10-15CT Big Size CVD Rough Lab Grown Diamond White D-H Color Vvs1-Vs2 Raw Diamond Uncut Diamond

Product Description

10-15ct Big Size CVD Rough lab grown Diamond White D-H color VVS1-VS2 raw diamond uncut diamond 

Product Description

 

Chemical vapor deposition is a method by which diamond can be grown from a hydrocarbon gas mixture. the flexibility and simplicity of CVD setups explain the popularity of CVD growth in laboratory research. The advantages of CVD diamond growth include the ability to grow diamond over large areas and on various substrates, and the fine control over the chemical impurities and thus properties of the diamond produced.

 

The CVD growth involves substrate preparation, feeding varying amounts of gases into a chamber and energizing them. The substrate preparation includes choosing an appropriate material and its crystallographic orientation; cleaning it, often with a diamond powder to abrade a non-diamond substrate; and optimizing the substrate temperature (about 800 °C) during the growth through a series of test runs. The gases always include a carbon source, typically methane, and hydrogen with a typical ratio of 1:99. Hydrogen is essential because it selectively etches off non-diamond carbon. The gases are ionized into chemically active radicals in the growth chamber using microwave power, a hot filament, an arc discharge, a welding torch, a laser, an electron beam, or other means.

Size Available:

Name	Lab Grown CVD Rough Diamond plate for Gem
Clarity	VVS VS SI
Color	F G H
Hardness	10
Size	3-15CT
Contact Person	Echo

 

Industry tools Size of CVD diamond plates: 

MONO/SINGLE CRYSTALLINE

 
Size:- 1X 1 mm to 8 X 8 mm,10-12mm
Thickness:- 0.05mm to 3mm
 
Grade and application
 

• Industry (for Mechanical applications, Making Wheel Dresser,die Blank,etc.)
• Electronic (for Quantum optics, radiation detector, etc.)
• Optical(for precision tools, window, anvil, sensor, etc.)
• Thermal/Mechanical (for conventional tools)

Surface

• As Grown or Laser Cut
• Polished (Ra< 5nm, Flatness < 1 fringes @ 633nm)
• Lapped (Ra< 200nm, Flatness < 1 fringes @ 633nm)

Type/Orientation

• Top (100), Customized for Scalpels (based on 2 and 4 point configuration)
• Customized shapes (based on given designs)

Edges

• Laser cut and  both polished

 
Application
a, cutting tools for non-ferrous and non-metallic materials.
b, dressers for wheel dressing
c, a variety of speciallity knives
d,  burnishing tools, cutting tools
e, wear parts
f, wire drawing dies
g, optical window