Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention belongs to the technical field of zirconia ceramics, and particularly relates to a preparation method of zirconia ceramics. The method comprises: crushing zircon sand to 500 meshes to 600 meshes, adding gtetragonal phase stable zirconia powder and sodium carbonate, and carrying out ball milling treatment to prepare mixed powder; uniformly stirring and mixing alpha-Al2O3, a dispersingagent and deionized water at a speed of 300-500 r/min to prepare a dispersion liquid; adding the mixed powder into the dispersion liquid, stirring for 3.5-5.5 hours at a temperature of 150-200 DEG C,then carrying out heat preservation reaction for 2-3 hours at a temperature of 400-500 DEG C, and finally drying and dehydrating to prepare zirconium oxide powder; pressing into a zirconia ceramic green body by adopting a zirconia powder forming process, and roasting at high temperature to prepare the zirconia ceramic. The zirconium oxide ceramic prepared by adopting the preparation method disclosed by the invention has good mechanical properties and excellent aging resistance, stability and fracture toughness.
本发明属于氧化锆陶瓷技术领域，具体的涉及一种氧化锆陶瓷的制备方法。锆英砂粉碎至500‑600目，加入四方相稳定氧化锆粉体和碳酸钠进行球磨处理，制备得到混合粉体；将α‑Al2O3、分散剂及去离子水以300‑500r/min的速度搅拌混合均匀，制备得到分散液；将混合粉体加入到分散液中，于150‑200℃的温度下，搅拌3.5‑5.5h，然后于400‑500℃的温度下保温反应2‑3h，最后经烘干脱水后，制备得到氧化锆粉体；采用氧化锆粉体成型工艺压制成为氧化锆陶瓷坯体，经高温焙烧，制备得到氧化锆陶瓷。采用本发明所述的制备方法制备的氧化锆陶瓷，具有良好的机械性能，抗老化性、稳定性及断裂韧性优良。
The invention belongs to the technical field of zirconia ceramics, and particularly relates to a preparation method of zirconia ceramics. The method comprises: crushing zircon sand to 500 meshes to 600 meshes, adding gtetragonal phase stable zirconia powder and sodium carbonate, and carrying out ball milling treatment to prepare mixed powder; uniformly stirring and mixing alpha-Al2O3, a dispersingagent and deionized water at a speed of 300-500 r/min to prepare a dispersion liquid; adding the mixed powder into the dispersion liquid, stirring for 3.5-5.5 hours at a temperature of 150-200 DEG C,then carrying out heat preservation reaction for 2-3 hours at a temperature of 400-500 DEG C, and finally drying and dehydrating to prepare zirconium oxide powder; pressing into a zirconia ceramic green body by adopting a zirconia powder forming process, and roasting at high temperature to prepare the zirconia ceramic. The zirconium oxide ceramic prepared by adopting the preparation method disclosed by the invention has good mechanical properties and excellent aging resistance, stability and fracture toughness.
本发明属于氧化锆陶瓷技术领域，具体的涉及一种氧化锆陶瓷的制备方法。锆英砂粉碎至500‑600目，加入四方相稳定氧化锆粉体和碳酸钠进行球磨处理，制备得到混合粉体；将α‑Al2O3、分散剂及去离子水以300‑500r/min的速度搅拌混合均匀，制备得到分散液；将混合粉体加入到分散液中，于150‑200℃的温度下，搅拌3.5‑5.5h，然后于400‑500℃的温度下保温反应2‑3h，最后经烘干脱水后，制备得到氧化锆粉体；采用氧化锆粉体成型工艺压制成为氧化锆陶瓷坯体，经高温焙烧，制备得到氧化锆陶瓷。采用本发明所述的制备方法制备的氧化锆陶瓷，具有良好的机械性能，抗老化性、稳定性及断裂韧性优良。
Zirconia ceramic preparation method and zirconia ceramic identification card
| Europäisches Patentamt | 2022
| Europäisches Patentamt | 2024