Purity: 99.5 %
CAS No.: 7440-67-7
Melting Point: 1852 °„C
Boiling Point: 3580 °„C
Density: 6.506 G/Cm3
Vickers Hardness: 110
Electric Resistivity: 41.4 Microhm-Cm
Crystal Structure: Hexagonal
EINECS No.: 231-176-9
Abrasives, Aerospace, Alloys ,Medical,Nuclear
a) Because of zirconium's excellent resistance to corrosion, it is often used as an alloying agent in materials that are exposed to corrosive agents, such as surgical appliances, explosive primers, vacuum tube getters and filaments.
b) 90% of all zirconium produced is used in nuclear reactors because of its low neutron-capture cross-section and resistance to corrosion. Zirconium alloys are used in space vehicle parts for their resistance to heat, an important quality given the extreme heat associated with atmospheric reentry.
c) Zirconium is also a component in some abrasives, such as grinding wheels and sandpaper.
d) Zirconium is used in weapons such as the BLU-97/B Combined Effects Bomb for incendiary effect.
e) Zirconium in the oxidized form is also used in dentistry for crowning of the teeth because of its biocompatibility, strength and appearance.
f) High temperature parts such as combustors, blades and vanes in modern jet engines and stationary gas turbines are to an ever increasing extent being protected by thin ceramic layers which reduce the metal temperatures below and keep them from undergoing (too) extensive deformation which could possibly result in early failure. They are absolutely necessary for the most modern gas turbines which are driven to ever higher firing temperatures to produce more electricity at less CO2. These ceramic layers are usually composed by a mixture of zirconium and yttrium oxide.