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.
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.

| 1600℃ | 1800℃ | 2000℃ | 2180℃ | |
|---|---|---|---|---|
| Ta VS Ta | X | X | X | |
| Mo vs Mo | 〇 | △ | △ | △ |
| W vs W | △ | △ | △ | |
| Mo vs W | △ | △ | ||
| Ta vs TaC | △ | X | X | X |
| Mo vs TaC | 〇 | △ | △ | △ |
| W vs TaC | 〇 | 〇 | △ | |
| TaC vs TaC | 〇 | 〇 | 〇 | 〇 |
※ -:Negligible +:Weak ++ :Strong
| 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.

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