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Tungsten Single Crystal 74W183.85

Discovered in 1783 by J.J. and F. Elhuijar at Vergara, Spain.

[Swedish: tung sten = heavy stone; wolfram is named after wolframite] French: tungstètene
German: wolfram
Italian: wolframio (tungsteno)
Spanish: wolframio

Description: Tungsten is generally obtained as a dull grey powder, which is difficult to melt. The bulk metal is lustrous an silvery-white, and resists attack by oxygen, acids and alkalis. Tungsten is used in alloys, to which it imparts great strength, in light bulb filaments and cutting tools.

 

Metal single crystal properties
State: single crystal
Crystal structure: bcc
Production method: Floating zone
Standard size: diameter 8-12mm
thickness 1-2mm
Orientation: (100), (110) and (111)
Orientation accuracy: <2°, <1°, <0.5° or <0.1°
Polishing: as cut, one or two sides polished
Roughness of surface: <0.03µm
Purity: 99.999%
Typical analysis (ppm): Ag < 0.10
Al 0.20
C 3.00
Ca 0.10
Cl 0.30
Co < 0.10
Cu < 0.10
Cr 0.15
Fe 0.60
H < 1.00
Mg 0.25
Mn < 0.10
Mo 4.00
N < 5.00
Na < 0.10
Ni 0.40
O 10.0
S 0.20
Si 0.70
Ta 1.00
V 0.50
Zr < 1.00
W balance