Lamellar constituted with 5, 15, 25 vol.% B₄C/Al composites and homogeneous (namely 5, 15, 25 vol.% B₄C/Al) composites were fabricated at sintering temperature 680 °C, sintering pressure 30 MPa, and heat preservation period 90 min via vacuum hot-pressing sintering. Another sample constituted with the raw materials of Al sheet and B₄C powders has been prepared by the same sintering process to discuss the interface reaction of Al and B₄C. In-situ XRD of B₄C/Al mixed powders illustrated that the reaction products between Al and B₄C were AlB₂, AlB₁₂, Al₃BC. EDS and EPMA tests have proved that there was an element diffusion existing at the interface of B₄C and Al. After sintering, new generation phases AlB₁₂, Al₃BC have been detected by SAED analysis of TEM, additionally, the inner microstructure of the lamellar B₄C/Al composites was also observed. The results of mechanical properties showed that the lamellar B₄C/Al composites possessed the optimal performance of Vicker hardness 116.23 ± 5.25 Hv, bending strength 780.45 ± 12.35 MPa and fracture toughness 12.21 ± 0.23 MPa∙m^1/2, which was better than these of homogeneous B₄C/Al composites.

在烧结温度为680°C，烧结压力为30 MPa的条件下，制备了由5、15、25 ％（体积）B ₄ C / Al复合材料和均质（即5、15、25％（体积）B ₄ C / Al）复合材料制成的薄层。真空热压烧结保温90分钟。用Al板和B的原料构成另一个样品₄ Ç粉末已经制备由同一烧结过程来讨论Al和B的界面反应₄ B的C.原位XRD ₄所示的C / Al混合粉末，所述Al和B ₄ C之间的反应产物是AlB ₂，AlB ₁₂，Al ₃公元前。EDS和EPMA测试证明B ₄ C和Al的界面处存在元素扩散。烧结后，通过TEM的SAED分析已经检测到新一代相AlB ₁₂，Al ₃ BC，此外，还观察到层状B ₄ C / Al复合材料的内部微观结构。力学性能测试结果表明，层状B ₄ C / Al复合材料具有最佳的维氏硬度116.23±5.25 Hv，弯曲强度780.45±12.35 MPa，断裂韧性12.21±0.23 MPa∙m ^1/2的最佳性能，优于这些均质的B ₄ C / Al复合材料。