Alkali, Ternary, Transitional, Phase transitions, Tetragonal

• K-Nb-O
• F-K-Mn
• As-Fe-Na
• Fe-K-Se
• K-O-V
• temperature for congruent melting
• fusion
• structural transitions
• temperature for structural transition
• pressure for structural transition
• transitional
• ternary
• alkali
• non-disordered