| Customization: | Available |
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| Certification: | ISO |
| Shape: | Can Be Produced According to The Drawing |
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Basic properties
Zirconium metal
Zirconium readily absorbs hydrogen, nitrogen and oxygen; Zirconium has a strong affinity for oxygen, and its volume can be significantly increased when oxygen is dissolved in zirconium at 1000°C. The surface of zirconium is easy to form a layer of oxide film, with luster, so the appearance is similar to steel. Resistant to corrosion, but soluble in and aqua regia. At high temperature, it can react with non-metallic elements and many metallic elements to generate solid solution. Zirconium has good plasticity and is easy to be processed into plates and silk. Zirconium can absorb a large amount of oxygen, hydrogen, nitrogen and other gases when heated, and can be used as hydrogen storage material. Zirconium corrosion resistance is better than titanium, close to niobium, tantalum. Zirconium and hafnium are chemically similar, symbiotic metals that contain radioactive materials..
Zirconium alloy
Zirconium alloy A non-ferrous alloy consisting of zirconium as a matrix with other elements added. The main alloy elements are tin, niobium, iron and so on. Zirconium alloy in 300 ~ 400ºC high temperature and pressure water and steam has good corrosion resistance, moderate mechanical properties, low atomic thermal neutron absorption cross section, good compatibility to nuclear fuel, and is often used as the core structure material of water cooled nuclear reactor. In addition, zirconium has excellent corrosion resistance to a variety of acids, bases and salts, and has a strong affinity with oxygen, nitrogen and other gases. Therefore, zirconium alloy is also used in the manufacture of corrosion resistant components and pharmaceutical machinery parts, and is widely used as a non-evapotranspiration sterilizer in the electric vacuum and light bulb industries. [8]
Zirconium alloys produced on an industrial scale are zirconium tin series and zirconium niobium series. The former alloy grades are Zr-2, Zr-4, the typical representative of the latter is Zr-2.5Nb. In zircaloy tin alloys, alloying elements such as tin, iron, chromium and nickel can improve the strength of materials, corrosion resistance and thermal conductivity of corrosion resistant films, and reduce the sensitivity of surface state to corrosion. Usually Zr-2 alloy is used in boiling water reactors and Zr-4 alloy is used in pressurized water reactors. In zirconium - niobium alloy, the corrosion resistance of the alloy is the best when the addition of niobium reaches the solution limit of zirconium crystal structure at the service temperature. Zirconium alloy has homogenous isocrystalline transition. The crystal structure is body-centered cubic at high temperature and densely packed hexagonal at low temperature. Zirconium alloy has good plasticity, which can be made into pipe, plate, bar and wire by plastic processing. Its weldability is good, can be used for welding processing.
Zirconium has a small thermal neutron capture cross section and outstanding nuclear performance. It is an indispensable material for the development of atomic energy industry and can be used as a reactor core structural material. Zirconium powder burns easily in air and can be used as detonator and smokeless powder. Zirconium can be used as an additive to deoxidize and desulfurize high-quality steel, and is also a component of armor steel, cannon steel, stainless steel and heat-resistant steel. Zirconium is an important alloying element of magnesium alloy, which can improve the tensile strength and workability of magnesium alloy. Zirconium is also an aluminum-magnesium alloy modifier, which can refine grains. Zirconium dioxide and zircon are the most valuable compounds in refractories. Zirconium dioxide is the main material of the new ceramic and can not be used as the heating material to resist high temperature oxidation. Zirconium dioxide can be used as an additive for acid-resistant enamel and glass. It can significantly improve the elasticity, chemical stability and heat resistance of glass. Zircon has strong light reflection and good thermal stability. It can be used as a sunblock in ceramics and glass. Zirconium can absorb a large amount of oxygen, hydrogen, ammonia and other gases when heating, is an ideal getter, such as the electron tube with zirconium powder as a degassing agent, with zirconium wire zirconium plate as grid support, anode support, etc. [8]
Powdered iron mixed with zirconium nitrate can be used as glitter. Zirconium is used almost exclusively as a cladding for uranium fuel elements in nuclear reactors. It is also used to make flash lamps for photography, and corrosion resistant vessels and pipes, especially hydrochloric and sulphuric acid. Zirconium chemicals can be used as crosslinking agents for polymers.
Military applications
From the military point of view, steel as long as the addition of one-thousandth of zirconium, hardness and strength will be surprisingly improved. Zirconium-containing armor steel, cannon forging steel, stainless steel and heat-resistant steel are important materials for the manufacture of armored vehicles, tanks, artillery and bulletproof plates.
From the perspective of atomic energy and nuclear energy, zirconium has outstanding nuclear energy and is an indispensable material for the development of atomic energy industry. China's large-scale nuclear power plants generally use zirconium material. If nuclear power is used to generate electricity, 20 to 25 tons of zirconium metal will be consumed per one million kilowatts of power generation capacity a year. A 30,000-horsepower nuclear submarine can use 20 to 30 tons of zirconium alloy as the nuclear fuel envelope and pressure tube.
Zirconium is a rare metal, with amazing corrosion resistance, extremely high melting point, ultra-high hardness and strength and other characteristics, is widely used in aerospace, military, nuclear reaction, atomic energy fields. "God six" on the use of corrosion resistance, high resistance of titanium products, its corrosion resistance is far less than zirconium, its melting point is about 1600 degrees, and zirconium melting point is above 1800 degrees, zirconium dioxide melting point is up to 2700 degrees above, so zirconium as aerospace materials, its performance in all aspects is greatly superior to titanium.
The spill response editor reports
Isolate the contaminated spill area and restrict access. Cut off the fire. Emergency personnel are advised to wear self-contained breathing apparatus and fire protective clothing.
Small leakage: Use sparkless tools to collect in dry, clean, covered containers. Transfer reclaim.
A lot of leakage: with plastic sheet, canvas cover, reduce flying. Use sparkless tools for collection transfer recovery.
The Protective Measures editor reports
Respiratory protection: Wear a self-priming filter dust mask when the concentration of dust in the air exceeds the standard.
Eye protection: Wear chemical safety glasses when the concentration of dust in the air exceeds the standard.
Body protection: Wear general work protective clothing.
Hand protection: Wear chemical-proof gloves.
Storage and Transportation editor
Storage is often moistened and passivated with no less than 25% water. Store in a cool, ventilated warehouse. Keep away from fire and heat. The package is sealed. It should be stored separately from acid and avoid mixed storage. Explosion-proof lighting and ventilation facilities are adopted. Do not use mechanical equipment and tools that can easily generate sparks. The storage area should be equipped with suitable materials to contain leaks. In the process of transportation to prevent rain, shock. Handle with care during loading and unloading to prevent collision and rolling and mechanical damage
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