Overview
Molybdenum powder, particularly spherical molybdenum, is a high-purity metallic powder valued for its exceptional thermal and chemical stability. It is produced through processes like hydrogen reduction or plasma atomization, ensuring uniform particle size and shape. This powder is critical in industries requiring materials with high melting points and resistance to corrosion. Spherical molybdenum powder is preferred for additive manufacturing and advanced coatings due to its flowability and packing density. Its consistent morphology makes it suitable for precision applications in aerospace, defense, and electronics.
Physical and Chemical Properties
Molybdenum powder exhibits a high melting point of 2623°C and a density of 10.28 g/cm³, making it ideal for high-temperature environments. It is insoluble in water but reacts with oxidizing acids like nitric acid. The spherical form enhances its flow characteristics and sintering performance. The powder's thermal conductivity and low thermal expansion coefficient make it suitable for thermal management applications. Its corrosion resistance ensures longevity in harsh chemical environments, such as in catalyst beds or corrosive gas handling systems.
Main Applications
Molybdenum powder is widely used in alloy production, particularly for steel and superalloys, where it enhances strength and heat resistance. In electronics, it serves as a conductive filler in composites and as a sputtering target for thin-film deposition. Additionally, spherical molybdenum powder is essential in additive manufacturing (3D printing) for aerospace components and medical devices. Its catalytic properties are leveraged in petroleum refining and chemical synthesis, where it facilitates reactions at high temperatures.
Safety and Storage
Molybdenum powder poses health risks if inhaled or ingested, requiring PPE such as respirators and gloves. Dust control measures, including local exhaust ventilation, are critical in handling environments. Storage should be in airtight containers under inert gas to prevent oxidation. Spills should be contained and cleaned using non-sparking tools to avoid ignition risks. Dispose of waste in accordance with local regulations, as molybdenum compounds can be environmentally persistent.
B2B Procurement Guide
When procuring molybdenum powder, prioritize suppliers with ISO certification and material traceability. Key specifications include purity (≥99.9%), particle size distribution (e.g., 15–45 µm for additive manufacturing), and oxygen content (<500 ppm). Bulk purchases (100+ kg) often reduce costs, but verify logistics for moisture-sensitive shipments. Request mill test reports (MTRs) and conduct third-party testing if necessary. Leading producers are in China, the U.S., and Germany, with prices varying by order volume and purity.
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