Microwave dielectric ceramic material as well as preparation method and application thereof

A technology of microwave dielectric ceramics and applications, which is applied in the field of microwave dielectric ceramic materials and its preparation, and can solve the problems of high dielectric constant and sintering temperature of microwave dielectric ceramic materials, limited use of microwave communication devices, etc.

Active Publication Date: 2020-10-23
YANCHUANG PHOTOELECTRIC TECH GANZHOU
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the dielectric constant and sintering temperature of microwave dielectric ceramic materials are still high,

Method used

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  • Microwave dielectric ceramic material as well as preparation method and application thereof
  • Microwave dielectric ceramic material as well as preparation method and application thereof
  • Microwave dielectric ceramic material as well as preparation method and application thereof

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Embodiment 1-7

[0036] The present embodiment 1-7 provides a kind of microwave dielectric ceramic material, adopts Zn 3 B 2 o 6 and Mg 3 B 2 o 6 Two materials, Zn 3 B 2 o 6 and Mg 3 B 2 o 6 The molar ratio of is (1-x):x, wherein, x=0.05~0.40. Prepared from the oxides of the components in the following mole percentages:

[0037] Main ingredient ZnO, 71.25-45.00%;

[0038] Main ingredient B 2 o 3 , 25.00%;

[0039] Substituting material MgO, 3.75-30.00%;

[0040] The sum of the molar percentages of the above components is 100%, and the molar ratio of the ZnO to the MgO is (0.95:0.05)˜(0.60:0.40).

[0041] The molar percentages of oxides in each embodiment are specifically shown in Table 1.

[0042] Such as figure 1 As shown, its preparation method comprises the steps of batching, primary ball milling, pre-calcination, secondary ball milling, and low-temperature sintering, specifically comprising the following steps:

[0043] S1, using the oxide method to prepare (1-x)Zn accor...

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Abstract

The invention provides a microwave dielectric ceramic material as well as a preparation method and application thereof. The microwave dielectric ceramic material comprises two materials, namely Zn3B2O6 and Mg3B2O6, the molar ratio of Zn3B2O6 to Mg3B2O6 is (1-x): x, and x is equal to 0.05-0.40. The microwave dielectric ceramic material is prepared from the following oxides in percentage by mole: 71.25-45.00% of a main material ZnO, 25.00% of a main material B2O3, and 3.75-30.00% of a substitute material MgO, wherein the sum of the molar percentages of the components is 100%, and the molar ratioof ZnO to MgO is (0.95: 0.05)-(0.60: 0.40). The microwave dielectric ceramic material has the excellent characteristics of low dielectric constant, high quality factor, high relative density, relatively stable temperature characteristic and low densification temperature.

Description

【Technical field】 [0001] The invention relates to the technical field of microwave dielectric ceramic materials, in particular to a microwave dielectric ceramic material and its preparation method and application. 【Background technique】 [0002] Low-temperature co-fired ceramic (LTCC) technology has attracted widespread interest from researchers due to its ability to perform large-scale three-dimensional integration with passive devices. Since the melting point of silver is 961°C, the maximum temperature of the LTCC process should be lower than its melting point. In addition, materials used in the field of microwave communication should also have a low dielectric constant (ε r ) and high quality factor (Q×f). Therefore, a low ε r , ceramics with high Q×f and low densification temperature have great potential application value in the field of LTCC. [0003] Zn 3 B 2 o 6 When (ZBO) ceramics are sintered at 925°C, their dielectric properties are as follows, ε r =6.7, Q×...

Claims

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Application Information

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IPC IPC(8): C04B35/453C04B35/622
CPCC04B35/453C04B35/622C04B2235/3206C04B2235/3409C04B2235/6562C04B2235/6567C04B2235/661C04B2235/77
Inventor 肖明
Owner YANCHUANG PHOTOELECTRIC TECH GANZHOU
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