鈮靶的製備工藝及主要應用
Niobium targets are used for many applications, including research, medical, industrial, and military. The preparation process for niobium targets involves several steps. First, niobium is melted and poured into a mold to form a target. The mold is then cooled and the target is removed. The target is then machined to the desired shape and size. Finally, the target is heat-treated to improve its properties. Niobium targets are mainly used in research applications, such as nuclear physics and materials science. They are also used in medical applications, such as radiation therapy and imaging. In industrial applications, niobium targets are used for welding and cutting metals. In the military, niobium targets are used for target practice and simulations.
Niobium target preparation process and main application
Niobium sputtering targets have the same properties as their source materials. Niobium is a silver-gray, rare, soft and ductile transition metal with a melting point of 2468°C, a density of 8.57g/cm3, and a vapor pressure of 0.0755 Pa (2741K). The purity of the niobium sputtering target material can reach more than 99.95%, the grain size is small, the recrystallization structure is good, and the three-axis consistency is good. As a cathode sputtering target, the oxide film formed by it is uniform in quality, does not react with other substances in the air, and has a long-lasting protective effect. It is also used in various superconducting alloys and is a common element in jewelry production.
Niobium sputtering target shape: planar target, rotating target, special-shaped customization
Niobium sputtering target purity: 3N5
Niobium sputtering target size: processed according to drawings or customized
We can also provide niobium wire, niobium granule, niobium sheet/plate, niobium foil, niobium crucible, niobium rod, etc.
Niobium sputtering target preparation process
Niobium ingots with a purity of 99.95% were forged, pickled once, vacuum annealed once, forged twice, pickled twice, annealed vacuum annealed twice, dislocation rolling, pickled three times and vacuum annealed three times to obtain niobium sputtering. target.
1. The niobium ingots are forged one by one. The method of one forging is to elongate in the axial direction first, and then thicken in the radial direction. The deformation of axial elongation is 50-80%,
2. The pickling solution used in the first pickling, the second pickling and the third pickling is a mixed acid solution with a commercially available sulfuric acid concentration of 98%, a commercially available hydrofluoric acid concentration of 40% and a commercially available nitric acid concentration of 65%. . The three pickling times are 2 to 5 minutes,
4. The temperature of primary vacuum annealing and secondary vacuum annealing are both 1000～1200℃,
5. The way of secondary forging is radial piercing. The deformation of the radial pier thickness is 40-60%
6. In dislocation rolling, the axial dislocation of the upper roll and the lower roll is 4-8mm,
7. The temperature of three vacuum annealing is 850～1000℃,
The preparation method combines two times of forging and dislocation rolling, the two times of forging destroys the grain structure inside the target, making the grain size smaller, and the dislocation rolling makes the grains inside the target more uniform, combined with three heat treatments Through the process, a niobium target material with small grain size and uniform grain orientation is obtained; and the process is easy to operate, the preparation cost is low, and the applicability is wide.
Niobium Sputtering Target Application
Niobium sputtering targets are mainly used in surface engineering materials, such as shipbuilding, chemical industry, liquid crystal display (LCD) and coating industries such as heat-resistant, corrosion-resistant and high-conductivity, thin-film solar energy industry, low-emissivity glass industry, flat panel display industry, optical coating industry , Tools and decorative coating industry.
Other Applications of Niobium
steel production
Niobium is an effective steel microalloying element where niobium carbides and niobium nitrides are formed. These compounds improve grain refinement and delay recrystallization and precipitation hardening. These same niobium alloys are commonly used in pipeline construction.
Superalloy
Niobium is used up to 6.5% in nickel-, cobalt-, and iron-based superalloys for applications such as jet engine components, gas turbines, rocket components, turbocharger systems, heat resistance, and combustion equipment. Niobium precipitates hardening of the γ" phase in the grain structure of superalloys.
superconducting magnet
Niobium-germanium (Nb3Ge), niobium-tin (Nb3Sn) and niobium-titanium-alloy.html>titanium alloys are used as type II superconducting wires for superconducting magnets. These superconducting magnets are used in magnetic resonance imaging and NMR instruments as well as in particle accelerators.
Niobium Sputtering Target Alloy Types
In addition to niobium sputtering targets, we can also provide sputtering targets such as niobium-tin alloys, niobium-zirconium alloys, niobium-hafnium alloys, niobium-nickel alloys, molybdenum-niobium alloys, aluminum-niobium alloys, and lithium niobate alloys.
