Chalcogen, Oxide, Transitional, Phase transitions, Tetragonal

• Ba-O-Ti
• O-Sr-Ti
• Mg-Nb-O-Pb-Ti
• K-Na-Nb-O
• Ba-Ca-O-Ti-Zr
• fusion
• temperature for congruent melting
• structural transitions
• temperature for structural transition
• transitional
• chalcogen
• oxide
• disordered
• alkaline