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Microwave dielectric ceramic material with high dielectric constant
The invention provides a microwave dielectric ceramic material with a high dielectric constant. The microwave dielectric ceramic material comprises the following components in percentage by mass: 91-97% of a matrix material and 3-9% of a modified additive. The composition expression of the matrix material is Ba<6-3x>R<8+2x>Ti<18>O<54>, x is more than or equal to 0.1 and less than or equal to 1, and R is selected from one or two of Nd and Sm; and the modified additive comprises a first additive and a second additive, the first additive is selected from at least one of MgO, SiO2 and CaCO3, and the second additive is selected from one or two of Al2O3 and MnCO3. The invention also provides a preparation method of the high-dielectric-constant microwave dielectric ceramic material. The microwave dielectric ceramic material provided by the invention has the excellent properties of dielectric adjustable high dielectric constant, high quality factor, adjustable resonant frequency temperature coefficient in a near-zero range and high thermal shock resistance. In addition, the preparation method of the microwave dielectric ceramic material provided by the invention has the characteristics of simple preparation method and easiness in batch production.
本发明提供了一种高介电常数微波介质陶瓷材料，包括质量百分比为91％～97％的基体材料和质量百分比为3％～9％的改性添加剂；所述基体材料的组成表达式为Ba6‑3xR8+2xTi18O54，其中，0.1≤x≤1，R选自Nd和Sm中的一种或两种；所述改性添加剂包括第一添加剂和第二添加剂，所述第一添加剂选自MgO、SiO2和CaCO3中的至少一种，所述第二添加剂选自Al2O3和MnCO3中的一种或两种。还提供了一种高介电常数微波介质陶瓷材料的制备方法。本发明提供的微波介质陶瓷材料具有介电可调的高介电常数、高品质因数、近零范围内可调的谐振频率温度系数、高抗热震性的优异性能。并且，本发明提供的微波介质陶瓷材料的制备方法具有制备方法简便，易于批量生产的特点。
Microwave dielectric ceramic material with high dielectric constant
The invention provides a microwave dielectric ceramic material with a high dielectric constant. The microwave dielectric ceramic material comprises the following components in percentage by mass: 91-97% of a matrix material and 3-9% of a modified additive. The composition expression of the matrix material is Ba<6-3x>R<8+2x>Ti<18>O<54>, x is more than or equal to 0.1 and less than or equal to 1, and R is selected from one or two of Nd and Sm; and the modified additive comprises a first additive and a second additive, the first additive is selected from at least one of MgO, SiO2 and CaCO3, and the second additive is selected from one or two of Al2O3 and MnCO3. The invention also provides a preparation method of the high-dielectric-constant microwave dielectric ceramic material. The microwave dielectric ceramic material provided by the invention has the excellent properties of dielectric adjustable high dielectric constant, high quality factor, adjustable resonant frequency temperature coefficient in a near-zero range and high thermal shock resistance. In addition, the preparation method of the microwave dielectric ceramic material provided by the invention has the characteristics of simple preparation method and easiness in batch production.
本发明提供了一种高介电常数微波介质陶瓷材料，包括质量百分比为91％～97％的基体材料和质量百分比为3％～9％的改性添加剂；所述基体材料的组成表达式为Ba6‑3xR8+2xTi18O54，其中，0.1≤x≤1，R选自Nd和Sm中的一种或两种；所述改性添加剂包括第一添加剂和第二添加剂，所述第一添加剂选自MgO、SiO2和CaCO3中的至少一种，所述第二添加剂选自Al2O3和MnCO3中的一种或两种。还提供了一种高介电常数微波介质陶瓷材料的制备方法。本发明提供的微波介质陶瓷材料具有介电可调的高介电常数、高品质因数、近零范围内可调的谐振频率温度系数、高抗热震性的优异性能。并且，本发明提供的微波介质陶瓷材料的制备方法具有制备方法简便，易于批量生产的特点。
Microwave dielectric ceramic material with high dielectric constant
一种高介电常数微波介质陶瓷材料
PENG SHIQIANG (author) / WANG XIUHONG (author) / HUANG QINGHUAN (author) / YE RONG (author)
2021-11-09
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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