The invention discloses a three-dimensional shell
ceramic skeleton-
metal matrix composite and a preparation method thereof, and belongs to the field of
metal matrix composites. According to the structure of the three-dimensional shell
ceramic skeleton-
metal matrix composite, the inside and outside of a three-dimensional shell
ceramic skeleton is filled with a metal matrix, the whole three-dimensional shell ceramic skeleton is of a hollow shell structure, interpenetrating column
pitch points are in a spherical, cylindrical or
square shape, and the wall thickness of the three-dimensional shell ceramic skeleton is 0.5-3mm. According to the preparation method, the difficulty of infiltration of metal liquid and ceramic reinforcement is improved effectively, the inside and outside of the shell is wrapped with a pure matrix, and the plastic
toughness of the composite is not lost while good
wear resistance is achieved. The shape of the
pitch points of the skeleton is in a spherical, cylindrical and
square shape, the
pitch points of the skeleton are distributed periodically, certain connection strength during
sintering can be provided, and the synergistic effect of the skeleton structure and the matrix is brought maximally. The three-dimensional shell ceramic skeleton-
metal matrix composite is expected to be used in the field of friction and abrasion working conditions.