PcBN Composite Breakthrough #worldresearchawards #researcher #advancedcomposites
Polycrystalline cubic boron nitride (PcBN) is one of the most important ultra-hard materials used in high-speed and high-temperature machining applications. Known for its exceptional hardness, chemical stability, and wear resistance, PcBN is widely employed in cutting tools for hardened steels and superalloys. However, enhancing its fracture toughness and thermal performance remains a key research focus. The incorporation of Al-ZrB2-TiC additives into PcBN composites represents a significant advancement in superhard material engineering. Each additive plays a distinct role in improving overall performance. Aluminum (Al) acts as a binder phase modifier, promoting densification during sintering and enhancing interfacial bonding. Zirconium diboride (ZrB2) contributes high melting point stability, oxidation resistance, and improved thermal conductivity. Titanium carbide (TiC) enhances hardness and wear resistance while reinforcing the microstructure. The synergistic combination of these ...