Exploring The Five Major Application Fields Of Diamond

Diamond, with its outstanding physical properties, is applied in mechanical, thermal, optical, acoustic, and semiconductor applications.Now let's take an example to explore the application of diamond.

 

 

1, Application of Mechanics

The main applications of diamond mechanics include diamond cutting tools/surgical tools, diamond trimmers/pens, diamond wire drawing cores, diamond bio coatings, tool coatings, etc., mainly utilizing the high hardness, high wear resistance (high wear ratio), chemical stability, biocompatibility and other characteristics of diamond.

• Main performance characteristics of the company's products:
• Hardness: 70-120GPa
• Crystal orientation: Six sided 100, customizable
• Roughness:<30nm
• Size: The size and shape can be customized according to customer needs
• Wear ratio: ≥ 300000
• Thermal conductivity: ≥ 1500W/m ∙ k

 

Application case:

 

 

2, Thermal Applications

The unique lattice vibration (phonon) heat transfer mechanism of diamond gives it ultra-high thermal conductivity, and its extremely high electrical resistivity makes it suitable for use as a primary heat sink. With the high power, high frequency, miniaturization, and high integration of electronic devices, diamond's ultra-high thermal conductivity can effectively dissipate the heat generated by the devices, making it the best thermal management material for high heat flux density devices.

 

• Main performance characteristics of the company's products:
• Size: 1-6 inches, customizable
• Thickness: 0.25-1mm, customizable
• Surface roughness: less than 10nm
• Thickness deviation: ± 0.03mm
• Thermal conductivity W/(m · K): single crystal 1500-2400, polycrystalline 1200-2000.
• Thermal expansion coefficient: 1 ± 0.1 ppm/K @ room temperature

Application Cases

 

3, Optical Applications

Diamond optical window related components are a type of diamond optical component that combines the excellent optical properties of diamond with other outstanding mechanical, thermal, electrical, and chemical properties, and has different geometric structures that can be used under extreme conditions. Diamond itself has a transmittance of only about 71%, but coating an anti reflection (anti reflection) film on its surface can increase its transmittance to over 90%.

The ultra wide spectral transmission range and transmittance of diamond make it widely used in optical components in important wavelength bands such as X-ray windows, infrared guidance windows, high-power CO2 laser windows, and high-energy microwave feeding windows.

• Main performance characteristics of the company's products:
• Size: 1-4 inches, customizable
• Thickness: 0.25-1.5mm, customizable
• Transmittance:>70% @ 8-200 μ m
• Surface roughness:<5nm
• Thickness deviation: ± 0.01mm
• PV：＜2μm@2inch
• Refractive index: 2.38@10 μm, 2.39@1064nm
• Dielectric constant (140GHz): 5.6 ± 0.15
• Dielectric loss (140GHz):<6 * 10-5

Application Cases

 

4, Acoustic applications

CVD diamond has a high elastic modulus and low mass density, making it the material with the fastest propagation speed of sound waves. It also has characteristics such as high frequency of segmented diaphragm, low total harmonic distortion, and high power tolerance, making it an ideal material for producing high fidelity acoustic devices, acoustic surface filters, and acoustic sensors.

Main performance characteristics of the company's products:

• Size: φ 18-37mm
• Thickness: 0.03-0.05mm
• Weight: 0.06-0.09g
• One grain surface, one mirror surface
• Diameter tolerance: ± 0.03mm
• Roundness tolerance: ± 0.05mm
• Curvature radius: SR20-SR25 ± 0.15mm
• Young's modulus: 1050 ± 100GPa

 

5, Other applications

Diamond, as a semiconductor detector, has the advantages of simple structure, high energy resolution, and fast response, especially for fast neutron detection. The principle is that when radioactive particles pass through the detector, they interact with electrons in the diamond single crystal, resulting in ionization. The detector detects and measures particles based on this principle.

 

prospect

One generation of materials, one generation of innovation. Guoji Diamond has established a cross industry, full chain, and multi factor independent and controllable innovation system, continuously improving its independent innovation capabilities, promoting the transformation of the industrial chain towards high-end, intelligent, and green. By breaking through key core technologies, it enhances the added value and market competitiveness of diamond products, drives the future development of the industry through innovation, promotes the reconstruction of industrial advantages, continuously achieves technological breakthroughs and industrial upgrading in the field of superhard materials, leads China's superhard materials to a higher level, injects strong impetus into the innovative development of China's industry, and contributes more Chinese wisdom to the world's scientific and technological progress.