Silicon carbide products are an advanced material widely used in high temperature, high pressure and high frequency environments.

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Its advantages and disadvantages are as follows:
Advantage:
1.Excellent high-temperature performance: The melting point of silicon carbide products is as high as °C, which can maintain its structural stability and strength in high-temperature environments, so it is widely used in high-temperature molten metals, high-temperature heating furnaces, high-temperature petrochemical and other fields.
2.Strong corrosion resistance: Silicon carbide has excellent corrosion resistance and can work stably for a long time in acid, alkali and oxidative environments.
3.High hardness and high strength: Silicon carbide has higher hardness and strength than traditional ceramic materials, so it has good wear resistance and impact resistance.
4.Excellent thermal conductivity and electrical conductivity: Silicon carbide has high thermal conductivity and excellent electrical conductivity, so it is widely used in the manufacture of high-power electronic components and radiators.
Disadvantages:
1.Expensive: Silicon carbide products are expensive to manufacture because of their high manufacturing costs.
2.Difficulty in manufacturing: The manufacture of silicon carbide products is difficult and requires complex production processes such as high temperature and high pressure.
3.Fragile: Silicon carbide products are fragile and not suitable for some environments with large particles and easy wear.
4.Poor machinability: The machinability of silicon carbide products is poor, and the processing is difficult, so it is difficult to manufacture silicon carbide products with complex shapes.
Silicon Carbide Ceramic Material Properties for information.

5 Advantages and Disadvantages of SiC

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This page covers the advantages and disadvantages of Silicon Carbide (SiC). It mentions Silicon Carbide (SiC) advantages or benefits and Silicon Carbide (SiC) disadvantages or drawbacks.

What is Silicon Carbide?

Introduction:

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Silicon Carbide (SiC) is a semiconductor material composed of both Silicon and Carbon, with the chemical formula SiC. Its structure is shown in Figure 1. It possesses the following characteristics:

• Density: 3.1 g/cm3
• Linear expansion coefficient: 3.9 x 10-6 / °C
• Hardness: Kg/mm2
• Elastic Modulus: 380 GPa
• Poisson’s Ratio: 0.16
• Electrical Resistance: 108 Ohm-Cm
• It can be used at high temperature/voltage.

Benefits or Advantages of Silicon Carbide (SiC)

Following are the benefits or advantages of Silicon Carbide (SiC):

1. High hardness
2. Low thermal expansion
3. High thermal consistency
4. Good resistance at high temperatures
5. Electrical conductivity
6. Non-linear electrical resistance

SiC has many attractive benefits and is used for higher voltage, higher power, and high-temperature applications. The following section highlights some of the challenges in manufacturing SiC devices.

Drawbacks or Disadvantages of Silicon Carbide (SiC)

Following are the disadvantages of Silicon Carbide (SiC):

1. Silicon carbide is not available as a natural mineral. Hence, excessive furnace techniques are needed to produce the compound from Si.
2. There is difficulty in doping in SiC fabrication due to its chemical inertness, physical strength, and low diffusion coefficient of other impurities.
3. Different types of material defects are produced in SiC substrates with the present manufacturing processes.
4. High manufacturing and processing costs due to difficulty in manufacturing large wafers of SiC with fewer defects and a lack of suitable processes.
5. Contacts, interconnects, and passive components (e.g., inductors) should handle extreme conditions with reliability and durability in order to keep SiC functionally active in such conditions.

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