Alkaline, Transitional, Be-Y

• Be-Ca-Er-Fe-O-Si-Y
• Be-Ca-Eu-Fe-O-Si-Y
• Be-Ca-Ce-Fe-O-Si-Y
• Be-Ca-Dy-Fe-O-Si-Y
• Be-Ca-Fe-Gd-O-Si-Y
• thermal and thermodynamic properties
• phase transitions
• structural properties
• phase diagram
• rare earth
• transitional
• alkaline
• chalcogen
• monoclinic
• tetragonal
• orthorhombic
• trigonal
• cubic