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Tellurium Powder

Tellurium (Te) Powder

Overview
Tellurium (Te) powder is a high-purity metalloid material widely used in semiconductor, thermoelectric, and alloy applications. It exhibits semiconducting properties, good photoconductivity, and unique thermoelectric performance. With its crystalline structure and ability to form various compounds, tellurium is a critical material in infrared optics, phase-change memory, and photovoltaic devices.

Typical Applications

Tellurium powder is commonly utilized in:

  • Alloying with stainless steel and copper to improve machinability

  • Thermoelectric materials for power generation and cooling

  • Phase-change optical and memory devices

  • Infrared optical coatings

  • Semiconductor and photovoltaic research

Tellurium Powder Specification

PropertyValue
Chemical FormulaTe
Molecular Weight127.6 g/mol
Purity99.8% (3N), higher purities available
AppearanceGray to silvery powder
Crystal StructureHexagonal
Melting Point~449.5 °C
Boiling Point~988 °C
Electrical Resistivity1.5×10⁻³ Ω·m at 20 °C
Particle Size200 Mesh standard; other mesh sizes available
CAS Number13494-80-9
Density6.24 g/cm³

Customized particle size distributions and purity levels are available upon request.

Applications of Tellurium Powder

  • Thermoelectric modules and devices

  • Semiconductor and photovoltaic thin films

  • Infrared optics and coatings

  • Alloying additive for improved metal machinability

  • Advanced material research and nanomaterials synthesis

Handling and Storage

  • Store in a cool, dry, and inert atmosphere to prevent oxidation

  • Avoid exposure to acids, moisture, and strong oxidizers

  • Use appropriate PPE to prevent inhalation of fine particles

Packaging

Tellurium powder is vacuum-sealed or packaged under inert gas in moisture-resistant containers. Each shipment is labeled with product name, purity, particle size, batch number, and net weight for full traceability and quality assurance.

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FAQ

  • Metal powders are fine particles of metals produced through various processes such as atomization, reduction, or electrolysis. They are used in applications like additive manufacturing, powder metallurgy, and coatings.

  • Alloy powders consist of two or more metallic elements combined to enhance properties like strength, corrosion resistance, and ductility, whereas pure metal powders contain only a single element.

  • The shape affects flowability, packing density, and spreadability. Spherical particles are preferred in additive manufacturing due to their superior flow characteristics.

  • Spherical powders are typically produced using gas atomization, where molten metal is atomized into fine droplets that solidify into spherical shapes.

  • Spherical powders offer better flowability and packing density, leading to improved layer uniformity and mechanical properties in 3D-printed components.

  • Factors include particle size distribution, shape, chemical composition, purity, and production method.

  • Yes, metal powders can pose hazards such as toxicity, reactivity, combustibility, and instability. Proper handling, storage, and safety protocols are essential.

  • In powder metallurgy, metal powders are compacted and sintered to produce components with complex shapes and tailored properties, often with minimal waste.

  • Yes, unused or excess metal powders from manufacturing processes can often be collected, sieved, and reused, provided they meet quality standards.

  • The combination of different metals in alloy powders can enhance properties such as strength, hardness, corrosion resistance, and thermal stability, depending on the application requirements.

  • Spherical alloy powders are used in aerospace, automotive, medical implants, and tooling industries for manufacturing high-performance components via additive manufacturing and powder metallurgy.

Production methods like gas atomization, water atomization, and mechanical milling influence particle size, shape, and purity, which in turn affect the performance of the powders in various applications.

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