Patent ID: 7115325
Filing Date: 2006-10-03
Classification: C25D,Y10S,Y10T

Abstract:
1. A metallic film having 0.1 to 350 μm thickness and comprising a diamond powder 0.1 to 2.0% by weight therein, wherein, (i) said diamond powder 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 of all particles of said diamond powder 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 diamond powder exhibits 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, (iv) and, the specific surface area of said diamond powder when dry state is not smaller than 1.50×10