Effective elastic moduli of Al–Si composites reinforced in situ with TiB2 particles

The moduli of the A356/TiB2p and A132/TiB2p composites can be notably improved by TiB2 particles. The increments of the moduli of the two composites are close to each other at low fraction. However, the increment of modulus of 9.5 vol.%A132/TiB2p can reach 24 GPa, which is 41.2% higher than that of 9.5 vol.%A356/TiB2p. A new analytical method is put forward.