The invention discloses a zirconia tenacity-increasing
alumina oxide dental ceramics substrate crown gelcasting forming method; the method comprises the following steps: dipping a special provided
ceramic slurry by a stack porcelainsmall
brush to
compost all ceramic crown inner core on a dental die surface of a clinical patient and standing the dental die; absorbing the
water content on the surface of the
slurry and densifying to form embryonic core, and then
drying the embryonic core at a constant temperature, taking off the
all ceramic crown from the dental die, and
sintering the
all ceramic crown at a high temperature to prepare the ceramics substrate crown. In the invention, gel systems composed of organic
monomer and crosslinker are used, high
solid content and strongly plastic core biscuit is obtained by the free
radical polymerization reaction, nano-
ceramic particles are used as dispersed phase to introduce micron
ceramic matrix to prepare a nano-
composite ceramic, and the nano-
composite ceramic has good strenghing and toughing effect, high strength material and high
toughness, small change of
sintering volume, moreover the forming method of the invention is easy and fast to operate, and can prepare
dental ceramics substrate crown into various complicated shapes and approach net size forming.