ISSN 0862-5468 (Print), ISSN 1804-5847 (online) 

Ceramics-Silikáty 27, (4) 299 - 309 (1983)


THE EFFECT OF PRESSURE AND TEMPERATURE ON PHASE STABILITY OF TRICALCIUM SILICATE
 
Stracelský Juraj, Hanic František, Kaprálik Ivan, Kupčík František
 
Institute of Inorganic Chemistry, Slovak Academy oj Sciences, Dúbravská cesta 5, 842 36 Bratislava 2

Using the condition for an equilibrium of the solid state reaction and by means of Clausius-Clapeyron equation, an evaluation was made of the stability limit of Ca₃SiO₅ in the P-T diagram in the pressure region of up to 0.8 GPa. The differential quotient dT/dP for the reaction Ca₃SiO₅ → Ca₂SiO₄ + CaO has a slope of 550 K/GPa. The metastability region of Ca₃SiO₅ was verified experimentally.


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