Experimental Study of the High-Temperature Region of the Ca3(PO4)2-CaKPO4-CaNaPO4 System

An experimental study is performed of the high-temperature region of the phase diagram of the Ca-3(PO4)(2)-CaNaPO4-CaKPO4 system. The compositions of the phase fields at 1200 degrees C are determined. It is shown that the region of tricalcium composition at the given temperature consists of two single-phase regions: high-temperature alpha-Ca-3(PO4)(2) and low-temperature beta-Ca-3(PO4)(2). The upper temperatures of the existence of fields of the phase triangle section at 1200 degrees C are determined.

Automated summary

An experimental study was conducted on the high-temperature region of the phase diagram for the Ca-3(PO4)(2)-CaNaPO4-CaKPO4 system. The study determined the compositions of phase fields at 1200 degrees C and identified the existence of two single-phase regions at that temperature. Additionally, the upper temperatures of the phase triangle section at 1200 degrees C were determined.