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Tantalum Carbide Powder

What is tantalum carbide powder?

tantalum carbide powderTantalum carbide (TaC) is an extremely hard (Mohs hardness 9-10) refractory ceramic material, commercially used in tool bits for cutting tools. The hardness is only exceeded by diamond. It is a heavy, brown powder usually processed by sintering, and an important cermet material. It is sometimes used as a fine-crystalline additive to tungsten carbide alloys. Tantalum carbide has the distinction of being the stoichiometric binary compound with the highest known melting point, at 4150 K (3880°C). The substoichiometric compound TaC0.89 has a higher melting point, near 4270 K (4000°C). It burns in air with a bright flash and only slightly soluble in acids. Has a metallic luster.

When used as a mould coating, it produces a low friction surface.
Tantalum carbide-graphite composite material, developed in Los Alamos National Laboratory, is one of the hardest materials ever synthesized.
Dusts from grinding can be flammable.
Substances to avoid are: flammable gases (dust may form explosive mixtures with gases)

Tantalum Carbide Powder Typical Applications:

  • Tantalum carbide is often added to tungsten carbide/cobalt (WC/Co) powder attritions to enhance the physical properties of the sintered structure. It also acts as a grain growth inhibitors preventing the formation of large grains, thus producing a materials of optimal hardness.
  • It is also used as a coating for steel moulds in the injection moulding of aluminium alloys. While providing a hard, wear resistant surface, it also provides a low friction mould surface.
  • Tantalum carbide is also used in the production of sharp instruments with extreme mechanical resistance and hardness.
  • It is also used in tool bits for cutting tools.

Symobl

Ta(Nb)C 
(% Min.)

T.C
(%Min.)

Chemical Composition(% Max.)

Fisher Size(µm)

Nb

Fe

Si

Al

Ti

O

N

F.C

FTaC-2

99

6.2

1.0

0.15

0.02

0.01

0.02

0.25

0.05

0.15

≤3

FTaC-3

99

6.25

5.0

0.2

0.025

0.02

0.02

0.30

0.05

0.2

≤3

If you have any interest in tantalum carbide powder, please feel free to contact us by email: sales@chinatungsten.com or by telephone: +86 592 5129696.

 

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