Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Dental zirconia all-ceramic material and preparation method thereof
The invention discloses a dental zirconium oxide all-ceramic material. Nano ZrO2 powder prepared by a polyacrylamide gel method is dry-pressed to synthesize the all-ceramic material. The nano ZrO2 powder is prepared by thermally decomposing and crystallizing a gel precursor, which is prepared from a composite zirconium source composed of ZrOCl2.8H2O and ZrO(NO3)2.2 H2O, and the particle size of nano ZrO2 is in a range of 60.4 to 82.6 nm, the decomposition rate of the gel reaches 85% to 95% in the gel thermal decomposition step, and 90% to 95% of ZrO2 is converted from a tetragonal phase to a monoclinic phase in the crystallization step.
本发明公开一种牙科氧化锆全瓷材料，通过采用聚丙烯酰胺凝胶法制备的纳米ZrO粉体干压成型合成，所述纳米ZrO粉体通过采用由ZrOCl·8HO与ZrO(NO)·2HO组成的复合锆源制得的凝胶前驱体经过凝胶热分解步骤和晶化步骤制得以获得分布在60.4至82.6nm范围内的粉体粒径；其中，凝胶前驱体在凝胶热分解步骤中达到85％至95％的分解率，在晶化步骤中90％至95％的ZrO由四方相转变为单斜相。
Dental zirconia all-ceramic material and preparation method thereof
The invention discloses a dental zirconium oxide all-ceramic material. Nano ZrO2 powder prepared by a polyacrylamide gel method is dry-pressed to synthesize the all-ceramic material. The nano ZrO2 powder is prepared by thermally decomposing and crystallizing a gel precursor, which is prepared from a composite zirconium source composed of ZrOCl2.8H2O and ZrO(NO3)2.2 H2O, and the particle size of nano ZrO2 is in a range of 60.4 to 82.6 nm, the decomposition rate of the gel reaches 85% to 95% in the gel thermal decomposition step, and 90% to 95% of ZrO2 is converted from a tetragonal phase to a monoclinic phase in the crystallization step.
本发明公开一种牙科氧化锆全瓷材料，通过采用聚丙烯酰胺凝胶法制备的纳米ZrO粉体干压成型合成，所述纳米ZrO粉体通过采用由ZrOCl·8HO与ZrO(NO)·2HO组成的复合锆源制得的凝胶前驱体经过凝胶热分解步骤和晶化步骤制得以获得分布在60.4至82.6nm范围内的粉体粒径；其中，凝胶前驱体在凝胶热分解步骤中达到85％至95％的分解率，在晶化步骤中90％至95％的ZrO由四方相转变为单斜相。
Dental zirconia all-ceramic material and preparation method thereof
一种牙科氧化锆全瓷材料及其制备方法
KONG LINGBING (Autor:in) / ZHANG TIANSHU (Autor:in) / LIU YIN (Autor:in) / DONG QIANG (Autor:in)
28.07.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
LAMINATED ZIRCONIA DENTAL CERAMIC MATERIAL AND PREPARATION METHOD THEREFOR
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