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Method for microwave synthesis of 4YSZ nano zirconia thermal barrier coating powder
The invention discloses a method for microwave synthesis of 4YSZ nano zirconia thermal barrier coating powder. The method comprises the following steps: preparing a precursor; carrying out vacuumizing treatment on the precursor under heating and stirring conditions, stopping vacuumizing when crystal water in the solution forms a gas-liquid saturated stable state, and keeping the gas-liquid saturated stable state; introducing the mixture in the gas-liquid saturated stable state into microwaves to remove organic matters so as to form an yttrium-zirconium uniformly mixed amorphous solid; and carrying out residual organic matter removal treatment on the amorphous solid substance to generate the 4YSZ powder. The method disclosed by the invention has the beneficial effects that the problem of zirconium ion hydrolysis is solved, preliminary uniform mixing of zirconium ions and yttrium ions is realized, the yttrium-zirconium solid solution is realized by utilizing microwaves, the hydrolysis of zirconium is avoided, and the uniform mixing of each component in an atomic state is realized, so that the obtained thermal barrier coating powder is uniform in grain size, good in stability, high in purity and suitable for stable and efficient production.
本发明公开了一种微波合成4YSZ纳米氧化锆热障涂层粉体的方法，其包括以下步骤：配制前驱体；在加热、搅拌条件下，对上述前驱体进行抽真空处理，待溶液中的结晶水形成气液饱和稳定状态停止抽真空，并保持气液饱和稳定状态；将气液饱和稳定状态的混合体导入微波脱除有机物形成钇锆均匀混合无定形固态物；对上述无定形固态物进行脱除残余有机物处理，生成4YSZ粉体。本发明的有益效果为：本发明所述的方法利用解决了锆离子水解的问题，实现了锆离子和钇离子的初步均匀混合，利用微波实现钇锆固溶体；避免了锆的水解，实现各组分原子状态下的均匀混合，使得到的热障涂层粉体晶粒尺度均一，稳定性好、纯度高，适合稳定高效生产。
Method for microwave synthesis of 4YSZ nano zirconia thermal barrier coating powder
The invention discloses a method for microwave synthesis of 4YSZ nano zirconia thermal barrier coating powder. The method comprises the following steps: preparing a precursor; carrying out vacuumizing treatment on the precursor under heating and stirring conditions, stopping vacuumizing when crystal water in the solution forms a gas-liquid saturated stable state, and keeping the gas-liquid saturated stable state; introducing the mixture in the gas-liquid saturated stable state into microwaves to remove organic matters so as to form an yttrium-zirconium uniformly mixed amorphous solid; and carrying out residual organic matter removal treatment on the amorphous solid substance to generate the 4YSZ powder. The method disclosed by the invention has the beneficial effects that the problem of zirconium ion hydrolysis is solved, preliminary uniform mixing of zirconium ions and yttrium ions is realized, the yttrium-zirconium solid solution is realized by utilizing microwaves, the hydrolysis of zirconium is avoided, and the uniform mixing of each component in an atomic state is realized, so that the obtained thermal barrier coating powder is uniform in grain size, good in stability, high in purity and suitable for stable and efficient production.
本发明公开了一种微波合成4YSZ纳米氧化锆热障涂层粉体的方法，其包括以下步骤：配制前驱体；在加热、搅拌条件下，对上述前驱体进行抽真空处理，待溶液中的结晶水形成气液饱和稳定状态停止抽真空，并保持气液饱和稳定状态；将气液饱和稳定状态的混合体导入微波脱除有机物形成钇锆均匀混合无定形固态物；对上述无定形固态物进行脱除残余有机物处理，生成4YSZ粉体。本发明的有益效果为：本发明所述的方法利用解决了锆离子水解的问题，实现了锆离子和钇离子的初步均匀混合，利用微波实现钇锆固溶体；避免了锆的水解，实现各组分原子状态下的均匀混合，使得到的热障涂层粉体晶粒尺度均一，稳定性好、纯度高，适合稳定高效生产。
Method for microwave synthesis of 4YSZ nano zirconia thermal barrier coating powder
微波合成4YSZ纳米氧化锆热障涂层粉体的方法
YANG XIAODONG (author) / MIAO RUN (author)
2021-12-21
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Grain Size and Thermal Conductivity of Nano - Zirconia Thermal Barrier Coating
| British Library Online Contents | 2006
Characterization of a zirconia-yttria-titania thermal barrier coating
| British Library Online Contents | 1994