The JCB JPDM series of polycrystalline diamond Micro-powder is a nanodiamond aggregate synthesized under transient ultra-high pressure and high temperature through explosion, similar to the black diamond found in a small number of meteorites in nature. It is a poly-crystal composed of cubic diamond and hexagonal diamond, characterized by high toughness, high self-sharpening properties, and high hardness. As a new type of grinding material, it offers unique advantages in sapphire grinding and processing that other materials do not possess. Its grinding efficiency is 2 to 4 times that of single crystal diamond, and it does not cause scratches, achieving a high surface finish. It has wide-ranging applications in high-tech fields such as electronics, aerospace, and aviation.
Polycrystalline diamond micro-powder is a nano-diamond aggregate synthesized through transient ultra-high pressure and high-temperature explosion, similar to the black diamond found in a few meteorites in nature. It is a polycrystalline material composed of cubic diamond and hexagonal diamond, characterized by high toughness, high self-sharpening ability, and high hardness. As a new type of abrasive material, it has unique advantages in sapphire grinding and processing compared to other materials. Its grinding efficiency is 2 to 4 times higher than that of single-crystal diamond, and it does not produce scratches, resulting in high surface finish. It has wide applications in high-tech fields such as electronics, aerospace, and aviation.
JPDM, polycrystalline diamond powder, is a nano-diamond polymer synthesized by transient ultra-high pressure and high temperature explosion. It is similar to the black diamond found in a small number of meteorites in nature. It is a polycrystalline composed of cubic diamond and hexagonal diamond, with the characteristics of high toughness, high self-sharpening and high hardness. As a new type of grinding material, it has advantages that other materials do not have in sapphire grinding and processing. The grinding efficiency is 2 to 4 times that of single crystal diamond, and it will not produce scratches and has high finish. It is widely used in high-tech fields such as electronics, aerospace, and aviation. Due to the continuous expansion of the application fields of new technologies in industries such as LED in recent years, the use of polycrystalline diamond powder has increased significantly and the demand has continued to increase.
A. Detonation synthetic polycrystalline diamond powder has the polycrystalline structure of expensive and rare black natural diamond, with black-gray color, metallic luster, good toughness and automatic cutting edge.
B. Compared with impact synthetic static pressure or natural single crystal diamond, silicon oxide, corundum and other abrasives, the grinding efficiency of detonation synthetic polycrystalline diamond is 2 to 4 times higher.
C. The grinding accuracy of polycrystalline diamond is unprecedentedly improved.
a. When using 2 to 4μm polycrystalline diamond powder to grind work-pieces, R < 1.6nm.
b. When using 0 to 0.5μm polycrystalline diamond powder to grind work-pieces, Ra = 1.3 to 1.4nm.
c. When using 0 to 0.125μm polycrystalline diamond powder to grind work-pieces, Ra < 0.1nm.
D. Due to the spherical shape of the polycrystalline diamond surface, the surface of the ground work-piece will not leave scratches, thereby improving the grinding yield.
E. polycrystalline diamond powder can also be plated on the inner wall of work-pieces (such as cylinders) through chemical plating, and its wear resistance is better than any other material.
Applications of Polycrystalline Diamond Micro-powder:
A. Polishing sapphire, silicon, ceramics, metals, etc.
B. Processing magnetic head materials, anti-magnetic film (MR), multi-layer film, sputtering film, molecular beam epitaxy (MBE), ferrite and printed boards.
C. Processing optical fiber connectors and other products that require a certain amount of light wave transmission.
| Grade Particle Size | JPDM | Median D50 (μm) |
| 0-0.15 | Y | 0.07 |
| 0-0.2 | Y | 0.1 |
| 0-0.25 | Y | 0.125 |
| 0-0.5 | Y | 0.25 |
| 0-1 | Y | 0.5 |
| 0-2 | Y | 1 |
| 1-3 | Y | 2 |
| 2-4 | Y | 3 |
| 2-6 | Y | 4 |
| 3-7 | Y | 5 |
| 4-8 | Y | 6 |
| 5-10 | Y | 7 |
| 6-10 | Y | 8 |
| 6-12 | Y | 9 |
| 8-16 | Y | 14 |
| 12-22 | Y | 17 |
