Ag-Nb-O, Ag-x polyhedra, Chalcogen, Phase transitions

• Ag-Na-Nb-O
• Ag-Li-Nb-O
• Ag-Nb-O-Ta
• Ag-As-Nb-O
• structural transitions
• temperature for structural transition
• fusion
• temperature for congruent melting
• transitional
• oxide
• chalcogen
• ternary
• non-disordered
• orthorhombic
• trigonal
• tetragonal
• cubic
• triclinic