TaC/Ta Composite EVEREDKOTE™-K

High-purity tantalum with a tantalum carbide surface layer formed using a carburizing method

EVEREDKOTE™-K is a TaC/Ta composite. It consists of a high-purity tantalum matrix and a tantalum carbide surface layer formed using a carburization technology.

Characteristics
- The tantalum carbide layer has excellent thermal resistance and is stable at high temperatures.
- Excellent thermal shock resistance to withstand rapid heating and cooling.
- Low reactivity with etching gases.
- Excellent corrosion resistance under the presence of high-melting-point metals.
- Both the tantalum matrix and tantalum carbide layer have high purity.

TaC/Ta Composite EVEREDKOTE™-K

Feature

EVEREDKOTE™-K is a TaC/Ta composite. It consists of a high-purity tantalum matrix and a tantalum carbide surface layer formed using a carburization technology.

Characteristics
- The tantalum carbide layer has excellent thermal resistance and is stable at high temperatures.
- Excellent thermal shock resistance to withstand rapid heating and cooling.
- Low reactivity with etching gases.
- Excellent corrosion resistance under the presence of high-melting-point metals.
- Both the tantalum matrix and tantalum carbide layer have high purity.

Feature

EVEREDKOTE™-K Surface and Cross section

Reactivity with high-melting metals

1600℃ 1800℃ 2000℃ 2180℃
Ta VS Ta X X X
Mo vs Mo
W vs W
Mo vs W
Ta vs TaC X X X
Mo vs TaC
W vs TaC
TaC vs TaC

※ -:Negligible +:Weak ++ :Strong

Impurity analysis example mass ppm

Element Content
B  0.03
Na < 0.01
Mg < 0.05
Al 0.35
Si  <0.01
P <0.01
S <0.01
Cl 0.03
Ca < 0.05
Ti 0.01
V 0.02
Cr < 0.1
Mn < 0.005
Fe  0.06
Co < 0.01
Ni <0.01
Cu <0.05
Zn < 0.05
As < 0.1
Nb 7

*1 < :Detection limit
*2 The figures above are measurement examples and are not to be guaranteed.

Emissivity

Features

  • Heat-resistant materials
  • Corrosion-resistant materials
  • Low emissivity
  • Thermal shock resistance
  • Dense material structure
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