Ba-Cu-O-Y, Fusion, Oxide, Rare earth, Transitional

• Al-Ba-Cu-O-Y
• Ba-Co-Cu-O-Y
• Ba-Cu-La-O-Y
• Ba-Ca-Cu-O-Y
• temperature for congruent melting
• rare earth
• alkaline
• oxide
• chalcogen
• transitional
• orthorhombic
• tetragonal
• cubic
• monoclinic
• trigonal