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Properties of CVD Diamonds
 

Properties of CVD Diamonds

 

Property

 Value

Application

Band gap, eV

5.4

High-temperature electronics

Carrier mobility, cm2/Vs

1600 h

2200 e

Radiation-hard detectors

Optoelectronic switches

Resistivity, Ohm*cm

1013-1015

Optical (electron) switches

Thermal conductivity, W/mK

1800-2200

Heat spreaders

Dielectric constant

5.7

Diamond Thz/Ghz based DLA to allow a sustained accelerating gradient larger than 600 MV/m

Loss tangent @170 GHz

0.3·10-6

Windows for gyrotrons, klystrons

Optical transmission range

225 nm – RF

Optics for lasers (mostly IR)

Hardness, GPa

81±18

IOL Tools controlled waviness,surgery blades, knife, scalple, 

Acoustic wave velocity, km/s

18.4 along <111>

Surface acoustic wave devices

Thermal expansion coefficient, 10-6K-1

0.8 @293 K

Stable-dimension components

Corrosion resistance

Stable in HF

Electrochemistry (doped diamond)

Low or negative electron affinity

 

Field electron emitters

Biocompatibility

 

Coatings on implants

 

 
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