✨ Precision Abrasive & Thermal

Diamond Powders

Precision synthetic CVD diamond powders from 0.1 µm to 500 µm. Available in blocky and friable crystal morphologies, with uncoated, nickel, titanium, and resin coating options. For CMP polishing, thermal interface materials, lapping, and precision cutting tools.

0.1–500 µm
Particle Size Range
10 Mohs
Hardness
700°C
Thermal Stability
Coated / Raw
Surface Variants
Technical Specifications

Complete datasheet.

Particle Size Range0.1 µm – 500 µm
Particle Size DistributionNarrow D50 ± 15% (standard) / ± 5% (tight)
Crystal MorphologyBlocky (monocrystalline) · Friable (polycrystalline)
Hardness10 Mohs — hardest natural material
sp³ Carbon Content>98% (Raman verified)
Thermal Conductivity (bulk)1,000–2,000 W/m·K
Thermal Stability (air)Stable to 700°C
Coating OptionsUncoated · Ni · Ti · Resin · Silane
Specific Surface Area0.5 – 30 m²/g (size-dependent)
Packing Density0.4 – 1.2 g/cm³ (morphology-dependent)
Chemical ResistanceInert to all acids/bases at RT
Minimum Order1 gram (R&D) · 100 g (production)

Standard Size Grades

All grades available in blocky or friable morphology. Custom D50/D90 specifications on request.

Grade NameD50 (µm)D90 (µm)Primary Use
Nano-1000.10.25Chemical mechanical polishing (CMP), nano-lapping
Sub-Micron 5000.51.0Final polishing of optical surfaces, wafer CMP
Standard 11.02.0Precision lapping, diamond slurry formulations
Standard 5510General-purpose lapping, TIM filler
Medium 151525Thermal interface materials, rough lapping
Medium 505075Cutting tool coating, grinding wheels
Coarse 150150200Wire saw, resin-bonded tools, drilling
Coarse 500500650Single-pass cutting, stone/glass processing
Surface Coatings

Right coating for every process.

Standard
Uncoated
Raw diamond surface. Maximum thermal performance. For TIM applications, high-temperature processes, and oil-based slurry systems.
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Most Popular
Nickel Coated
Electroless Ni coating (30–55% by weight) improves retention in resin and metal-bonded tools. Enhanced thermal and electrical conductivity vs uncoated.
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High-Temp
Titanium Coated
Ti coating (25–40% by weight) for high-temperature brazed tools and high-bond-strength applications. Stable to 900°C in inert atmosphere.
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Polymers
Resin / Silane
Organic surface treatment for improved dispersion in polymer matrices, TIM pastes, and water-based slurries. Reduced agglomeration.
Use Cases

Harder. Faster. Cooler.

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CMP Polishing
Sub-micron diamond slurries achieve surface roughness <0.2 nm Ra on silicon carbide, sapphire, and diamond wafers — the required finish for epitaxial device fabrication.
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Thermal Interface Materials
Diamond powder filler (5–50 µm) in silicone, epoxy, or phase-change matrices boosts TIM thermal conductivity from <2 W/m·K to 10–20 W/m·K at 50% volume fraction.
Cutting & Grinding Tools
Nickel-coated diamond in resin or metal-bonded grinding wheels, wire saws, and drill bits. 5–10× higher tool life vs CBN for hard ceramic and composite machining.
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Precision Lapping
Diamond lapping compounds (1–50 µm) for hard disk drive heads, optical flats, gauge blocks, and ceramic bearings. Consistent stock removal with minimal surface damage.
What Ships With Your Order

Every batch.
Analytically confirmed.

Diamond powder quality directly impacts process yield. We document every batch with the data your process and QC team needs.

Particle size distribution report — laser diffraction D10/D50/D90 values
SEM morphology images confirming crystal shape and absence of agglomerates
Raman spectroscopy confirming sp³ content and sp² (graphitic) content
Coating weight measurement (thermogravimetric analysis) for coated grades
Bulk density measurement (tapped and untapped)
Certificate of Analysis with batch number, production date, and all measured properties
Custom Grades Available

Specify your particle size.

Tell us your size, morphology, coating, and quantity — from 1g R&D samples to kilogram production runs. We quote within 24 hours.