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Low-temperature sintered modified molybdenum-based microwave dielectric ceramic and preparation method thereof
The invention discloses a low-temperature sintered modified molybdenum-based microwave dielectric ceramic and a preparation method thereof, and belongs to the technical field of microwave dielectric ceramic production, the raw materials of the modified molybdenum-based microwave dielectric ceramic are Al2O3, MoO3, MnCO3 and TiO2, the chemical formula of the modified molybdenum-based microwave dielectric ceramic is Al2Mo3-x (MnTi) xO12, x = 0.01-0.02; the preparation method of the modified molybdenum-based microwave dielectric ceramic comprises the following steps: preparing materials; carrying out ball milling, drying, sieving and pre-sintering; carrying out ball milling again, drying and granulating; the low-temperature sintered modified molybdenum-based microwave dielectric ceramic is prepared through the steps of mixing the raw materials, performing compression molding, discharging glue and preserving heat, and the chemical formula of the low-temperature sintered modified molybdenum-based microwave dielectric ceramic is Al2Mo3-x (MnTi) xO12, and x is 0.01-0.02. The crystal lattice position of Mo is partially replaced by (MnTi) 6 + composite ions, by means of the characteristic of low melting point of MnCO3, the optimal sintering temperature is reduced while the crystal structure of Al2Mo3O12 is not changed, and finally the excellent microwave dielectric property of the system is achieved at the lower sintering temperature (725 DEG C).
本发明公开了一种低温烧结的改性钼基微波介质陶瓷及其制备方法，属于微波介质陶瓷的生产技术领域，改性钼基微波介质陶瓷的原料为Al2O3、MoO3、MnCO3和TiO2，其化学式为Al2Mo3‑x(MnTi)xO12，其中x＝0.01～0.02；改性钼基微波介质陶瓷的制备方法，包括以下步骤：配料；球磨，烘干，过筛，预烧；再次入球磨，烘干，造粒；压制成型，排胶，保温，制得低温烧结的改性钼基微波介质陶瓷，其化学式为Al2Mo3‑x(MnTi)xO12，其中x＝0.01～0.02。本发明利用(MnTi)6+复合离子部分取代Mo的晶格位置，借助于MnCO3低熔点的特性，在不改变Al2Mo3O12晶体结构的同时降低了其最佳烧结温度，最终该体系在更低烧结温度(725℃)下实现了优异微波介电性能。
Low-temperature sintered modified molybdenum-based microwave dielectric ceramic and preparation method thereof
The invention discloses a low-temperature sintered modified molybdenum-based microwave dielectric ceramic and a preparation method thereof, and belongs to the technical field of microwave dielectric ceramic production, the raw materials of the modified molybdenum-based microwave dielectric ceramic are Al2O3, MoO3, MnCO3 and TiO2, the chemical formula of the modified molybdenum-based microwave dielectric ceramic is Al2Mo3-x (MnTi) xO12, x = 0.01-0.02; the preparation method of the modified molybdenum-based microwave dielectric ceramic comprises the following steps: preparing materials; carrying out ball milling, drying, sieving and pre-sintering; carrying out ball milling again, drying and granulating; the low-temperature sintered modified molybdenum-based microwave dielectric ceramic is prepared through the steps of mixing the raw materials, performing compression molding, discharging glue and preserving heat, and the chemical formula of the low-temperature sintered modified molybdenum-based microwave dielectric ceramic is Al2Mo3-x (MnTi) xO12, and x is 0.01-0.02. The crystal lattice position of Mo is partially replaced by (MnTi) 6 + composite ions, by means of the characteristic of low melting point of MnCO3, the optimal sintering temperature is reduced while the crystal structure of Al2Mo3O12 is not changed, and finally the excellent microwave dielectric property of the system is achieved at the lower sintering temperature (725 DEG C).
本发明公开了一种低温烧结的改性钼基微波介质陶瓷及其制备方法，属于微波介质陶瓷的生产技术领域，改性钼基微波介质陶瓷的原料为Al2O3、MoO3、MnCO3和TiO2，其化学式为Al2Mo3‑x(MnTi)xO12，其中x＝0.01～0.02；改性钼基微波介质陶瓷的制备方法，包括以下步骤：配料；球磨，烘干，过筛，预烧；再次入球磨，烘干，造粒；压制成型，排胶，保温，制得低温烧结的改性钼基微波介质陶瓷，其化学式为Al2Mo3‑x(MnTi)xO12，其中x＝0.01～0.02。本发明利用(MnTi)6+复合离子部分取代Mo的晶格位置，借助于MnCO3低熔点的特性，在不改变Al2Mo3O12晶体结构的同时降低了其最佳烧结温度，最终该体系在更低烧结温度(725℃)下实现了优异微波介电性能。
Low-temperature sintered modified molybdenum-based microwave dielectric ceramic and preparation method thereof
一种低温烧结的改性钼基微波介质陶瓷及其制备方法
XIONG ZHE (Autor:in) / GAO XIUHUA (Autor:in) / YAO QIANG (Autor:in) / YANG ZHAO (Autor:in) / LI SHOUCHUAN (Autor:in) / LUO JIEYU (Autor:in)
20.02.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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