Actinoid, Radioactive, Nb-Th, Phase transitions

• Nb-Th-Zr
• Nb-O-Th
• C-Nb-Th
• Nb-O-Sr-Th
• phase diagram
• fusion
• temperature for congruent melting
• radioactive
• transitional
• actinoid
• ternary
• prism
• tetragonal
• monoclinic
• cubic
• hexagonal
• orthorhombic