Based on the microbond test

the method of sample preparation was improved

and its procedure was described in detail. The effect of interfacial parameters

such as the slope k(N/m) and intercept b(N) of the function Fmax(le)

k′(N/m2) and b′(N/μm) of the function τIF(le)

on the micromechanics of micro\|composites was discussed. The experimental results showed that typical maximal force (Fmax) demonstrated excellently linear relationship with embedded length (le) in range of 55 and 75 μm when the stretching rate was 4 mm/min. However

the interfacial shear strength (τIF) showed hyperbolic relationship with the le

and eventually tended to a limited value (k′) along with increase of le. At the same time

the interfacial parameters

slope k (from 0.0033 to 00095 N/m) and intercept b (from -0.54 to -0.14 N)

were discussed respectively to reveal how these parameters affected the dispersion of theoretical curves. The bigger the value of k was

the faster the typical maximal force (Fmax) and the theoretical curve of the interfacial shear strength (τIF) increased. Meanwhile

the bigger the value of b was

the bigger the value of typical maximal force (Fmax) and interfacial shear strength (τ IF) were. Finally

the effect of specimen geometry on the dispersion of experimental data was also discussed. The defects of different specimens actually caused stress concentration in the interface

which increased the dispersion of experimental curves.