Polycrystalline Diamond Powder

"Product performance：Polycrystalline diamond as compared to synthetic monocrystalline diamond provides better surface finishes and higher removal rates for metallographic specimen preparation. The features and advantages of polycrystalline diamond include the following:  Higher cutting rates  Very uniform surface finish  More uniform particle size distribution  Higher removal rates (self sharpening abrasives)  Harder/tougher particles  Blocky shape  Hexagonal microcrystallites (equally hard in all directions)  Extremely rough surface (more cutting points)  Surface area greater than monocrystalline diamond  No abrasion-resistant directionality (abrasion independent of particle orientation) Hold Diamond have 3 kinds of polycrystalline diamond ,HDPG-10 has the highest friability, and HDPG-30 has the highest toughness. "