Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Multilayer zirconium oxide presintered body and preparation method thereof, zirconium oxide sintered body and preparation method and application thereof, and dental prosthesis
The invention provides a multilayer zirconia presintered body and a preparation method thereof, a zirconia sintered body and a preparation method and application thereof, and a dental prosthesis. Relates to the technical field of dental materials. By controlling the specific surface area and the apparent density of each layer of zirconium oxide mixed powder, the shrinkage of each layer of zirconium oxide mixed powder is kept consistent in the pre-sintering process, so that the non-deformation multilayer zirconium oxide pre-sintered body is obtained. Due to the fact that the prepared multi-layer zirconium oxide pre-sintered body does not deform under the sintering condition, excessive machining allowance does not need to be reserved when the zirconium oxide pre-sintered body is prepared, raw material waste can be reduced, resources and cost can be saved, and large-scale production can be better facilitated. The density and Vickers hardness difference of each layer of the prepared multi-layer zirconium oxide pre-sintered body is small, the multi-layer zirconium oxide pre-sintered body cannot deform after final sintering, a multi-unit restoration can be prepared, and teeth are closely worn.
本发明提供了一种多层氧化锆预烧体及其制备方法、氧化锆烧结体及其制备方法和应用、牙科修复体；涉及牙科材料技术领域。本发明通过控制每层氧化锆混合粉体的比表面积和松装密度，确保在预烧结过程中，各层氧化锆混合粉体的收缩保持一致，进而得到不变形的多层氧化锆预烧体。由于制备的多层氧化锆预烧体在烧结条件下不发生变形，因此本发明在制备氧化锆预烧体时不用保留过多的加工余量，能够减少原料浪费，节约资源和成本，更有利于进行大批量生产。本发明制备的多层氧化锆预烧体各层的密度和维氏硬度差异较小，经终烧结后不会发生变形，能够制备多单位修复体，戴牙密合。
Multilayer zirconium oxide presintered body and preparation method thereof, zirconium oxide sintered body and preparation method and application thereof, and dental prosthesis
The invention provides a multilayer zirconia presintered body and a preparation method thereof, a zirconia sintered body and a preparation method and application thereof, and a dental prosthesis. Relates to the technical field of dental materials. By controlling the specific surface area and the apparent density of each layer of zirconium oxide mixed powder, the shrinkage of each layer of zirconium oxide mixed powder is kept consistent in the pre-sintering process, so that the non-deformation multilayer zirconium oxide pre-sintered body is obtained. Due to the fact that the prepared multi-layer zirconium oxide pre-sintered body does not deform under the sintering condition, excessive machining allowance does not need to be reserved when the zirconium oxide pre-sintered body is prepared, raw material waste can be reduced, resources and cost can be saved, and large-scale production can be better facilitated. The density and Vickers hardness difference of each layer of the prepared multi-layer zirconium oxide pre-sintered body is small, the multi-layer zirconium oxide pre-sintered body cannot deform after final sintering, a multi-unit restoration can be prepared, and teeth are closely worn.
本发明提供了一种多层氧化锆预烧体及其制备方法、氧化锆烧结体及其制备方法和应用、牙科修复体；涉及牙科材料技术领域。本发明通过控制每层氧化锆混合粉体的比表面积和松装密度，确保在预烧结过程中，各层氧化锆混合粉体的收缩保持一致，进而得到不变形的多层氧化锆预烧体。由于制备的多层氧化锆预烧体在烧结条件下不发生变形，因此本发明在制备氧化锆预烧体时不用保留过多的加工余量，能够减少原料浪费，节约资源和成本，更有利于进行大批量生产。本发明制备的多层氧化锆预烧体各层的密度和维氏硬度差异较小，经终烧结后不会发生变形，能够制备多单位修复体，戴牙密合。
Multilayer zirconium oxide presintered body and preparation method thereof, zirconium oxide sintered body and preparation method and application thereof, and dental prosthesis
一种多层氧化锆预烧体及其制备方法、氧化锆烧结体及其制备方法和应用、牙科修复体
GUO XIAOHUI (Autor:in) / WU HAIYAN (Autor:in) / ZHOU SHENGGANG (Autor:in) / GAO YANG (Autor:in) / SUN JIAN (Autor:in)
27.09.2024
Patent
Elektronische Ressource
Chinesisch
| Europäisches Patentamt | 2024
Zirconium oxide composition, zirconium oxide sintered body and preparation method
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| Europäisches Patentamt | 2024