TaC/Ta Composite EVEREDKOTE™-K

everedkote.t.jpgHigh-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.
  • EVEREDKOTE™-K Surface and Cross section

    everedkotek2.jpg

    Reactivity with high-melting metals

    1600℃ 1800℃ 2000℃ 2180℃
    Ta VS Ta ++ ++ ++
    Mo vs Mo - + + +
    W vs W + + +
    Mo vs W + +
    Ta vs TaC + ++ ++ ++
    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

    Emissivity

    Features

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

    Try out EVERDKOTE™-K to improve quality and yield, and reduce costs.

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