ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

The coexistence of crystalline phases in the MgO-rich part of the system CaO—MgO—Si0₂—Na₂0—P₂0₅

I. Kaprálik and M. Potančok

Institute of Inorganic Chemistry, Slovak Academy of Sciences. 809 34 Bratislava

Abstract:  The phase coexistence in the concentration part CaO—-MgO—2MgO • Si0₂—2CaO • Si0₂—2CaO • Na₂0 • Р₂0₅ of the system CaO—MgO—Si0₂—Na₂0—P₂0₅ was determined at subsolidus temperatures, i.e. the elementary tetrahedra in the system were defined. The crystalline phases present were identified by the X-ray powder diffraction. The only phosphate phase in the system is CaNaP0₄ , which forms solid solutions with adjacent silicate phases at high temperatures and which is responsible for bonding properties in the basic refractory materials from the phosphate bond point of view.

Full paper in Portable Document Format: 274a451.pdf

Chemical Papers 27 (4) 451–460 (1973)