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 With the development and progress of science, the emergence of new bulletproof materials, soldiers' bulletproof helmets have also undergone different changes.   There are three main types of bulletproof helmet in the market: The Personnel Armor System for Ground Troops Helmet (PASGT HELMET), The Modular Integrated Communications Helmet (MICH HELMET), The Future Assault Shell Technology Helmet (FAST HELMET).   1.  PASGT HELMET The Personnel Armor System for Ground Troops is used by the United States military from the 1980s until the 2000s as one component, include a combat helmet and bulletproof vest. The PASGT helmet was developed by the U.S. Army Soldier Systems Center after the Vietnam War. But it was later replaced by the LWH and MICH helmet, which are more comfortable to wear. 2.  MICH HELMET   Modular Integrated Communications Helmet (MICH HELMET)is the next generation of PASGT helmet. It was produced in 2001,aiming to design a ballistic helmet more lighter to wear additional

 The main reason why ceramics are used as bulletproof materials is its high hardness, and the weight is much lighter than steel under the same bulletproof effect. For people who often wear  bulletproof vest , weight is an important consideration. Another advantage of ceramic materials relative to steel, Ceramic  bulletproof plate  can absorb the energy of bullet impacts, and the steel bullet-proof plate will rebound the bullet when the bullet hits, which may cause harm to people around you. THREE DIFFERENT BULLETPROOF CERAMIC MATERIALS  Since the 21st century, bulletproof ceramics have developed rapidly and there are many types, including alumina, silicon carbide, boron carbide, silicon nitride, titanium boride, etc., among which alumina ceramics (Al2O3), silicon carbide ceramics (SiC), carbide Boron ceramics (B4C) are the most widely used.   Alumina ceramics (Al2O3) has the highest density, but its hardness is relatively low, processing threshold is low, and the price is relatively ch