Tantalum Tungsten Alloy

Tantalum Tungsten Alloy powder is a powdered alloy material composed of the elements tantalum and tungsten with high melting point, high hardness, good corrosion resistance and high-temperature stability, which is a key basic material for the manufacture of high-temperature structural components, electronic components, chemical equipment, and many other high-end applications.

Characteristics

Appearance: Generally grey powder.

Density: Tantalum tungsten alloy itself is a high-density material, and the density of its powder is relatively high, for example, it may be around 10 – 15 g/cm³, but the specific density may vary depending on the proportion of tantalum and tungsten. The high density makes Tantalum-Tungsten alloy products have higher weight and better impact resistance.

Loose density: usually between 9 – 11 g/cm³, loose density reflects the compactness of the powder in the natural accumulation state, which has an important influence on the moulding process of the powder and the porosity of the products.

Flowability: Good flowability is very important for the uniform spreading of the powder in the moulding process and filling of the mould. Good fluidity can ensure the dimensional accuracy and quality stability of the products.

Sphericity: high degree of sphericity, the general requirements of sphericity ≥ 0.8, spherical powder particles in the moulding process can better contact each other and build up, which is conducive to improving the density and strength of the products.

Particle size uniformity: the uniformity of particle size is very important to the moulding performance of the powder and the quality stability of the products. Uniform particle size distribution can make the powder shrink uniformly in the process of sintering or 3D printing, reducing the stress concentration and defects within the product.

Hardness: Since tantalum and tungsten are both high hardness metal elements, the products made of tantalum-tungsten alloy powder have high hardness and can withstand greater pressure and wear.

Strength: High tensile and yield strength, e.g. tensile strength may be between 650 – 850 MPa and yield strength between 550 – 750 MPa, the exact values may also vary depending on the alloy composition and processing.

Ductility: To a certain extent it has good ductility, enabling it to withstand certain deformations during processing without cracking, but the ductility is reduced compared to pure metal.

Melting point: Tantalum Tungsten alloy has a high melting point of about 3080℃, which makes Tantalum Tungsten alloy powder have excellent stability under high temperature environment, and can be applied to the manufacture of parts under high temperature working conditions.

High-temperature strength: under high-temperature conditions, tantalum tungsten alloys can maintain high strength and are not easy to deform or damage, so they have important application value in high-temperature fields such as aerospace.

Corrosion resistance: Tantalum tungsten alloy powder has strong corrosion resistance to a variety of corrosive media, such as wet chlorine, chlorine water, hypochlorite and hydrochloric acid, which makes tantalum tungsten alloy powder has a wide range of prospects for application in the chemical industry, the sea and other corrosive environments.

Applications

Aerospace field:

Engine parts: in the high temperature, high pressure and strong mechanical vibration of the working environment of the aviation engine, tantalum tungsten alloy with its high melting point, high-temperature strength, good creep resistance and excellent corrosion resistance, can be used to manufacture the combustion chamber of the engine, turbine blades, nozzles and other key parts, can withstand extreme working conditions, to ensure the stable operation of the engine and long life.

Rocket components: In the manufacture of rockets, tantalum tungsten alloys can be used to manufacture nozzles, combustion chambers and other components of rocket engines, and their stability and high strength at high temperatures can meet the stringent requirements of the rocket launch process, providing a guarantee for the smooth launch of rockets.

Satellite components: When satellites operate in space, they need to face extreme temperature changes and cosmic radiation and other harsh environments. Tantalum tungsten alloys are selected as key components of satellites, such as structural parts and shells of electronic components, due to their consistent electrical conductivity, extremely high tensile strength and minimal deformation at high temperatures, to ensure the normal operation of satellites and signal transmission.

Chemical industry field:

Corrosion-resistant equipment: Tantalum tungsten alloy has strong corrosion resistance to a variety of corrosive media, such as wet chlorine, chlorine water, hypochlorite and hydrochloric acid, which is superior to pure tantalum. Therefore, it can be used to manufacture corrosion-resistant equipments such as reactors, heat exchangers, pipelines, valves, etc. in chemical production to maintain good performance and service life in harsh chemical corrosion environments.

Catalyst carrier: In some specific chemical reactions, tantalum tungsten alloy can be used as a catalyst carrier, using its good stability and high-temperature resistance to provide stable support and a suitable reaction environment for the catalyst, and to promote the efficient conduct of chemical reactions.

Electronic industry field:

Capacitors: tantalum tungsten alloy can be used to manufacture high-performance capacitors. In capacitors, the performance of the electrode material has an important impact on the capacitance, voltage resistance, life and other performance indicators of the capacitor. Tantalum tungsten alloy has good electrical conductivity and high dielectric constant, which can improve the capacitor’s energy storage capacity and work stability, suitable for electronic equipment with high requirements for capacitor performance.

Semiconductor manufacturing: In the process of semiconductor manufacturing, a variety of high-purity materials and components are required. Tantalum-tungsten alloy can be used to manufacture key components in semiconductor equipment, such as sputtering targets, evaporation sources, etc. Its high purity and good physical and chemical properties can ensure the precision and stability of the semiconductor manufacturing process.

Medical field:

Medical devices: tantalum tungsten alloy has good biocompatibility and corrosion resistance, and can be used in the manufacture of artificial joints, bone nails, bone plates and other medical devices. Its high strength and good mechanical properties can meet the requirements for the use of medical devices in the human body, providing support for the treatment and rehabilitation of patients.

Medical imaging equipment: In medical imaging equipment, such as X-ray machines, CT scanners, etc., tantalum tungsten alloys can be used to manufacture X-ray collimators, detectors and other components, and their good X-ray absorption properties and stability can improve the precision and accuracy of medical imaging.

Energy field:

Nuclear energy field: In nuclear power plants, tantalum tungsten alloys can be used to manufacture shell materials for nuclear fuel elements, control rods and other parts. Its performance of high temperature resistance, corrosion resistance and anti-irradiation resistance can ensure the safe operation and long-term stable work of nuclear power plants.

New energy field: in the field of solar energy, wind energy and other new energy, tantalum tungsten alloy can be used to manufacture electrode materials for solar cells, wind turbine key components, etc. Its good electrical conductivity and mechanical properties can improve the efficiency and reliability of new energy equipment.