Cristobalite Phase



At the first stage of transformation of kaolinite to metakaolinite at ~600 °C, XRD shows a broad diffuse asymmetrical reflection at 0.43 nm. It is attributed to noncrystalline nature of metakaolinite instead of free SiO2(A).


Exothermic Peak Corroborative Evidence Free Silica Potassium Aluminate Contraction Peak 
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© Springer India 2014

Authors and Affiliations

  1. 1.Refractory Central Glass & Ceramic Research InstituteJadavpurIndia

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