Ba-Sr, Chalcogen, Phase transitions, Tetragonal

• Ba-Nb-O-Sr
• Ba-O-Sr-Ti
• Ba-Cu-La-O-Sr
• Ba-Ca-Nb-O-Sr
• Ba-La-Mn-O-Sr
• fusion
• temperature for congruent melting
• structural transitions
• temperature for structural transition
• alkaline
• chalcogen
• transitional
• disordered
• oxide