碳化硼-泡沫鋁雙層復合材料的制備及其防彈性能

Preparation and ballistic resistance of B₄C-Al foam composites with a bilayer structure

摘要: 采用熱壓燒結制備的碳化硼陶瓷和發泡法制備的泡沫鋁，經環氧樹脂黏結后制備得到碳化硼-泡沫鋁雙層復合材料.通過對材料靶板進行實彈靶試試驗，著重研究和分析了該雙層復合材料的防彈性能.靶試試驗中，使用口徑分別為7.62mm和12.7 mm的穿甲燃燒彈，沖擊速度約820 m·s^-1，射擊距離為10m.試驗結果表明：碳化硼-泡沫鋁雙層復合材料對7.62mm口徑穿甲燃燒彈具有較好的防護能力，其防護系數范圍為5.06-5.12.

Abstract: Hot-pressed boron carbide and aluminum foams were connected by epoxy resin to prepare bilayer composite materials.The ballistic resistance of the composite materials was investigated by ballistic testing using the materials as target plates. Armor piercing projectiles,7.62 and 12.7 mm in caliber,respectively,were used as test projectiles. The impact velocity was probably of the order of 820 m·s^-1and the shooting distance was 10 m. It is found that the composite materials have good ballistic resistance to 7.62 mm-caliber armor piercing projectiles,with the protecting factor in the range of 5.06 to 5.12.