<p>For the first
time, the metal infiltration depth and infiltration rate of the BN-Al composite
prepared by metal infiltration have been calculated and studied. The
calculation results show that the infiltration depth gradually increases with
the increase of time, and the final infiltration depth can reach 0.21 m. As
time increases and voids decrease, the infiltration rate gradually decreases.
The maximum impregnation rate is 0.65cm·min<sup>-1</sup>. This calculation and
research provide a positive idea for the calculation and prediction of metal
infiltration in void media in the future study.</p>