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Properties and Uses of Molybdenum Metal
The first application of molybdenum metal – wires in incandescent lamps – dates to the early 1900s. Molybdenum was chosen due to its stability and strength at high temperatures. Since this first application, scientists and engineers have discovered that molybdenum has other properties that make it a material of choice for many applications. Some of these take advantage of molybdenum’s strength and stability at high temperatures, as in the first filaments. However, molybdenum has many other properties that make it attractive for applications beyond traditional high-temperature components, including: · High thermal conductivity · High electrical conductivity · Low coefficient of thermal expansion · Resistance to corrosion by molten metals · Compatible with most glass compositions · Resistance to thermal shock · High hardness · Strong bond to glass used in lamps and electronic devices Because of its many properties, molybdenum metal and its alloys are attractive to engineers and designers, molybdenum metal and its alloys are often used in: · Lighting fixtures · Electrical and electronic equipment · Medical equipment · Materials processing equipment · High-temperature furnaces and related equipment · Thermal spray coatings · Components for the aerospace and defense industries All of these applications require a unique combination...
2025-06-12 Learn More
What is Molybdenum Copper Alloy?
Molybdenum copper alloy combines the advantages of copper and molybdenum, with high strength, high specific gravity, high temperature resistance, arc erosion resistance, good electrical and thermal conductivity, and good processing performance. It uses high-quality molybdenum powder and oxygen-free copper powder, and isostatic pressing (high-temperature sintering-copper infiltration) to ensure product purity and accurate ratio, fine structure, and excellent performance. It has good arc breaking performance, good electrical conductivity, good thermal conductivity, and small thermal expansion. Manufacturing method： Liquid phase sintering method: After the tungsten copper or molybdenum copper mixed powder is pressed and formed, it is liquid-phase sintered at 1300-1500°. The material prepared by this method has poor uniformity, many closed voids, and the density is usually less than 98%. However, the sintering activity can be improved by adding a small amount of nickel to prepare ultrafine and nano powders, such as activated sintering, mechanical alloying, or oxide reduction, thereby improving the density of tungsten copper and molybdenum copper alloys. However, nickel activated sintering will significantly reduce the electrical and thermal conductivity of the material, and the introduction of impurities by mechanical alloying will also reduce the conductivity of the material; the oxide co-reduction method is used to prepare powder, the...
2025-06-05 Learn More
Molybdenum Metal Applications – Medical Devices
Molybdenum components are critical to the operation of high-power X-ray tubes used in computer axial tomography (CAT, or CT) equipment. The vacuum tube that produces X-rays is similar in many ways to the vacuum tubes used in earlier electronic devices, but it must withstand much more severe thermal and stress environments. The electrons in the X-ray tube do not transmit signals as in the tube, but instead inject their energy into the target, thereby producing X-rays. The process itself is not very efficient, but high currents and high accelerating voltages increase the number of X-rays produced. Most of the electron beam energy produces heat rather than X-rays, so the target material must be able to withstand very high temperatures. The cathode assembly is a machined component from molybdenum rolled product, and the component must be able to withstand the thermal loads imposed by the internal filament. The rotor is also machined from molybdenum or molybdenum alloy Mo-TZM round bar because it can withstand the rotational load of the large target material and conduct and dissipate heat to the target. High temperature strength is also extremely important for this component. The target is perhaps the most important part of an X-ray...
2025-05-29 Learn More
What is molybdenum sheet?
Molybdenum sheet is a thin sheet material processed from metal molybdenum, with a thickness usually between 0.01 and 2 mm. Due to its excellent high temperature performance, corrosion resistance and excellent mechanical properties, it is widely used in electronics, aerospace, high temperature furnaces and chemical industries. Molybdenum sheets can be made into rectangular, circular or customized shapes, with widths ranging from 10 mm to 1000 mm and lengths up to 2000 mm or cut according to requirements. The density of molybdenum sheet is 10.28 g/cm3. It has a high melting point, low thermal expansion coefficient, high tensile strength, good elongation and creep resistance. It can resist corrosion from dilute acid (such as hydrochloric acid) and alkali at room temperature, and its performance is better than that of iron. The manufacturing of molybdenum sheet mainly includes two processes: powder metallurgy and rolling. The powder metallurgy method starts with the selection of high-purity molybdenum powder, which is made into a blank through high-pressure molding, and then sintered at about 2000°C in a vacuum or hydrogen atmosphere, and the density reaches 90-95% of the theoretical value; then, it is further compacted by hot forging or hot rolling, and cold rolled to a thickness...
2025-05-22 Learn More

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