983

Кашаев А., Тароев В., Готтлихер Й., Кролл Г.
СТРУКТУРНОЕ СОСТОЯНИЕ ФАЗ В БИНАРНОЙ СИСТЕМЕ KAlSi₃O₈– KFeSi₃O₈

The changing of unit cell parameters phases in KAlSi₃O₈– KFeSi₃O₈ system is characterized by leap and motion fracture with 70% molar fraction of KFeSi₃O₈. When Fe concentration is either high or low mainly triclinic and monoclinic forms are found. Displacing area gap includes the mixture of both modifications in a wide range of Fe concentration. That’s why displacing gap between K(Al,Fe)Si₃O₈– K(Fe,Al)Si₃O₈ is stimulated by Fe content, but modification limits are mainly determined by the temperature, since samples having intermediate Fe content synthesized under the temperature of 400oC tend to produce triclinic form as compare with samples synthesized under 500^oC and 600^oC, that results from quenching of less ordered phases.