Hafnium Plate

Hafnium Plate , Rod , Wire , Pellets , Cylinder can be used as evaporation material, sputtering target .

Hafnium Plate

Grade

Hf+Zr;99.95%; Zr<2%

Diameter : 0.125 to 4nch (3mm to 101.6mm).

Symbol: Hf plate
Atomic Number: 72
Atomic Weight: 178.49
Density: 13.31 gm/cc
Melting Point: 2227 oC
Boiling Point: 4602 oC
Thermal Conductivity: 0.230 W/cm/K @ 298.2 K
Electrical Resistivity: 35.1 microhm-cm @ 25 oC
Electronegativity: 1.3 Paulings
Specific Heat: 0.035 Cal/g/K @ 25 oC
Heat of Vaporization: 155 K-Cal/gm atom at 4602 oC
Heat of Fusion: 6.0 Cal/gm mole
Thermal Neutron Cross Section: 115 Barns

Hafnium alloy, and can be used for rocket nozzles aircraft gliding reentry leading edge protective layer, Hf-Ta alloy tool steel and can be fabricated of resistive material. In heat resistant alloy of hafnium is used as add elements, such as tungsten, molybdenum, tantalum alloys Some of hafnium increases. Because of the high melting point and hardness HfC, increasing agent can be used as carbide. 4TaC • HfC a melting point of about 4215 ℃, the highest known melting point of the compound.