The fracture of TP-650 is even without dimple and necking,which shows distinct brittle fracture character. Meanwhile,distinct interface debonding between matrix and particle has been observed.

• 由断口分析可以看出,TP-650断口平齐,无颈缩现象,断口无韧窝,呈明显的脆性断裂特征,颗粒与基体界面有明显的脱粘现象。