What if Shinzo Abe wears a ceramic bulletproof vest?

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Shinzo Abe died from injuries sustained while giving a speech on the 8th of July 2022 in Nara, Nara Prefecture. Would it have been different if Shinzo had worn a ceramic bulletproof vest instead?
Bulletproof Material Development
William was President of the United States from 1901 to 2001. McEnley was shot to death, and many began looking for bulletproof techniques.

In World War I, bulletproof vest development reached a significant stage. The main technique was to place steel plates into natural fiber fabrics. The different bulletproof vests have been criticized for being too heavy and not having a good bulletproof effect.

British engineers first created a bulletproof vest using three high-manganese plates. The bulletproof vest came soon after by the United States, which used high-strength nylon and aluminum alloy. While these two types of bulletproof vests are much stronger and harder than the ones of the past, the weight issue is still a problem.

DuPont invented a synthetic fiber, “Kevlar”, in 1970. Since then the bulletproof vest has seen a major transformation. Kevlar has 1.6 times the shrapnel power of nylon and two times more steel. This is because it solves completely the bulletproof vest issue.

Today, bulletproof technology has advanced at an incredible pace. There are always new bulletproof materials being created. There are many materials that can be used to protect bulletproof technology, including metals (special steel, aluminum, titanium alloy), ceramic sheet, corundum,boron carbide and silicon carbide), fiber, Kevlar (ultra-high molecular fat polyethylene fiber), liquid protective materials and composite protective structures materials. Bulletproof materials not only can be used to create bulletproof vests but they also have a wide range of applications in aircraft warships and armored fighting vehicle systems as well as civil and military special vehicles.

Ceramic bulletproof materials
Ceramic materials are more durable than traditional metal materials and have higher hardness, low density, high strength, good elastic modulus as well as radiation resistance.

One-phase bulletproof ceramic
Since the 21st-century, bulletproof ceramics have rapidly developed, including silicon carbide and silicon nitride.

1. Alumina ceramics
Alumina ceramic, an ion bond material, has high chemical bond force, high melt point (2050), excellent oxidation resistance, chemical inertia and good oxidation resistance. Sintered products are smooth, small and affordable. This makes it a popular choice for armored vehicles, military bulletproof clothing and other applications. Al2O3’s low performance in ballistics is due to its high density and low fracture toughness.

2. Boron carbide ceramics
Boron carbide has strong covalent bonds, as it is stronger than diamond or cubic boron. The high melting points and exceptional hardness of B4C (35-45GPa) make this material second to diamond. B4C ceramics are the first choice in materials for space and military armor because of its low density. B4C ceramics have a high price, about 10 times higher than alumina, and high brittleness. This limits their use as single-phase protective armour.

3. Silicon carbide ceramics
This covalent bond of silicon carbide is very strong, and it can still bond at high temperatures with high strength. This structural feature provides silicon carbide ceramics with excellent strength, wear resistance, corrosion resistance as well as high thermal conductivity. It also gives them good resistance to thermal shock. Silicon carbide ceramic has a low price, high performance and excellent cost-to-performance ratio.

Multiphase bulletproof clay
While single-phase ceramics may be bulletproof due to their unique properties, they are also susceptible to fracture and high brittleness. The strengthening and toughening for bulletproof ceramics is a popular research area. There are many methods for strengthening and toughening ceramics. These include functionally graded ceramics (multicomponent), lamellar design, and functionally graded ceramics.

Medvedovs ki studied silicon carbide matrix compounds such as SiC­Al2O3, SiC­Si3N4­Al2O3, SiC­Si­Al2O3 or SiC­Si3N4–Al2O3, SiC­Si–Al2O3 or SiC­Si3N4­Si–Al2O3 for their physical properties and prepared them using pressureless sintering, reaction sintering, and by using both. They have higher physical properties than single-material systems in terms of hardness and energy absorption. Composite ceramics made from SiC-based composite ceramics with a high protection coefficient can achieve grades 3 and 4. Both SiC-Si3N4Al2O3 prepared SiC-Si3N4 and SiC reaction sintered SiC have high multi-impact resistence.

Transparent clay
Modern warfare requires armored systems to meet increasingly high requirements. They must not only achieve omni-directional defense but also allow soldiers to move freely. The use of the bait trigger to disable the active armor of any incoming weapon has been a key advantage in combat. The use of transparent ceramics, such as magnesia and alumina spinel (AlON), has been used for armor protection. This can protect the body while also allowing the ability to observe the situation in any given moment.

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