Uses Of Silicon Nitride Powder

Silicon nitride (Si3N4) is an important structural ceramic material, which not only has excellent electrical, thermal and mechanical properties, but also has excellent properties such as good thermal shock resistance, high temperature creep resistance, good self-lubrication and good chemical stability, and is widely used in many key technical fields.

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the uses of silicon nitride powder

Nitride silicon powder is a material with various excellent properties and its main uses cover multiple industries and technical fields. Here are some of the main uses of nitride silicon powder:

1. Photovoltaic Industry

In the photovoltaic industry, high-purity silicon nitride powder (with a purity of more than 99.99%) is used for crucible coatings (release agents) for multi-crystalline silicon casting, as well as in high-performance nitride fluorescent materials and other fields.

2. Chemical Industry

Nitride silicon powder is used in the chemical industry to manufacture ball valves, pump bodies, sealing rings, filters, heat exchanger parts, immobilized catalyst carriers, combustion boats, evaporating dishes, etc.

silicon nitride powder

3. Semiconductor and Aerospace Industries

In the semiconductor and aviation industries, silicon nitride powder is used to manufacture substrates for switching circuits, thin-film capacitors, electrical insulators that can withstand high temperatures or sudden changes in temperature, radar antenna domes, rocket nozzles, support and isolation components in atomic reactors, and carriers for nuclear fission materials, among other things.

4. Medical Engineering

Nitride silicon powder can be used in medical engineering to manufacture artificial joints.

5. Power Generation Equipment

Nitride silicon powder is also used to manufacture nitride silicon iron, which plays a role in improving the openability in blast furnace gunning mud, meeting the needs of blast furnace iron production and becoming an indispensable part of modern large-scale blast furnace gunning mud. In addition, nitride silicon iron is widely used in the steelmaking process.

6. Electronic and Optoelectronic Fields

Nitride silicon powder has a high electron mobility and breakdown field strength in solid-state electronic devices, making it suitable for manufacturing high-power, high-frequency electronic devices such as high-voltage field-effect transistors (HV-FETs), power MOSFETs, and power diodes. Additionally, nitride silicon exhibits excellent photoelectric properties in the lighting industry, making it ideal for manufacturing light-emitting diodes (LEDs) and ultraviolet LEDs.

7. Solar Cell

Nitride silicon powder can also be used to manufacture photovoltaic cells. Compared with silicon material photovoltaic cells, photovoltaic cells made of nitride silicon materials have higher solar cell conversion efficiency and longer service life.

silicon nitride powder

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