Casting technology and foundational research status of four types of hybrid reinforcement
namely continuous fibre/particulate(whisker)
short fibre (whisker)/short fiber
short fibre (whisker)/ particulate
particulate/particulate for hybrid reinforced metal matrix composite were surveyed. It is proposed that the further research orientations in hybrid reinforced metal-matrix composite go on toward the developments of fabrication technology for uniformly preformed hybrid reinforcements and their behavior