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What is Pressuerless sintered silicon carbide (PSSIC) ?

Pressuerless sintered silicon carbide (PSSIC) is a high-performance ceramic material with a wide range of characteristics and applications. Here is a detailed introduction to pressuerless sintered silicon carbide:

Definition and Characteristics:
Pressuerless sintered silicon carbide (PSSIC) is a new type of ceramic material composed primarily of silicon carbide and a certain amount of additives. It is produced through specific processes such as forming, drying, and heat treatment.
Compared to traditional pressure sintered silicon carbide, pressuerless sintered silicon carbide does not require the application of high pressure during the preparation process, thus avoiding sintering issues caused by material unevenness.

Pressuerless sintered silicon carbide has a higher sintering temperature and better crystallization properties, resulting in excellent physical performance including high temperature stability, high hardness, high strength, and corrosion resistance.

Preparation Process:
The preparation of pressuerless sintered silicon carbide (PSSIC) involves mixing silicon carbide powder with additives, forming, and then sintering at high temperatures.

The sintering process can be solid-phase sintering or liquid-phase sintering, depending on the additive and sintering conditions.

Performance Advantages:
Pressuerless sintered silicon carbide (PSSIC) maintains stable strength performance at high temperatures, exhibiting high tensile strength, compressive strength, and bending strength.
It also has good corrosion resistance, allowing it to be used in various harsh environments, including acidic, alkaline, high-temperature, and high-pressure conditions.

The forming process is simple and easy to control, enabling the production of large-sized and complex-shaped products.

Application Fields:
Semiconductor Industry: Pressuerless sintered silicon carbide can be used as substrate materials and heat sinks for semiconductor equipment due to its high-temperature stability, excellent wear resistance, and chemical inertness.
Power Industry: It can be used as structural materials for high-temperature heat exchangers and high-temperature combustors.
Machinery Industry: Used in the manufacture of mechanical components under high temperature and pressure, such as turbine blades, bearings, seals, etc.
Aerospace Industry: Used in the manufacture of high-temperature structural components and thermal protection materials, such as engine nozzles, high-temperature thermal protection plates, etc.

Chemical Industry: Used in the manufacture of chemical reactors, furnace pads, and other equipment that requires high temperature resistance and corrosion resistance.

In summary, pressuerless sintered silicon carbide (PSSIC) plays an important role in various industries due to its excellent physical properties and broad application prospects.



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