DP polycrystalline synthetic micron diamond powder, precision size range

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Description

DP micron diamond powder is distinguished for its outstanding performance and reproducibility in application. DP diamond has the highest Performance Index rating of all diamond types. DP diamond is available in precision-graded sizes as diamond powder, as ready-to-use diamond suspension and as Liquid Diamond.


Particle strength: The high toughness of polycrystalline diamond tolerates three times higher operating pressures than monocrystalline diamond. This allows for significantly higher material removal rates compared to other diamond types.


Self-sharpening: During the lapping process, the applied pressure causes single crystallite grains to break away from the particle. Fracturing exposes new, sharp cutting edges. This self-sharpening of the particle allows for continuously high abrasion rates.


Narrow tolerance: The narrow tolerances in particle size distribution guarantee consistent lot-to-lot performance in the application.

This material data has been provided by Pureon.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

Ashby charts

Properties

General

PropertyValueComment

Density

3.51 g/cm³

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Particle size range

30 µm

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Please refer to the technological properties section below for more detailed (narrow) particle size ranges available.

Mechanical

PropertyValue

Hardness, Mohs

10 [-]

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Thermal

PropertyValue

Coefficient of thermal expansion

1.1e-06 1/K

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Thermal conductivity

600 - 4000 W/(m·K)

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Electrical

PropertyValue

Band gap

6 eV

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Electrical resistivity

1e+12 - 1e+19 Ω·m

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Optical

PropertyValue

Refractive index

2 [-]

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Chemical properties

PropertyValueComment

Carbon

99.5 %

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min. purity

Technological properties

Property
Application areas

DP diamond is used in lapping and polishing applications with most demanding requirements on performance and consistency. Typical applications include lapping and polishing of sapphire, synthetic gemstones, ceramics, tungsten carbide, soft and hard metals and composite materials.

Color

Dark gray

Crystal structure

Polycrystalline

Gradings

Precision size range: A narrow particle size distribution maximizes the amount of particles of the same size while fine and coarse particles are minimized. Combined with a clearly defined upper size limit, this feature allows for both high process reproducibility and superior results in surface quality.

Morphology

Rough particle surface: The micro-structured, rough particle surface provides numerous contact points between diamond particles and the work piece. This feature ensures high material removal rates even in processes with low specific pressure, such as polishing processes on soft cloths or pads.

Particle size range table

Micron Size
µm
Median (D50)
µm
Median-Tolerance
µm
Upper Limit (D99)
µm max.
DP   (0-0.03)0.0180.014-0.0220.06
DP   (0-0.05)0.0250.02-0.030.09
DP   (0-0.1)0.050.04-0.060.15
DP   (0-0.15)0.0750.06-0.090.20
DP   (0-0.2)0.090.07-0.1100.25
DP   (0-0.25)0.1250.105-0.1450.33
DP   (0-0.35)0.180.155-0.2050.42
DP   (0-0.5)0.210.180-.02400.53
DP   (0.25-0.5)0.350.310-0.3900.70
DP   (0.25-0.75)0.50.450-0.5500.90
DP   (0.5-1)0.710.65-.0771.30
DP   (0.75-1.25)1.000.95-1.051.70
DP   (1-1.5)1.191.13-1.252.00
DP   (1-2)1.421.35-1.492.30
DP   (1.25-2.25)1.691.61-1.772.60
DP   (1.5-2-5)21.9-2.13.00
DP   (1.5-3)2.392.27-2.513.50
DP   (2.25-3.5)2.842.7-2.984.10
DP   (2.5-4)3.373.2-3.544.90
DP   (3-5)4.023.82-4.225.80
DP   (4-6)4.874.63-5.116.80
DP   (4.5-7)5.75.42-5.987.90
DP   (5.5-8)6.86.46-7.149.20
DP   (6-10)8.17.70-8.5010.9
DP   (8-12)9.69.12-10.0812.9
DP   (10-16)12.511.9-13.117.9
DP   (10-20)1514.2-15.821.5
DP   (15-25)2019.0-21.026.5
DP   (20-30)2523.7-26.332.5

Synthesis

Polycrystalline diamond is formed by detonation synthesis. The ultra-short synthesis time yields diamond particles with a polycrystalline structure. Each diamond particle consists of countless primary crystals of approximately twenty nanometers in size. The rough particle surface and the high particle strength of polycrystalline diamond are characteristic features of polycrystalline diamond synthesis. Proprietary shaping and cleaning processes guarantee a uniform, blocky particle shape and a controlled, superior product purity.