特性爆炸纳米多晶金刚石及其新的理论技术(上)

Explosive nanometer characteristic polycrystalline diamond and its new theoretical technology

文章对爆炸纳米多晶金刚石的结构形貌特性作了充分全面检测描述:X衍射曲线,Raman光谱曲线,X射线小角散射粒度测定,AFM,SEM,TEM电镜分析以及化学后处理后的各种成份含量分析。爆炸纳米多晶金刚石有三种颗粒形态:"晶核","原生聚晶颗粒"和"聚合聚晶颗粒"。"原生聚晶颗粒"呈球形由"晶核"集聚而成,但再不能用现代物理化学手段将其分离开来;"聚合聚晶颗粒"是由许多"原生聚晶颗粒"集聚而成的微米和亚微米级颗粒。"原生聚晶颗粒"的粒度是这种纳米多晶金刚石的特性显示,文中显示的"原生聚晶颗粒"粒度在50nm上下。开发了二种爆炸技术:成核爆炸技术和成核-聚合结合爆炸技术。由后者制作出的金刚石粉是最佳的抛光磨料,提出了有关爆炸纳米多晶金刚石的新理论。

This paper makes the ample and all-round gauging inspections, such as XRD, Raman spectrum curve, SAXS, AFM, SEM, TEM and the content analysis for various compositions after post-chemical treatment to describe the structure-morphological characteristics of the explosive nanometer polyerystalline diamond. The explosive nano- meter polycrystalline diamond has three grain-formations： crystal nucleus, primary crystalline grain and polymeric polycrystalline grain. The primary polycrystalline has by poly- grain emerged sphere like, polymerized from crystal nucleus, but it can＇t be separated again modern physicochemical method. The polymeric polycrystalline grain polymerizes from many primary polycrystalline grain size of primary polycrystalline crystalline diamond, which is about grains, possesses micron and submicron size. The grains shows the speciality of the nanometer poly- 50 nm in this paper. In the paper, the authors put forward the new theory about explosive nanometer polycrystalline diamond and have developed two explosive techaological methods： the ex- plosive technology for nucleus formation and the explosive technology for nucleus forma- tion combined with polymerization. The diamond powder made by later method is the most excellent grinding abrasives.