Non-coplanar triangle 3-vertex, Phase transitions

• C-H-N-O
• Fe-O
• S-Ta
• Fe-Te
• Ca-La-Mn-O
• fusion
• temperature for congruent melting
• structural transitions
• temperature for structural transition
• decomposition
• chalcogen
• non-disordered
• transitional
• disordered
• monoclinic
• orthorhombic
• trigonal
• triclinic
• hexagonal