Alkali, Chalcogen, Transitional, Phase transitions, Tetragonal

• K-Na-Nb-O
• Bi-Na-O-Ti
• K-Nb-O
• Ba-Bi-Na-O-Ti
• K-Li-Na-Nb-O-Sb
• temperature for congruent melting
• fusion
• structural transitions
• temperature for structural transition
• alkali
• chalcogen
• transitional
• oxide
• disordered