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Solving Customer Problems with
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Diamond Helps Improve Product Performance |
Diamond technology isn't new. In the late 1950s, Russian scientists first suggested the idea that diamond could be synthesized by CVD techniques under low pressure. Product designers were interested but, initially, it was viewed as an exotic and expensive solution. Today, with advancements in technology, customers consider CVD diamond to be a viable and important solution for many cutting tool and hard coating applications. In defense, manufacturing, medicine, computing, and many other areas - from components to systems - diamond helps improve product performance.
CVD diamond has all the extreme chemical and
physical properties of natural diamond and high-pressure, high temperature (HPHT) synthetic diamond. CVD diamond is essentially pure diamond formed as interconnected diamond microcrystallites with no binder - grown directly
on the tool substrate.
With the intense interest of product designers, diamond may become as common as aluminum is today. Its popularity has grown because diamond properties are found at the extreme poles on material scales and therefore offer many benefits.
Benefits of Diamond
As a manufacturer, you place high demands on the performance of materials. Diamond is the perfect solution and Crystallume's specialty. Contact one of our engineers. We'll suggest how to implement diamond into your manufacturing process and improve your product performance today!
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Pure Diamond – Grown from Methane Gas |
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Comparison of Crystallume CVD Diamond with Current Alternative Materials |
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Property |
Crystallume CVD Diamond |
Alternative |
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Thermal Conductivity (w/cm-°C)@25°C |
10-18 |
Copper 4.0 |
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Hardness (kg/mm2) |
9000 |
CBN 4500 |
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Optical Transmissivity |
225 nm to far IR |
Sapphire |
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Band Gap (eV) |
5.4 |
GaAs 1.43 |
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Coefficient of Friction |
0.05-0.7 |
Teflon®0.05 |
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Thermal Expansion (ppm) |
2.0 |
Si 2.6 |
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Electrical Resistivity (ohm-cm) |
1015 (<10-3doped) |
AI203 1015 |
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Smooth Diamond – |
The new smooth coating is about half the thickness of our standard coating which helps to give the tool a sharper edge. The grain size of the new coating is less than 1 micron, compared to our standard coating with an average grain size of 10-12 microns. This gives the new smooth coating an improved surface for resisting BUE (Built Up Edge) a key in machining low silicon aluminums.
The smooth diamond tools work best where finish and edge sharpness is an issue. The tool life will still be equivalent to PCD tools in the same application.
Smooth diamond tools are available on a limited basis from stock or can be special ordered. Please remember to specify Smooth Diamond for those applications where surface finish is an issue.
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