Effects of TiB Particles on the Microstructure Evolution and Mechanical Properties of BC/TiB Ceramic Composite.

BC/TiB ceramic composites reinforced with three size scales (average particle size: 7 μm, 500 nm, and 50 nm) of TiB were prepared by using a pressureless sintering furnace at 2100 °C under Ar atmosphere for 60 min. The results demonstrated that during the sintering process, TiB located on the boundaries between different BC grains could inhibit the grain growth which improved the mass transport mechanism and sintering driving force. A semi-coherent interface between BC and SiC was found, which is supposed to help to reduce the interface energy and obtain good mechanical properties of the BC/TiB ceramic composite.

Ballistic Behavior of Oblique Ceramic Composite Structure against Long-Rod Tungsten Projectiles.

Oblique ceramic armor structure composed of an oblique part and a backing part was designed to resist the ballistic impact of long rod penetrators. The front part consisted of an oblique silicon carbide ceramic and a triangular titanium alloy prism. The backing part contained layered silicon carbide and armor steel designed to absorb the residual energy of penetrators.