Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Bionic glass ceramic composite material for false teeth and preparation method thereof
The invention relates to the field of false tooth materials, in particular to a zirconium oxide/lithium silicate or silicon dioxide glass ceramic composite material with a micro bionic structure for false teeth and a preparation method thereof. The composite material consists of 35 to 90 volume percent of zirconium oxide and the balance of lithium silicate or silicon dioxide glass, wherein the zirconium oxide is microscopically piled on a glass substrate in a lamellar form. The preparation method of the composite material comprises the following steps: firstly, preparing a zirconia ceramic skeleton with a directional porous lamellar structure based on a freeze casting process, then infiltrating the skeleton with a lithium silicate aqueous solution or silicon dioxide slurry, and airing; andfinally, carrying out mould pressing and sintering densification treatment on the framework to obtain the zirconium oxide/lithium silicate or zirconium oxide/silicon dioxide bionic glass ceramic composite material. The composite material shows good fracture toughness on the basis of keeping the hardness, strength, bio-compatibility and aesthetic effect of glass ceramic, so that the composite material has considerable application prospect as a novel false tooth material.
本发明涉及义齿材料领域，具体为一种具有微观仿生结构的义齿用氧化锆/硅酸锂或二氧化硅玻璃陶瓷复合材料及其制备方法。该复合材料由体积百分数为35％～90％的氧化锆和余量的硅酸锂或二氧化硅玻璃组成，微观上氧化锆以片层形式堆砌在玻璃基体上。该复合材料的制备方法为：首先基于冷冻铸造工艺制备具有定向多孔片层结构的氧化锆陶瓷骨架，然后利用硅酸锂水溶液或二氧化硅浆料浸渗该骨架并晾干，最后对骨架进行模压和烧结致密化处理得到氧化锆/硅酸锂或氧化锆/二氧化硅仿生玻璃陶瓷复合材料。该复合材料在保留玻璃陶瓷的硬度、强度、生物相容性和美学效果的基础上表现出良好的断裂韧性，因此作为新型义齿材料具有可观的应用前景。
Bionic glass ceramic composite material for false teeth and preparation method thereof
The invention relates to the field of false tooth materials, in particular to a zirconium oxide/lithium silicate or silicon dioxide glass ceramic composite material with a micro bionic structure for false teeth and a preparation method thereof. The composite material consists of 35 to 90 volume percent of zirconium oxide and the balance of lithium silicate or silicon dioxide glass, wherein the zirconium oxide is microscopically piled on a glass substrate in a lamellar form. The preparation method of the composite material comprises the following steps: firstly, preparing a zirconia ceramic skeleton with a directional porous lamellar structure based on a freeze casting process, then infiltrating the skeleton with a lithium silicate aqueous solution or silicon dioxide slurry, and airing; andfinally, carrying out mould pressing and sintering densification treatment on the framework to obtain the zirconium oxide/lithium silicate or zirconium oxide/silicon dioxide bionic glass ceramic composite material. The composite material shows good fracture toughness on the basis of keeping the hardness, strength, bio-compatibility and aesthetic effect of glass ceramic, so that the composite material has considerable application prospect as a novel false tooth material.
本发明涉及义齿材料领域，具体为一种具有微观仿生结构的义齿用氧化锆/硅酸锂或二氧化硅玻璃陶瓷复合材料及其制备方法。该复合材料由体积百分数为35％～90％的氧化锆和余量的硅酸锂或二氧化硅玻璃组成，微观上氧化锆以片层形式堆砌在玻璃基体上。该复合材料的制备方法为：首先基于冷冻铸造工艺制备具有定向多孔片层结构的氧化锆陶瓷骨架，然后利用硅酸锂水溶液或二氧化硅浆料浸渗该骨架并晾干，最后对骨架进行模压和烧结致密化处理得到氧化锆/硅酸锂或氧化锆/二氧化硅仿生玻璃陶瓷复合材料。该复合材料在保留玻璃陶瓷的硬度、强度、生物相容性和美学效果的基础上表现出良好的断裂韧性，因此作为新型义齿材料具有可观的应用前景。
Bionic glass ceramic composite material for false teeth and preparation method thereof
一种义齿用仿生玻璃陶瓷复合材料及其制备方法
LIU ZENGQIAN (Autor:in) / LIU YANYAN (Autor:in) / WANG FAHENG (Autor:in) / TAN GUOQI (Autor:in) / ZHANG ZHEFENG (Autor:in)
08.12.2020
Patent
Elektronische Ressource
Chinesisch
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