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1.发明授权公开(公告)号：US07115325B2
公开(公告)日：2006-10-03
申请号：US10231441
申请日：2002-08-30
CPC分类号： C25D15/02 , Y10S428/935 , Y10T428/12493 , Y10T428/12625 , Y10T428/25
摘要： An aqueous suspension liquid of finely divided diamond particles comprising 0.05 to 160 parts by weight of a finely divided diamond particles in 1000 parts of water, wherein; (i) the finely divided diamond particles have an element composition consisting mainly of 72 to 89.5% by weight of carbon, 0.8 to 1.5% of hydrogen, 1.5 to 2.5% of nitrogen, and 10.5 to 25.0% of oxygen; (ii) and, almost all of said diamond particles are in the range of 2 nm to 50 nm in diameters thereof (80% or more by number average, 70% or more by weight average), (iii) and, said finely divided diamond particles exhibit a strongest peak of the intensity of the Bragg angle at 43.9° (2θ±2°), strong and characteristic peaks at 73.5° (2θ±2°)and 95° (2θ±2°), a warped halo at 17° (2θ±2°), and no peak at 26.5°, by X-ray diffraction (XRD) spectrum analysis using Cu-Kα radiation when dried, (iv) and, specific surface area of said diamond particles when dry state powder is not smaller than 1.50×105 m2/kg, and substantially all the surface carbon atoms of said particles are bonded with hetero atoms, and the total absorption space of said powder is 0.5m3/kg or more, when dried. The diamond particles are very active and dispersible in aqueous liquid in stable, and have essentially same mechanical properties as that of usual diamonds.
摘要翻译： 一种细碎金刚石颗粒的水性悬浮液，其包含0.05至160重量份在1000份水中的细碎金刚石颗粒，其中： （i）细碎金刚石颗粒具有主要由碳原子数为72〜89.5重量％，氢为0.8〜1.5％，氮为1.5〜2.5％，氧为10.5〜25.0％的元素组成。 （ii），并且几乎所有的所述金刚石颗粒的直径在2nm至50nm的范围内（数均为80％或更多，平均为70％或更多），（iii），所述细分 金刚石颗粒在43.9°（2θ±2°）处呈现出最强的布拉格角强度峰值，73.5°（2θ±2°）和95°（2θ±2°）处的强和特征峰， 通过使用Cu-Kalpha辐射干燥时的X射线衍射（XRD）光谱分析，（iv）和当干态粉末时所述金刚石颗粒的比表面积，在17°（2θ±2°），26.5°没有峰 不小于1.50×10 5 / kg，并且所述颗粒的基本上所有的表面碳原子与杂原子键合，并且所述粉末的总吸收空间 干燥时为0.5m 3 / kg以上。 金刚石颗粒在水性液体中是非常活泼和可分散的，并且具有与通常的钻石基本上相同的机械性能。
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