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

 The soUd state transformations in the system Sr₂GeO₄ —Sr₃(PO₄)₂

I. A. Bondar, A. K Shirvinskaya, E. Kanclíř, I. Kaprálik, and Z. Pánek

Institute of Silicate Chemistry, Academy of Sciences of the USSR, 199 164 Leningrad

Abstract:  The transformations of the title system was investigated by means of X-ray diffraction, DTA, and optical analyses. I t was found t h a t at inter­ mediate compositions one phase which can be derived from the ternary compound Sr₅(Ge0₄)(P0₄) ₂ is present in the system. This phase crystallizes in an appatite-like structure and forms extensive solid solutions. Its X-ray and optical characteristics are given. On the basis of end members of the system   (Sr₂GeO₄, x-Sr₃(PO₄)₂) only limited solid solutions are formed. At higher temperatures (approaching solidus temperature) the high temperature phase is present within the region of homogeneity in a broad concentration interval.

Full paper in Portable Document Format: 293a366.pdf

Chemical Papers 29 (3) 366–372 (1975)