Metalloid, O-Si, Phase transitions, Tetragonal

• Ba-Cu-O-Si
• O-Si-Zr
• Al-H-Na-O-Si
• Al-Ca-H-O-Si
• fusion
• temperature for congruent melting
• structural transitions
• pressure for structural transition
• temperature for structural transition
• metalloid
• chalcogen
• disordered
• silicate