Mechanical and thermal properties of hot pressed B4C-Cr3C2-hBN materials

摘要: Abstract In the present study, boron carbide matrix composites were manufactured by hot-pressing method. order to reduce sintering temperature and improve mechanical properties, such as bending strength, critical stress intensity factor hardness, chromium carbide, because of its low melting point high thermal expansion coefficient, was added in various volume quantities. prepare material for cutting tool or ceramics sealing applications hexagonal nitride quantities ranging from 2 8 vol.% friction coefficient. The sinters subjected abrasive test elastic properties examinations. Computer simulations stresses prepared. measured supported phase analysis microstructural observations. Because carrying out heat is very important materials influence additives on conductivity also presented.