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High-temperature & corrosion resistant cermets |
Example 1 |
Example 2 |
| A cermet is a composite material composed of ceramic and metallic materials. It is ideally designed to have the
optimal properties of both a ceramic, such as high temperature resistance and hardness, and those of a metal, such as the ability
to undergo plastic deformation and thermal conductance. Cermets are used in the manufacture of resistors, capacitors, and other
electronic components which may experience high temperatures. In the tool world, cermets are being used in saws and other
brazed tools due to their superior wear and corrosion properties. Additionally, cermets are being utilized since they give
considerably longer life in cutting tools while both brazing and grinding like tungsten carbide. |
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| The cermet tubes produced at the CRC are very suitable for measurements in high temperature and highly corrosive
environments. This is mainly due to the following properties: |
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- Excellent resistance to thermal shock: "cold" cermet tubes can be inserted in liquid steel without suffering from any
thermoshock damage.
- Excellent lifetime: Over 30 minutes for tubes of only 2 mm wall thickness in contact with highly corrosive slag at 1600 °C.
- Excellent thermal conductance, which makes the cermet tubes very suitable for thermocouple protection.
- High strength: Does not break easily, especially compared to the alternative ZrO2-C tubes.
- Due to our unique production process the cermets are easy to shape.
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| Because of the properties listed above, these cermets are used for several applications throughout Tata Steel: |
- Applications in steel production plants:
- Temperature measurements in moulds.
- Steel flow measurements.
- Several applications at the Tata Steel R,D&T Labs:
- Temperature measurements during steel melting in several furnaces.
- Supports for coke plungers which are used for dissolving cokes in vacuum furnaces.
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Example 1 |
Example 2 |
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