optical grade single crystal CVD diamonds

Single crystal CVD has excellent properties:
Extremely high hardness, low friction coefficient;
Good thermal conductivity, small thermal expansion coefficient, and small thermal deformation of the tool.
Single crystal CVD has excellent properties:

1. With extremely high hardness, low friction coefficient, therefore it has been widely used in processing various non-ferrous metals and their alloys, ceramics, quartz, gemstones, and various hard stone materials, which play a huge role in the national economy and national defense application market. CVD diamond has good wear resistance, 50 to 100 times higher than cemented carbide.  

2. Good thermal conductivity, small thermal expansion coefficient, and small thermal deformation of the tool. It is very suitable for precision or even ultra-precision cutting. Developed countries in Europe and the United States have been able to process ultra-high-precision tools with contour accuracy better than 50 nm using CVD single-crystal diamond. With the development of precision/ultra-precision machining, the market for CVD diamond products is becoming more and more extensive. In recent years, diamond products synthesized by the CVD method have appeared in European and American countries, which are sought-after by customers. Due to the advantages of high purity, low price, customization, and environmental protection, they have gradually gained market recognition. These advantages will also be used in recent years and gradually expanded to the whole world. Furthermore, CVD diamond products will be widely used in key technical fields such as manufacturing processing, artificial jewelry, optical windows, semiconductor devices, defense, aerospace, etc.

High quality surface finishes on abrasive
Workpiece materials
Outperforms natural diamond due to its consistent and predictable material properties
Offers superior edge quality in ultra-precision machining operations

Product name Single crystal CVD diamond
Orientation 4pt/100
Shape Any shape is available according to custom
Size range 1-10mm (single crystal CVD diamond),
thickness: 0.05-2mm.
Edges Laser cut
Edge features < 0.2 mm
Edge orientation <100> edges
Face orientation {100} faces
Lateral tolerance ±0.1 mm
Flatness Within 2µm
Parallelism 10-20um
Side 1, surface roughness, Ra Polished, Ra < 10-30 nm
Side 2, surface roughness, Ra Polished, Ra < 10-30 nm
Thickness tolerance ±0.05 mm
Boron concentration [B] <0.05ppm
Nitrogen concentration: < 10-50 ppm
Refractive index (10.6 µm) (1) 1064nm2.392      
Thermal conductivity Typically > 1900 Wm-1K-1
Transmission Transmittance1064nm:65%

Raman spectrum, sharp diamond characteristic peaks, the full width at half maximum is less than 2.8

                                   Product infrared transmission detection spectrum