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Nano-powder toughened zirconia ceramic with core-shell structure and preparation method of nano-powder toughened zirconia ceramic
The invention discloses a core-shell structure nano-powder toughened zirconia ceramic and a preparation method thereof, and belongs to the technical field of ceramic materials.The method comprises the steps that three-dimensional network gel is adopted for wrapping to prepare high-activity ZrO2-coated SiO2 core-shell structure nano-zirconia raw material powder in a washing-free coprecipitation mode, the nano-zirconia raw material powder and a stabilizer are mixed, subjected to ball milling, dried, sieved and formed, and the core-shell structure nano-powder toughened zirconia ceramic is obtained. And carrying out cold isostatic pressing to obtain a biscuit, sintering the biscuit in a vacuum furnace, and annealing to obtain a toughened zirconia ceramic target product, thereby realizing the efficient preparation of the integrated transparent jade-texture simulation ceramic tooth. According to the method, the step of repeatedly washing the precursor in the traditional coprecipitation preparation process is avoided, introduction of impurities is reduced, the sintering temperature is lower, the powder yield is high, the process is simple, the cost is low, and the method is suitable for industrial production of toughened zirconia ceramics.
本发明公开了一种核壳结构纳米粉体增韧氧化锆陶瓷及其制备方法，属于陶瓷材料技术领域，该方法包括采用三维网络凝胶包裹以实现免洗涤共沉淀方式制备高活性、ZrO2@SiO2核壳结构的纳米氧化锆原料粉体，与稳定剂混合球磨，干燥、过筛、成型，冷等静压得到素坯，将素坯置于真空炉中烧结、退火得到增韧氧化锆陶瓷目标产品，实现了一体通透的玉质感仿真陶瓷牙齿的高效制备。本发明避免了传统共沉淀制备过程对前驱体反复洗涤步骤，减少了杂质的引入，烧结温度更低，粉体产量高、工艺简单、成本低，适用于增韧氧化锆陶瓷的产业化生产。
Nano-powder toughened zirconia ceramic with core-shell structure and preparation method of nano-powder toughened zirconia ceramic
The invention discloses a core-shell structure nano-powder toughened zirconia ceramic and a preparation method thereof, and belongs to the technical field of ceramic materials.The method comprises the steps that three-dimensional network gel is adopted for wrapping to prepare high-activity ZrO2-coated SiO2 core-shell structure nano-zirconia raw material powder in a washing-free coprecipitation mode, the nano-zirconia raw material powder and a stabilizer are mixed, subjected to ball milling, dried, sieved and formed, and the core-shell structure nano-powder toughened zirconia ceramic is obtained. And carrying out cold isostatic pressing to obtain a biscuit, sintering the biscuit in a vacuum furnace, and annealing to obtain a toughened zirconia ceramic target product, thereby realizing the efficient preparation of the integrated transparent jade-texture simulation ceramic tooth. According to the method, the step of repeatedly washing the precursor in the traditional coprecipitation preparation process is avoided, introduction of impurities is reduced, the sintering temperature is lower, the powder yield is high, the process is simple, the cost is low, and the method is suitable for industrial production of toughened zirconia ceramics.
本发明公开了一种核壳结构纳米粉体增韧氧化锆陶瓷及其制备方法，属于陶瓷材料技术领域，该方法包括采用三维网络凝胶包裹以实现免洗涤共沉淀方式制备高活性、ZrO2@SiO2核壳结构的纳米氧化锆原料粉体，与稳定剂混合球磨，干燥、过筛、成型，冷等静压得到素坯，将素坯置于真空炉中烧结、退火得到增韧氧化锆陶瓷目标产品，实现了一体通透的玉质感仿真陶瓷牙齿的高效制备。本发明避免了传统共沉淀制备过程对前驱体反复洗涤步骤，减少了杂质的引入，烧结温度更低，粉体产量高、工艺简单、成本低，适用于增韧氧化锆陶瓷的产业化生产。
Nano-powder toughened zirconia ceramic with core-shell structure and preparation method of nano-powder toughened zirconia ceramic
一种核壳结构纳米粉体增韧氧化锆陶瓷及其制备方法
30.04.2024
Patent
Elektronische Ressource
Chinesisch
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