Abstract
Exploring new armor-piercing materials is crucial for improving the penetrative ability of projectiles. Based on the process of in situ solidification injection molding through ceramic dispersant hydrolytic degradation, a ZrO2 ceramic material suitable for use as the tip of a 12.7 mm kinetic energy (KE) projectile was prepared. The ZrO2 ceramic tip can be matched with the metal core of a conventional projectile to form a ceramic composite projectile, increasing the damage to the Al2O3 ceramic composite armor. Specifically, the ZrO2 ceramic tip can increase the impact load on the Al2O3 ceramic panel, prolonging the pre-damage phase and reducing the stable penetration phase, shortening the mass erosion time of the metal core compared with a 12.7 mm metal KE projectile tip. The ceramic composite projectile with the ZrO2 ceramic tip has a lower critical penetration velocity than a 12.7 mm metal KE projectile for Al2O3 ceramic composite armor. Furthermore, the residual velocity, residual length, and residual mass of the metal core of the ceramic composite projectile that penetrated the Al2O3 ceramic composite armor are greater than those of a 12.7 mm metal KE projectile.
Highlights
Ceramics are advanced and modern materials, with desirable physical and mechanical properties, such as high hardness, low density, high compressive strength, high speed of sound, wear resistance, corrosion resistance, and heat resistance
The ZrO2 ceramic tip of the ceramic composite projectiles was used to penetrate the ceramic layer of the ceramic composite armor, and the metal core of the ceramic composite projectiles was used to penetrate the backplate of the ceramic composite armor
Sinopharm Chemical Reagent Co. (Shanghai, China) A process of in situ solidification injection molding through ceramic dispersant hydrolytic degradation was used [25]
Summary
Ceramics are advanced and modern materials, with desirable physical and mechanical properties, such as high hardness, low density, high compressive strength, high speed of sound, wear resistance, corrosion resistance, and heat resistance. Projectiles and ammunition fragments, and high-performance ceramics have significantly improved the protective armor of many advanced tanks around the world. Research into the penetrative effect of metal rod–ZrO2 ceramic ball composites on protected targets is prominent [17], which can cause a large area of damage to the ceramic layer of the ceramic composite armor. The ZrO2 ceramic tip of the ceramic composite projectiles was used to penetrate the ceramic layer of the ceramic composite armor, and the metal core of the ceramic composite projectiles was used to penetrate the backplate of the ceramic composite armor This achieved highly efficient armor penetration of the ceramic composite armor and significantly improved the destructive effect on the target protected by ceramic composite armor. The results will have important theoretical and engineering applications in the areas of ammunition combat armor design, armor penetration, and destruction
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