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767514

Sigma-Aldrich

Tantalum

sputtering target, diam. × thickness 2.00 in. × 0.25 in., 99.95% trace metals basis

Synonym(s):

Ta

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About This Item

Empirical Formula (Hill Notation):
Ta
CAS Number:
7440-25-7
Molecular Weight:
180.95
EC Number:
231-135-5
MDL number:
MFCD00011252
UNSPSC Code:
12352103
PubChem Substance ID:
329767321
NACRES:
NA.23

vapor pressure

<0.01 mmHg ( 537.2 °C)

Assay

99.95% trace metals basis

form

foil

autoignition temp.

572 °F

reaction suitability

core: tantalum

resistivity

13.5 μΩ-cm, 20°C

diam. × thickness

2.00 in. × 0.25 in.

bp

5425 °C (lit.)

mp

2996 °C (lit.)

density

16.69 g/cm3 (lit.)

SMILES string

[Ta]

InChI

1S/Ta

InChI key

GUVRBAGPIYLISA-UHFFFAOYSA-N

Application

Sputtering is a process whereby atoms are ejected from a solid target material due to bombardment of the target by energetic particles. The extreme miniaturization of components in the semiconductor and electronics industry requires high purity sputtering targets for thin film deposition.

Storage Class Code

11 - Combustible Solids

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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Kostantinidis; S.;
The European Physical Journal - Applied Physics, 56(2), 24002/1-24002/1 (2011)
Helmersson; U.;
Thin Solid Films, 513(1-2), 1-1 (2006)
Brett Levine et al.
The Journal of the American Academy of Orthopaedic Surgeons, 14(12), 646-655 (2006-11-02)
Porous tantalum is an alternative metal for total joint arthroplasty components that offers several unique properties. Its high volumetric porosity (70% to 80%), low modulus of elasticity (3 MPa), and high frictional characteristics make it conducive to biologic fixation. Tantalum
Brett Levine et al.
The journal of knee surgery, 20(3), 185-194 (2007-08-02)
Porous tantalum represents an alternative metal for primary and revision total knee arthroplasty (TKA) with several unique properties. Tantalum is a transition metal, which in its bulk form has shown excellent biocompatibility and is safe to use in vivo as
Nilesh Patil et al.
Journal of biomedical materials research. Part B, Applied biomaterials, 89(1), 242-251 (2008-10-08)
Conventional porous-coated joint prostheses used in hip and knee reconstruction have demonstrated good clinical results, however, these implants possess some inherent shortcomings such as low volumetric porosity, suboptimal frictional characteristics, and higher modulus of elasticity relative to that of bone.
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