Figure 5
From: A novel Al matrix composite reinforced by nano-AlNp network

The fracture characteristic of the AlNp/Al composites at RT.
(a,b) Cross-sectional observation of the 16.4% sample fracture reflecting the crack traces. (c,d) The fracture surface of the 4.1% (c) and 16.4% (d) composites shows the crack mode is particle crack. The exposed AlB2-terraces is the evidence.