Chalcogen, Rare earth, Gd-S, Phase transitions

• Cr-Gd-S
• Gd-S-Sm
• Gd-H-O-S
• Ba-Cu-Gd-S
• fusion
• temperature for congruent melting
• phase diagram
• structural transitions
• rare earth
• chalcogen
• lanthanoid
• sulfide
• monoclinic
• hexagonal
• orthorhombic
• cubic
• trigonal