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Method for preparing yttrium-doped zirconium oxide hollow particles
The invention discloses a method for preparing yttrium-doped zirconium oxide hollow particles, and belongs to the technical field of heat insulation coatings and light composite materials. Comprising the following steps that S1, yttrium powder and zirconium oxide powder are mixed and granulated, and yttrium and zirconium oxide mixed powder granulated materials are obtained; s2, feeding the granulated yttrium and zirconium oxide mixed powder into hot plasma for oxidation sintering to form yttrium-doped zirconium oxide hollow particles; s3, the yttrium-doped zirconium oxide hollow particles enter a product collecting system under gas conveying. The thermal plasma transient high-temperature process is combined with metal oxidation combustion, the added metal yttrium is subjected to oxidation combustion in a micro-area, a micro-area high-temperature environment is provided, and solid solution of yttrium is facilitated; micro-area heat release and plasma heat are organically combined, sintering densification of zirconium oxide is promoted, micro-area oxidative combustion is beneficial for rapidly achieving surface densification of aggregate particles, and a closed surface is provided for forming a hollow structure; and internal micro-area oxidative combustion is beneficial to internal densification, and the strength of the hollow particles is improved.
本发明公开了一种制备钇掺杂的氧化锆空心颗粒的方法，属于隔热涂层及轻质复合材料技术领域。包括以下步骤：S1钇粉与氧化锆粉混合造粒，得到钇与氧化锆混合粉造粒料；S2把造粒的钇与氧化锆混合粉造粒料送入热等离子体中进行氧化烧结，形成钇掺杂的氧化锆空心颗粒；S3钇掺杂的氧化锆空心颗粒在气体输送下进入产物收集系统。本发明将热等离子体瞬态高温过程与金属氧化燃烧结合，添加的金属钇在微区氧化燃烧，提供微区高温环境，有助于钇的固溶；微区放热与等离子体热有机结合，促进氧化锆烧结致密化，微区氧化燃烧有助于快速实现团聚体颗粒表面致密化，为形成空心结构提供封闭表面；内部的微区氧化燃烧有助于内部致密化，提高空心颗粒强度。
Method for preparing yttrium-doped zirconium oxide hollow particles
The invention discloses a method for preparing yttrium-doped zirconium oxide hollow particles, and belongs to the technical field of heat insulation coatings and light composite materials. Comprising the following steps that S1, yttrium powder and zirconium oxide powder are mixed and granulated, and yttrium and zirconium oxide mixed powder granulated materials are obtained; s2, feeding the granulated yttrium and zirconium oxide mixed powder into hot plasma for oxidation sintering to form yttrium-doped zirconium oxide hollow particles; s3, the yttrium-doped zirconium oxide hollow particles enter a product collecting system under gas conveying. The thermal plasma transient high-temperature process is combined with metal oxidation combustion, the added metal yttrium is subjected to oxidation combustion in a micro-area, a micro-area high-temperature environment is provided, and solid solution of yttrium is facilitated; micro-area heat release and plasma heat are organically combined, sintering densification of zirconium oxide is promoted, micro-area oxidative combustion is beneficial for rapidly achieving surface densification of aggregate particles, and a closed surface is provided for forming a hollow structure; and internal micro-area oxidative combustion is beneficial to internal densification, and the strength of the hollow particles is improved.
本发明公开了一种制备钇掺杂的氧化锆空心颗粒的方法，属于隔热涂层及轻质复合材料技术领域。包括以下步骤：S1钇粉与氧化锆粉混合造粒，得到钇与氧化锆混合粉造粒料；S2把造粒的钇与氧化锆混合粉造粒料送入热等离子体中进行氧化烧结，形成钇掺杂的氧化锆空心颗粒；S3钇掺杂的氧化锆空心颗粒在气体输送下进入产物收集系统。本发明将热等离子体瞬态高温过程与金属氧化燃烧结合，添加的金属钇在微区氧化燃烧，提供微区高温环境，有助于钇的固溶；微区放热与等离子体热有机结合，促进氧化锆烧结致密化，微区氧化燃烧有助于快速实现团聚体颗粒表面致密化，为形成空心结构提供封闭表面；内部的微区氧化燃烧有助于内部致密化，提高空心颗粒强度。
Method for preparing yttrium-doped zirconium oxide hollow particles
一种制备钇掺杂的氧化锆空心颗粒的方法
YUAN FANGLI (author) / KIM HWA-SUNG (author) / DING FEI (author) / LI BAOQIANG (author)
2024-02-09
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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