Is there a technique to measure the phase transformation or chemical reaction at ultra high temperature (> 2000 degC)?

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Gossé Stéphane

Some high temperature DTA can work beyond 2000°C (Setaram, Netzch).

Second option, have you tried to perform some simple thermal analyses using infrared pyrometers?

Bowen Dong

In fact, I need to find out a proper technique that allows characterization from 2000 to about 2700 degC, which is beyond the available DTA/DSC, and the services that the manufacturers provide. I have pyrometer, but I have not tried using them for thermal analysis yet. Are you talking about using the emissivity change to identify the reaction or phase transformation?