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Yttrium iron garnet nano-powder as well as preparation method and application thereof
The invention discloses yttrium iron garnet nano-powder and a preparation method and application thereof.The preparation method comprises the steps that yttrium nitrate hexahydrate, ferric nitrate nonahydrate, citric acid and glycine are taken, water is added to prepare a mixed solution, the mixed solution is heated to be in a micro-boiling state, along with heating, a reaction system becomes viscous and begins to bubble, and the yttrium iron garnet nano-powder is obtained; and then burning to generate a fluffy product, and carrying out heat preservation heat treatment on the fluffy product to obtain the high-purity yttrium iron garnet nano powder. According to the method, a glycine-citric acid composite fuel/complexing agent system is adopted, so that the heat treatment temperature for obtaining the YIG powder with relatively high purity can be reduced. The method for preparing the YIG powder is simple in process and high in repeatability, and the heat treatment temperature can be lowered to 900 DEG C, so that energy is saved; the YIG powder prepared by the method is relatively high in purity, good in crystallinity and relatively high in saturation magnetization. The yttrium iron garnet nano-powder is sintered to prepare the ceramic, and then the ceramic is applied to the microwave circulator.
本发明公开了一种钇铁石榴石纳米粉体及其制备方法和应用，包括取六水合硝酸钇、九水合硝酸铁、柠檬酸和甘氨酸加水配置成混合溶液，将混合溶液加热，使得混合溶液处于微沸状态，随着加热的进行，反应体系变得粘稠并开始鼓泡，随后燃烧生成蓬松状产物，将蓬松状产物进行保温热处理，得到高纯度的钇铁石榴石纳米粉体。本发明采用甘氨酸‑柠檬酸复合燃料/络合剂体系，可以降低获得纯度较高YIG粉体的热处理温度。本发明中制备YIG粉体的方法，其工艺简单，可重复性高，并且热处理温度可低至900℃，从而节省能源；本发明制备的YIG粉体纯度较高、结晶性良好，且饱和磁化强度较高。本发明将钇铁石榴石纳米粉体烧结制备陶瓷后应用在微波环形器中。
Yttrium iron garnet nano-powder as well as preparation method and application thereof
The invention discloses yttrium iron garnet nano-powder and a preparation method and application thereof.The preparation method comprises the steps that yttrium nitrate hexahydrate, ferric nitrate nonahydrate, citric acid and glycine are taken, water is added to prepare a mixed solution, the mixed solution is heated to be in a micro-boiling state, along with heating, a reaction system becomes viscous and begins to bubble, and the yttrium iron garnet nano-powder is obtained; and then burning to generate a fluffy product, and carrying out heat preservation heat treatment on the fluffy product to obtain the high-purity yttrium iron garnet nano powder. According to the method, a glycine-citric acid composite fuel/complexing agent system is adopted, so that the heat treatment temperature for obtaining the YIG powder with relatively high purity can be reduced. The method for preparing the YIG powder is simple in process and high in repeatability, and the heat treatment temperature can be lowered to 900 DEG C, so that energy is saved; the YIG powder prepared by the method is relatively high in purity, good in crystallinity and relatively high in saturation magnetization. The yttrium iron garnet nano-powder is sintered to prepare the ceramic, and then the ceramic is applied to the microwave circulator.
本发明公开了一种钇铁石榴石纳米粉体及其制备方法和应用，包括取六水合硝酸钇、九水合硝酸铁、柠檬酸和甘氨酸加水配置成混合溶液，将混合溶液加热，使得混合溶液处于微沸状态，随着加热的进行，反应体系变得粘稠并开始鼓泡，随后燃烧生成蓬松状产物，将蓬松状产物进行保温热处理，得到高纯度的钇铁石榴石纳米粉体。本发明采用甘氨酸‑柠檬酸复合燃料/络合剂体系，可以降低获得纯度较高YIG粉体的热处理温度。本发明中制备YIG粉体的方法，其工艺简单，可重复性高，并且热处理温度可低至900℃，从而节省能源；本发明制备的YIG粉体纯度较高、结晶性良好，且饱和磁化强度较高。本发明将钇铁石榴石纳米粉体烧结制备陶瓷后应用在微波环形器中。
Yttrium iron garnet nano-powder as well as preparation method and application thereof
一种钇铁石榴石纳米粉体及其制备方法和应用
LIU GUIXIANG (author) / DAI BO (author) / REN YONG (author) / XU FANG (author) / YUAN XINGWU (author) / WANG JUNJIA (author) / LI WEI (author)
2024-02-27
Patent
Electronic Resource
Chinese
IPC:
C01G
Verbindungen der von den Unterklassen C01D oder C01F nicht umfassten Metalle
,
COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
/
B82Y
Bestimmter Gebrauch oder bestimmte Anwendung von Nanostrukturen
,
SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES
/
C04B
Kalk
,
LIME
/
H01P
WAVEGUIDES
,
Wellenleiter [Hohlleiter]
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