Chalcogen, Transitional, La-Ta, Phase transitions

• La-O-Ta
• La-O-Ta-Ti
• La-Li-O-Ta
• Cu-La-O-Sr-Ta
• La-Na-O-Ta
• fusion
• temperature for congruent melting
• phase diagram
• structural transitions
• transitional
• rare earth
• chalcogen
• lanthanoid
• oxide
• orthorhombic
• tetragonal
• cubic
• monoclinic
• trigonal