The invention discloses a
ceramic sheet and a preparation method thereof, and belongs to the technical field of
ceramic composite materials. The method comprises the following steps: injecting preparation raw materials into a mold, curing, demolding,
drying, discharging glue and
sintering, the preparation raw materials comprise a
slurry raw material, an initiator and a catalyst; the
slurry raw material comprises a
powder raw material and a premixed solution; the
powder raw material comprises
ceramic powder and a
sintering aid; the premixed liquid comprises an organic
monomer, a cross-linking agent and the like. The
mass of the powder raw material is 60-77% of that of the
slurry raw material; the
mass of the organic
monomer is 14-25% of that of the premixed solution, and the
mass ratio of the organic
monomer to the cross-linking agent is 20: 1-70: 1. By adopting the preparation raw materials with the specific composition and proportion, the
polymerization speed of the monomer and the cross-linking agent can be slowed down, the
toughness of a cured wet blank can be improved, the ceramic sheet with relatively high bending strength,
fracture toughness and
hardness can be obtained, in addition, the method can realize rapid lifting and pulling of an upper mold, the demolding and forming efficiency can be improved, and the production cost can be reduced.