Alkali, Non-disordered, Transitional, Phase transitions

• Na-Nb-O
• Na-O-V
• K-Nb-O
• F-K-Mn
• Br-Co-Rb
• temperature for congruent melting
• fusion
• structural transitions
• temperature for structural transition
• decomposition
• transitional
• alkali
• non-disordered
• chalcogen
• monoclinic
• orthorhombic
• trigonal
• tetragonal
• cubic