Ba-Nb, Chalcogen, Fusion

• Ba-Nb-O
• Ba-Nb-O-Ti
• Ba-La-Nb-O
• Ba-Ca-Nb-O
• Ba-Na-Nb-O
• temperature for congruent melting
• transitional
• alkaline
• chalcogen
• oxide
• tetragonal
• cubic
• trigonal
• orthorhombic
• hexagonal