Molybdenum foil produced by powder metallurgy is prepared by pressing high-purity molybdenum powder, sintering, and subsequent processing, offering unique properties and wide applications. The process involves compressing molybdenum powder (purity typically ≥99.95%) into billets under high pressure, sintering at 1800-2200°C to form a dense structure, and then rolling or forging into thin foil. The foil’s density nears the theoretical value (10.28 g/cm³) but may be slightly lower (10.1-10.25 g/cm³) due to residual micropores from powder metallurgy. Mechanically, it has a tensile strength of 450-600 MPa, hardness of 140-180 HV, and lower ductility (elongation 8-15%), with poor toughness at low temperatures. The sintering process yields uniform grains, providing good creep resistance at 1000-2000°C, ideal for high-temperature furnace components. Chemically, it resists dilute acids and alkalis at room temperature but forms MoO₃ in oxidizing environments above 600°C, requiring vacuum or inert gas protection. High-purity powder ensures low impurities, enhancing chemical stability compared to standard foil. Powder metallurgy enables complex shapes or large-sized foil, though surface quality is inferior, often improved by polishing or acid washing. Applications include electronics (targets), high-temperature furnaces (heating elements), and aerospace (structural parts). Advantages include process flexibility and customization; disadvantages are potential strength reduction from micropores and higher costs. Quality is verified using ultrasonic or microscopic analysis.
The WeChat public account “China Tungsten Online” updates the prices of various tungstates such as tungstates such as tungstate powder, ammonium tungstate, tungsten products, high-density tungsten alloys, cemented carbides, tungsten concentrates, etc. on a daily basis. At the same time, it provides the most professional WeChat group in the industry for everyone to exchange supply and demand information, and you can exchange information about tungsten powder at any time. Follow “China Tungsten Online” and join the China Tungsten Online WeChat exchange group. Daily tungsten product prices and supply and demand information will be delivered in a timely manner, and real-time communication will be carried out. For more tungsten product market trends, products and information, please follow the “China Tungsten Online” WeChat public account, or visit news.molybdenum.com.cn to obtain daily updated information.
Contact information: sales@chinatungsten.com
Tel: +86 592 5129696 / 86 592 5129595
Scan the QR code to follow the “China Tungsten Online” WeChat public account and get real-time updated tungsten, molybdenum and rare earth product market prices and information for free every morning.
