Polycrystalline Diamond Abrasives

1 / 5 Polycrystalline Diamond - Dyed 2 / 5 Polycrystalline Diamond - Thicker High Viscosity 3 / 5 Polycrystalline Diamond - Low Viscosity for Dispensers 4 / 5 Polycrystalline Diamond Paste 5 / 5 Polishing Lubricants

Polycrystalline vs. Monocrystalline

Polycrystalline diamond as compared to synthetic and natural 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 shaped
• Hexagonal microcrystallites (equally hard in all directions)
• Extremely rough surface (more cutting points)
• Surface area 300% greater than monocrystalline diamond
• No abrasion-resistant directionality (abrasion independent of particle orientation)

Water-Based Diamond Suspensions

• Higher concentration / environmentally friendly
• Ideal for reducing surface contamination
• Efficient heat dissipation during polishing

High Viscosity Diamond Suspensions

• Recommended for manual dispensing
• Reduces splashing and provides better control
• Preferred for high load polishing applications

Low Viscosity Diamond Suspensions

• Recommended for automated dispensing
• Ensures uniform distribution across the surface
• Ideal for fine polishing on soft materials

Diamond Paste

• For non-aqueous polishing with an alcohol lube
• Perfect for polishing hard, brittle materials
• Available in different micron sizes for precision work

Lubricants

• For extending / lubricating diamond abrasives
• Improves surface finish and reduces friction
• Compatible with both water and alcohol-based suspensions

Polycrystalline Diamond

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