Zirconia-based all-ceramic false tooth and preparation method thereof

[0016] Weigh 90 parts of ZrO according to mass ratio 2 , 9 copies of Y 2 o 3 , 0.5 parts of Al 2 o 3 , 0.01 parts of Fe 2 o 3 , 0.49 Er 2 o 3 Mix, then put into the mold and dry press at 20 MPa; vacuum-pack the molded product with a plastic bag, and then carry out isostatic pressing at 300 MPa; put the isostatically pressed product into a sintering furnace, The temperature is raised from room temperature to 1100° C. for 2 hours for pre-sintering to obtain a zirconia-based porcelain block.

[0017] Weigh 24.5 parts of CaCO according to mass ratio 3 , 50 parts of SiO 2 , 25 parts of MgO, 0.49 parts of Fe 2 o 3 , 0.01 Er 2 o 3 The powder was added with deionized water and mixed with zirconia mill for 24 hours, then dried at 120°C for 4 hours, and then calcined at 1100°C for 4 hours to obtain calcium magnesium silicon ceramic powder. To the above-mentioned calcium magnesium silicon ceramic powder, add 0.2 parts of fatty alcohol polyoxyethylene ether as a dispersant, ...

[0021] Weigh 94 parts of ZrO according to mass ratio 2 , 5 copies of Y 2 o 3 , 0.29 parts of Al 2 o 3 , 0.5 parts of Fe 2 o 3 , 0.01 Er 2 o 3 , 0.2 parts of MnO 2 Mix, then put into the mold and dry press at 3 MPa; vacuum-pack the molded product with a plastic bag, and then carry out isostatic pressing at 150 MPa; put the isostatically pressed product into a sintering furnace , from room temperature to 950 ° C for 4 hours for pre-sintering to obtain zirconia-based ceramic block.

[0022] Weigh 49.5 parts of CaCO according to mass ratio 3 , 49.3 parts of SiO2 , 0.5 parts of Fe 2 o 3 , 0.5 parts of Er 2 o 3 , 0.2 parts of MnO 2 The powder was added with deionized water and mixed with a zirconia mill for 4 hours, then dried at 80°C for 24 hours, and then calcined at 1250°C for 2 hours to obtain a calcium-magnesium-silicon ceramic powder. Add 0.1 part of methylcellulose as a binder to the above-mentioned calcium magnesium silicon ceramic powder, add 50 parts of deio...

[0026] Weigh 93.1 parts of ZrO according to mass ratio 2 , 6 copies of Y 2 o 3 , 0.1 parts of Al 2 o 3 , 0.2 parts of Fe 2 o 3 , 0.5 parts of Er 2 o 3 , 0.1 part of MnO 2 Mix, then put into the mold and dry press at 10 MPa; vacuum-pack the formed product with a plastic bag, and then carry out isostatic pressing at 250 MPa; put the isostatically pressed product into a sintering furnace , from room temperature to 1050 ° C for 3 hours for pre-sintering to obtain zirconia-based ceramic blocks.

[0027] Weigh 44.7 parts of CaCO according to mass ratio 3 , 45 parts of SiO 2 , 10 parts MgO, 0.01 parts Fe 2 o 3 , 0.19 Er 2 o 3 , 0.1 part of MnO 2 The powder was added with deionized water and mixed with a zirconia mill for 12 hours, then dried at 100°C for 8 hours, and then calcined at 1200°C for 2 hours to obtain a calcium-magnesium-silicon ceramic powder. To the above-mentioned calcium magnesium silicon ceramic powder, add 0.1 part of silicone resin as a dispersant, a...