Tantalum Silicide

Tantalum silicide powder is a compound powder composed of tantalum and silicon, usually grey or black, with high melting point, good high-temperature stability, oxidation resistance and a certain degree of electrical conductivity, plays an important role in the field of high-temperature materials, electronic devices and other fields.

Characteristics

Chemical formula: TaSi₂.

Density: about 9.14g/cm³, high density makes it has some weight advantage in the application, such as in the need to increase the density of the material to improve the stability or inertia of the occasion.

Melting point: up to 2200°C, it is a high melting point material, which means that it maintains a stable structure and properties at high temperatures, making it suitable for high temperature working conditions, such as high temperature structural components and heating elements.

Colour: Tantalum silicide powder is usually black, grey-black or dark colours such as dark blue-grey.

Particle size: According to different production requirements and application scenarios, the particle size can be selected in the range of nanometer (e.g. 20nm, 50nm, etc.) to micron (e.g. 1μm, 3μm, etc.).

Crystal type: generally cubic.

Specific surface area: the smaller the particle size, the larger the specific surface area. Powders with large specific surface area have higher surface activity and better reactivity during chemical reactions or bonding with other materials.

Solubility: insoluble in water.

Antioxidant properties: It has good antioxidant properties at high temperatures, and is able to remain stable in an oxidising atmosphere and is not easily oxidised. This makes it valuable for applications in areas such as high-temperature antioxidant coatings.

Stability: It is relatively stable chemically, and has good compatibility with silicon, carbon and other basic, which can be used to prepare ceramic matrix composite materials and so on.

Applications

Electronics industry:

Semiconductor devices: Tantalum silicide powder can be used as a conductive material in the semiconductor industry to make contact electrodes, interconnects and gate electrodes for transistors. Its good conductivity and high-temperature stability can meet the requirements of semiconductor devices in different working conditions, helping to improve the performance and reliability of the device.

Integrated circuits: Tantalum silicide powder is used in the connection lines of integrated circuits to provide stable conductivity in a tiny space to ensure the normal operation of the circuit. And in the manufacturing process of integrated circuits, it can withstand high temperatures and other complex process conditions to ensure the quality of the circuit.

High temperature application areas:

Electric heating element: with high melting point and good high temperature stability, it is an ideal material for making electric heating element. Under high temperature environment, it can maintain stable resistance and heat generating performance, widely used in high temperature electric furnace, heat treatment equipment, etc.

High-temperature structural components: Tantalum silicide powder can be used in the manufacture of high-temperature structural components in aerospace, engines and other fields. For example, in jet engines and gas turbines, tantalum silicide powder can be used to manufacture blades, combustion chambers and other key components, which can withstand the impact of high temperature, high pressure and high-speed airflow to ensure the normal operation of the engine.

Coating materials:

High-temperature antioxidant coating: it has good antioxidant performance in high-temperature environment, and can be used as a coating material on metal or ceramic surfaces to protect them from oxidation corrosion. For example, in the aerospace field, it can be used to coat the blades, turbines and other parts of aircraft engines to improve their service life.

Wear-resistant coatings: Tantalum silicide coatings have high hardness and wear resistance, and can effectively resist abrasion and friction, and can be applied to coat the surfaces of mechanical parts, cutting tools and other surfaces to improve their wear resistance and service life.

Ceramic matrix composites: With good compatibility with ceramic materials, it can be added to ceramic matrix composites as a reinforcing phase to improve the material’s strength, toughness and high temperature resistance. For example, in aerospace, defence and other fields, ceramic matrix composites have important application value, and the addition of tantalum silicide powder can further enhance its performance.

3D printing: Due to its unique physical and chemical properties, it can be used in 3D printing technology to create parts with complex shapes and high performance. During the 3D printing process, Tantalum silicide powder combines well with other materials to form a dense structure that meets the material performance requirements of different application scenarios.