Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Zirconia ceramic with biological activity and low-temperature aging resistance and preparation method thereof
The invention discloses zirconia ceramic with biological activity and low-temperature aging resistance and a preparation method of the zirconia ceramic. The method comprises the following steps: preparing calcium-magnesium-silicon or calcium-silicon-phosphorus sol; preparing a pre-sintered zirconia ceramic matrix; preparing a zirconium oxide transition layer ceramic raw film with low-temperature aging resistance; preparing zirconia ceramic with a porous surface layer; and enabling the calcium-magnesium-silicon or calcium-silicon-phosphorus sol to permeate into the porous surface layer through a negative pressure permeation method, drying and then carrying out heat treatment to obtain the ceramic. According to the invention, the bioactive substance is loaded in the structure of the zirconium oxide porous surface layer, so that the biological activity of the zirconium oxide ceramic is improved; by constructing the low-temperature aging-resistant transition layer, the low-temperature aging resistance of the zirconia ceramic is improved, and the long-term stability of the material is ensured; the porous surface layer, the low-temperature aging resistant transition layer and the zirconia matrix are combined and then fired in one step, and the problems that a traditional coating and a matrix interface are low in bonding strength and prone to cracking and stripping are solved.
本发明公开了一种兼具生物活性和抗低温老化的氧化锆陶瓷及其制备方法。该方法包括：制备钙镁硅或钙硅磷溶胶；制备预烧结氧化锆陶瓷基体；制备具有抗低温老化的氧化锆过渡层陶瓷生膜；制备具有多孔表层的氧化锆陶瓷；通过负压渗透法，使钙镁硅或钙硅磷溶胶渗透入多孔表层中，经干燥后进行热处理，得到该陶瓷。本发明通过将生物活性物质负载在氧化锆多孔表层的结构中，提升氧化锆陶瓷的生物活性；通过构建抗低温老化过渡层，改善了氧化锆陶瓷抗低温老化能力，保证了材料的长期稳定性；多孔表层、抗低温老化过渡层与氧化锆基体结合后一步烧成，解决了传统涂层与基体界面结合强度低、易开裂剥落的难题。
Zirconia ceramic with biological activity and low-temperature aging resistance and preparation method thereof
The invention discloses zirconia ceramic with biological activity and low-temperature aging resistance and a preparation method of the zirconia ceramic. The method comprises the following steps: preparing calcium-magnesium-silicon or calcium-silicon-phosphorus sol; preparing a pre-sintered zirconia ceramic matrix; preparing a zirconium oxide transition layer ceramic raw film with low-temperature aging resistance; preparing zirconia ceramic with a porous surface layer; and enabling the calcium-magnesium-silicon or calcium-silicon-phosphorus sol to permeate into the porous surface layer through a negative pressure permeation method, drying and then carrying out heat treatment to obtain the ceramic. According to the invention, the bioactive substance is loaded in the structure of the zirconium oxide porous surface layer, so that the biological activity of the zirconium oxide ceramic is improved; by constructing the low-temperature aging-resistant transition layer, the low-temperature aging resistance of the zirconia ceramic is improved, and the long-term stability of the material is ensured; the porous surface layer, the low-temperature aging resistant transition layer and the zirconia matrix are combined and then fired in one step, and the problems that a traditional coating and a matrix interface are low in bonding strength and prone to cracking and stripping are solved.
本发明公开了一种兼具生物活性和抗低温老化的氧化锆陶瓷及其制备方法。该方法包括：制备钙镁硅或钙硅磷溶胶；制备预烧结氧化锆陶瓷基体；制备具有抗低温老化的氧化锆过渡层陶瓷生膜；制备具有多孔表层的氧化锆陶瓷；通过负压渗透法，使钙镁硅或钙硅磷溶胶渗透入多孔表层中，经干燥后进行热处理，得到该陶瓷。本发明通过将生物活性物质负载在氧化锆多孔表层的结构中，提升氧化锆陶瓷的生物活性；通过构建抗低温老化过渡层，改善了氧化锆陶瓷抗低温老化能力，保证了材料的长期稳定性；多孔表层、抗低温老化过渡层与氧化锆基体结合后一步烧成，解决了传统涂层与基体界面结合强度低、易开裂剥落的难题。
Zirconia ceramic with biological activity and low-temperature aging resistance and preparation method thereof
一种兼具生物活性和抗低温老化的氧化锆陶瓷及其制备方法
YE JIANDONG (Autor:in) / HE QIXUAN (Autor:in) / ZHANG WENMIN (Autor:in)
14.07.2023
Patent
Elektronische Ressource
Chinesisch
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