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Hafnium Single Crystal 72Hf178.49

Discovered in 1923 by D. Coster and G.C. von Hevesey at Copenhagen, Denmark.

[Latin: Hafnia = Copenhagen] French: hafnium
German: hafnium
Italian: afnio
Spanish: hafnio

Description: Hafnium is a lustrous, silvery, ductile metal that resists corrosion due to an oxide film on its surface. However, powdered hafnium will burn in air. The metal is unaffected by acids (except HF) and alkali's. It is used in control rods for nuclear reactors, and in high temperature alloys and ceramics.

Metal single crystal properties
State: single crystal
Crystal structure: hexagonal
Production method: Floating zone
Standard size: diameter 7-8mm
thickness 1mm
Orientation: (0001)
Orientation accuracy: <2°, <1°, <0.5° or <0.1°
Polishing: as cut, one or two sides polished
Roughness of surface: <0.03µm
Purity: 99.99%