B-Y, Fusion, Rare earth

• B-Ni-Y
• B-Co-Y
• B-C-Y
• B-Fe-Y
• B-Ba-O-Y
• temperature for congruent melting
• metalloid
• transitional
• rare earth
• disordered
• tetragonal
• trigonal
• orthorhombic
• hexagonal
• monoclinic