Natural diamonds are produced at depths of over 130 kilometers. It has a unique cubic crystal structure. Each carbon atom in a diamond is bonded to four other carbon atoms, making it the hardest natural substance known in the world. How are diamonds formed? Let’s find out!
How to make diamonds by chemical vapor deposition? Chemical vapor deposition (CVD) produces pure, high-performance solid materials. A small diamond, which serves as the “core”, is placed in a vacuum environment to remove impurities and injected with high temperature gases – methane and hydrogen – at 3,000 degrees Celsius, which cracks to form electrically charged …
Diamond Synthesis Method – Chemical Vapor Deposition Read More »
Diamond Synthesis Method Diamonds can be synthesized by gas-phase methods (e.g., PVD or CVD), liquid-phase methods (e.g., hydrostatic, catalytic, or CVD liquid-phase methods), or solid-phase methods. The solid-phase method is the synthesis of diamonds in a material with no fluid. The solid carbon atoms cannot diffuse through the fluid to reorganize into the structure of …
Subtlety Comparison Table of Diamond Micro Powder Standards JB/T7990-1979 GB6966-86 JB/T7990-1998 QB/HH1801-04 Corresponding number 0-0.25 W0.5 0-0.05 M0/0.5 0-0.5 W1 0-1 M0/1 0-1 M0.5/1 0.5-1 0.5-1 M0.5/1.5 0.5-1.5 0.5-1.5 M0/2 0-2 W1.5 0-2 M1/2 1-2 0.5-3 12000 W2.5 1.5-3 M1.5/3 1-3 10000 1.5-3 8000 2-3 7000 W3.5 2-4 M2/4 2-4 6000 W5 2.5-5 M2.5/5 2-5 …
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Subtlety Comparison Table of Synthetic Diamond with Foreign Standards China ISO FEPA America ANSI B74.16-1971 Japan JIS4130-1988 Germany DIN848-1988 Russia OCT9206-80 grit Size Microstructure Ⅰ Microstructure Ⅱ Size Grit Size grit Size Grit Size Microstructure Size Grit Size 40/45 425/355 426 —- 425/355 D426 425/355 40/50 425/300 40/50 425/300 D426 425/355 630/500 630/500 45/50 355/300 …
Subtlety Comparison Table of Synthetic Diamond with Foreign Standards Read More »
Subtlety Comparison Table of Synthetic Diamond with Foreign Standards China ISO FEPA America ANSI B74.16-1971 Japan JIS4130-1988 Germany DIN848-1988 Russia OCT9206-80 Grit Size Subtlety Ⅰ Subtlety Ⅱ Size Grit Size Grit Size Grit Size Subtlety Size Grit Size 40/45 425/355 426 —- 425/355 D426 425/355 40/50 425/300 40/50 425/300 D426 425/355 630/500 630/500 45/50 355/300 …
Subtlety Comparison Table of Synthetic Diamond with Foreign Standards Read More »
The powder has good particle suspension properties, making it less likely to scratch the surface of objects. It can be used to polish optical glass, smartphone glass, and more. Features of the Polishing Powder Application Range Cerium oxide polishing powder specifications Model Product status Particle size (um) Use General green glass Whiteboard optical glass Panel …
Honway Glass Polishing Powder (Cerium Oxide, Cerium-Lanthanum-Praseodymium Series) Read More »
Fluorine rubber and nitrile butadiene rubber were modified by using purified and post-blasted synthetic products (nano-diamond black powder and gray powder). The study shows that although the black powder can increase the hardness of rubber, but the tensile strength and elongation at tear decreased. Nano diamond powder gray powder added to the fluorine rubber, the …
In 1992, Yashchenko and others in the United States used powder metallurgy to make a new type of anti-wear material, which is made by mixing copper-zinc and copper-tin powders with nano-diamond powder in a certain proportion by compaction, and then sintered in hydrogen gas. This new material can be used in internal combustion engine cylinder …
New wear-resistant materials containing nano diamond powder Read More »
（1）Nano Diamond Powder Composite Coating Nano Diamond Powder Composite Coating Technology is one of the key technologies for product manufacturing. Through surface coating, the surface of the product can be protected by a protective layer of controlled composition and organization, which significantly improves the service life and reliability of the product. For example: marine platforms, …
