CO2 Emission at 350°C, detected in STA/DTA-FTIR, from fast fired (roller kiln) clay ceramics?

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Vadim Verlotski

XRD analysis can not show carbon (carbon is too light element), so with this analysis you can only find CaO / MgO instead of CaCO3 / MgCO3.

Sebastian Sänger

We dont find any MgO/CaO in the XRD. Maybe it is thinkable that recarbonization takes place in aged / hydroxylated clay ceramics?