Categories By Element

Categories By Function

TA1001 Tantalum Single Crystal (Ta Single Crystal) Maximize
Download SDS file

TA1001 Tantalum Single Crystal (Ta Single Crystal)

Stanford Advanced Materials (SAM) is a trusted supplier of tantalum single crystal and a wide variety of tantalum products. Other shapes are also available upon request including Ta Foil / Ta Strip, Ta Tube / Ta Pipe, Ta Wire, Ta Sheet / Ta Plate, etc.

We also offer tantalum tungsten alloy, tantalum niobium alloy and tantalum compounds.

More details

Description:
Tantalum (Ta) is a dark blue-gray metal that is very heavy, ductile and hard and has high corrosion resistance. Tantalum is especially resistant to chemicals at temperatures below 150 °C and can only be dissolved with hydrofluouric acid. It has the fourth highest melting point of all metals and is able to form extremely thin and protective oxide layers for high-quality capacitors, making it an excellent material for single crystal.

Applications:
• Used in the fabrication of semiconductors.
• Used for lasers and nonlinear optics.

Specifications of SAM Tantalum Single Crystal:

Metal single crystal properties

State:

Single crystal

 

Crystal structure:

bcc

 

Production method:

Floating zone

 

Standard size:

diameter 6-12mm
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:

99.99%

 

Typical analysis (ppm):

Al < 1
C 80
Co < 3
Cu < 1
Fe 5

H < 10
N 90
O 120
S < 10
Si 25
Ta balance

 

Further Materials properties

Crystal structure:

(cell dimensions/pm), space group
b.c.c. (a=330.29), Im3m

Density:

16.6 g/cm3

X-ray diffractions mass absorption coefficients:

CuKa 166 (µ/r) / cm2g-1 
MoKa 95.4 (µ/r) / cm2g-1

Neutron scattering length:

0.691 b/10-12 cm

Thermal neutron capture cross-section:

20.6 sa / barns

Melting point:

2995.85 °C / 3269 °K

Boiling point:

5424.85±100 °C / 5698±100 °K

Molar volume:

10.87 cm3

Thermal conductivity:

57.5 [300 K] Wm-1K-1

Coefficient of linear thermal expansion:

6.6 x 10-6 K-1

Electrical resistivity:

12.45x10-8 [298 K] Wm

Mass magnetic susceptibility:

+1.07 x 10-8(s) kg-1m3

Young's modulus:

185.7 GPa

Rigidity modulus:

69.2 GPa

Bulk modulus:

196.3 GPa

Poisson's ratio:

0.342 GPa

Radii:

Ta5+ 64; Ta4+ 68; Ta3+ 72; atomic 143; covalent 134

Electronegativity:

1.5 (Pauling); 1.33 (Allred); 4.11 eV (absolute)

Effective nuclear charge:

3.30 (Slater); 9.53 (Clementi); 13.78 (Froese-Fischer)

Number of Isotopes (incl. nuclear isomers):

28

Issotope mass range:

159 -> 186

 

Biological data

Biological role:

none

Toxicity

 

Toxic intake:

moderately poisonous by ingestion

Lethal intake:

LD50 (chloride, oral, rat)= 1900 mg kg-1

Hazards:

There are no cases of industrial poisoning caused by tantalum or its compounds. However, it is an experimental tumorigen.

Level in humans

 

Blood:

n.a., but low

Bone:

c. 0.03 p.p.m.

Liver:

n.a.

Muscle:

n.a., but low

Daily dietary intake :

0.001 mg

Total mass of element in average 
[70 kg] person:

c. 0.2 mg


Geological data

Mineral

 Formula

 Density

 Hardness

 Crystal appearance

Columbite

 (Fe, Mn)(Ta, Nb)2O6

a group of ores of mixed composition

Ferrotantalite

 FeTa2O6

 7.95

 6 - 6.5

 orth., black-brownish/black

Manganotantalite

 (Fe, Mn)(Ta, Nb)2O6

 6.76

 6 - 6.5

 orth., black-brownish/black

Microlite

 (Na, Ca)2Ta2O6(O, OH, F)

 6.42

 5 - 5.5

 cub., vitreous/resinous yellow

Samarskite

 (Y, Ce, U, Fe)3(Nb, Ta, Ti)5O16

 5.69

 5 - 6

 orth., vitreous/resinous black

 

Packaging:
Our tantalum single crystals are carefully handled during storage and transportation to preserve the quality of our products in their original condition.



Send us an inquiry now to find out more information and the latest prices,thanks!

Please include item quantity, size and purity.

Follow Us On