.The results indicate that metal-fullerene alloys can be made by selecting metals and milling conditions.