Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of yttrium oxide spraying powder
The invention discloses a preparation method of yttrium oxide spraying powder. According to the invention,high-quality yttrium oxide powder is prepared by using a high-purity soluble yttrium raw material and a two-step process, wherein in the first step, an improved chemical coprecipitation method is used for preparing an yttrium oxide powder precursor, the precursor is subjected to heat treatment for thermal decomposition to obtain the yttrium oxide powder, and the process aims at controlling the particle size and size distribution of the powder, and in the second step, the obtained yttrium oxide powder is subjected to hydrothermal treatment through a hydrothermal method technology, the morphology of yttrium oxide powder particles is mainly improved, the yttrium oxide powder particles are spherical or approximately spherical, and the granularity agglomeration state of the powder is regulated and controlled by controlling key factors such as a mineralizer, a surface modifier, solid content and the like; and the prepared yttrium oxide powder is good in dispersity and relatively uniform in particle size distribution, and the yttrium oxide powder prepared by adopting the preparation method disclosed by the invention is less in hard agglomeration and good in flowability.
本发明公开了一种氧化钇喷涂粉的制备方法，使用高纯可溶性钇原料，采用两步工艺途径制备氧化钇高质量氧化钇粉体。第一步用改进的化学共沉淀方法制备氧化钇粉体前驱体，在对前驱体进行热处理进行热分解获得氧化钇粉体，这一过程目的是控制粉料的颗粒尺寸及尺寸分布。第二步采用水热法技术对所获得的氧化钇粉进行水热处理，主要是完善氧化钇粉料颗粒的形貌，达到球形或接近球形；同时通过矿化剂、表面修饰剂及固含量等关键因素的控制对粉体颗粒度团聚状态进行调控。制备的氧化钇粉体分散性好，颗粒尺寸分布比较均匀，采用本发明制备方法制成的氧化钇粉体硬团聚少、流动性好。
Preparation method of yttrium oxide spraying powder
The invention discloses a preparation method of yttrium oxide spraying powder. According to the invention,high-quality yttrium oxide powder is prepared by using a high-purity soluble yttrium raw material and a two-step process, wherein in the first step, an improved chemical coprecipitation method is used for preparing an yttrium oxide powder precursor, the precursor is subjected to heat treatment for thermal decomposition to obtain the yttrium oxide powder, and the process aims at controlling the particle size and size distribution of the powder, and in the second step, the obtained yttrium oxide powder is subjected to hydrothermal treatment through a hydrothermal method technology, the morphology of yttrium oxide powder particles is mainly improved, the yttrium oxide powder particles are spherical or approximately spherical, and the granularity agglomeration state of the powder is regulated and controlled by controlling key factors such as a mineralizer, a surface modifier, solid content and the like; and the prepared yttrium oxide powder is good in dispersity and relatively uniform in particle size distribution, and the yttrium oxide powder prepared by adopting the preparation method disclosed by the invention is less in hard agglomeration and good in flowability.
本发明公开了一种氧化钇喷涂粉的制备方法，使用高纯可溶性钇原料，采用两步工艺途径制备氧化钇高质量氧化钇粉体。第一步用改进的化学共沉淀方法制备氧化钇粉体前驱体，在对前驱体进行热处理进行热分解获得氧化钇粉体，这一过程目的是控制粉料的颗粒尺寸及尺寸分布。第二步采用水热法技术对所获得的氧化钇粉进行水热处理，主要是完善氧化钇粉料颗粒的形貌，达到球形或接近球形；同时通过矿化剂、表面修饰剂及固含量等关键因素的控制对粉体颗粒度团聚状态进行调控。制备的氧化钇粉体分散性好，颗粒尺寸分布比较均匀，采用本发明制备方法制成的氧化钇粉体硬团聚少、流动性好。
Preparation method of yttrium oxide spraying powder
一种氧化钇喷涂粉的制备方法
KONG LINGBING (Autor:in)
03.09.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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