文摘
Water vapor delayed dehydroxylation (DHX) of montmorillonites by 50 °C. DHX boundary of trans- and cis-vacant layers shifted 50 to 75 °C under water vapor. Partial melting of Na-saturated montmorillonite yielded hollow spheres and bubbles. The heating atmosphere didn't influence the formation of high temperature phases. High temperature phases are cristobalite, spinel, hematite, and amorphous material.