Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of high-performance composite zirconium oxide powder
The invention discloses a preparation method of high-performance composite zirconium oxide powder. The preparation method comprises the step of microcrystalline induced precipitation: adding the prepared zirconium oxychloride solution into a reactor and adding zirconium oxide microcrystals and a dispersing agent, controlling the temperature of the reactor to be 50-80 DEG C, slowly adding 8-12wt% of ammonia water into the reactor after uniformly stirring at a constant temperature, after the pH value of the system reaches 3-4, adding a prepared yttrium chloride solution into the reactor according to the molar percentage of elements in the composite zirconium oxide, continuously stirring at constant temperature, adding ammonia water until the pH value of the system reaches 10-11, finishing feeding, continuously stirring while keeping the temperature, and precipitating after complete reaction to obtain a precipitate product; centrifugally washing and settling; dispersing by a nano-mill; performing drying; calcining and stablizing; and sanding to obtain the finished product. The powder prepared by the method is high in purity, controllable in particle size, uniform in distribution, highin crystallinity and excellent in performance so that the sintering temperature of a ceramic product is obviously reduced compared with the prior art, and the transmissivity of the ceramic product isobviously improved.
本发明公开了一种高性能复合氧化锆粉体的制备方法，包括以下微晶诱导沉淀：将配置好的氯氧化锆溶液加入到反应器中，同时加入氧化锆微晶和分散剂，反应器的温度控制在50～80℃，恒温搅拌均匀后向反应器中缓慢加入8～12wt％的氨水，待体系的pH值达到3～4以后，再按照复合氧化锆中元素的摩尔百分比向反应器中加入配置好的氯化钇溶液，继续恒温搅拌并添加氨水直至体系的pH值达到10～11，结束投料，继续保温搅拌待其完全反应后，再沉化制得沉淀产物；离心洗涤沉降；纳米磨分散；干燥；煅烧稳定；砂磨成品。本发明制得的粉末纯度高、粒度可控且分布均匀、结晶度高、性能优良，因此其陶瓷制品的烧结温度相比现有技术下降明显，同时陶瓷制品的透度明显提高。
Preparation method of high-performance composite zirconium oxide powder
The invention discloses a preparation method of high-performance composite zirconium oxide powder. The preparation method comprises the step of microcrystalline induced precipitation: adding the prepared zirconium oxychloride solution into a reactor and adding zirconium oxide microcrystals and a dispersing agent, controlling the temperature of the reactor to be 50-80 DEG C, slowly adding 8-12wt% of ammonia water into the reactor after uniformly stirring at a constant temperature, after the pH value of the system reaches 3-4, adding a prepared yttrium chloride solution into the reactor according to the molar percentage of elements in the composite zirconium oxide, continuously stirring at constant temperature, adding ammonia water until the pH value of the system reaches 10-11, finishing feeding, continuously stirring while keeping the temperature, and precipitating after complete reaction to obtain a precipitate product; centrifugally washing and settling; dispersing by a nano-mill; performing drying; calcining and stablizing; and sanding to obtain the finished product. The powder prepared by the method is high in purity, controllable in particle size, uniform in distribution, highin crystallinity and excellent in performance so that the sintering temperature of a ceramic product is obviously reduced compared with the prior art, and the transmissivity of the ceramic product isobviously improved.
本发明公开了一种高性能复合氧化锆粉体的制备方法，包括以下微晶诱导沉淀：将配置好的氯氧化锆溶液加入到反应器中，同时加入氧化锆微晶和分散剂，反应器的温度控制在50～80℃，恒温搅拌均匀后向反应器中缓慢加入8～12wt％的氨水，待体系的pH值达到3～4以后，再按照复合氧化锆中元素的摩尔百分比向反应器中加入配置好的氯化钇溶液，继续恒温搅拌并添加氨水直至体系的pH值达到10～11，结束投料，继续保温搅拌待其完全反应后，再沉化制得沉淀产物；离心洗涤沉降；纳米磨分散；干燥；煅烧稳定；砂磨成品。本发明制得的粉末纯度高、粒度可控且分布均匀、结晶度高、性能优良，因此其陶瓷制品的烧结温度相比现有技术下降明显，同时陶瓷制品的透度明显提高。
Preparation method of high-performance composite zirconium oxide powder
一种高性能复合氧化锆粉体的制备方法
WANG ZHICHENG ( Autor:in ) / WANG YANG ( Autor:in ) / HUANG YONGBING ( Autor:in ) / LIU GUANPENG ( Autor:in ) / TAO SHI ( Autor:in ) / ZHANG HUIGUO ( Autor:in ) / QIAN BIN ( Autor:in )
28.04.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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