B-C, B-x polyhedra, Hardness

• B-C-Mg
• Al-B-C
• B-C-Rh-Sc
• B-C-Rh-Y
• Knoop hardness
• microhardness
• Vickers hardness number
• Mohs hardness
• disordered
• metalloid
• borocarbide
• conductor
• semiconductor
• trigonal
• cubic
• orthorhombic
• monoclinic
• tetragonal