Microwave dielectric ceramic material applicable to low temperature sintering and preparation method of microwave dielectric ceramic material

A technology of microwave dielectric ceramics and low-temperature sintering, which is applied in the field of functional ceramic materials, can solve the problem of high raw material cost, and achieve the effects of low raw material cost, low cost, and low energy consumption

Active Publication Date: 2013-11-27
无锡鑫圣慧龙纳米陶瓷技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But the ceramic material contains relatively expensive Sm and La, so the cost of raw materials is high

Method used

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  • Microwave dielectric ceramic material applicable to low temperature sintering and preparation method of microwave dielectric ceramic material
  • Microwave dielectric ceramic material applicable to low temperature sintering and preparation method of microwave dielectric ceramic material
  • Microwave dielectric ceramic material applicable to low temperature sintering and preparation method of microwave dielectric ceramic material

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Embodiment

[0045] The microwave dielectric ceramic material prepared in the embodiment of the present invention includes 80-99.5wt% of the main material and 0.5-20wt% of the auxiliary material, wherein the main material includes aBaO-bTiO 2 -cZrO 2 , a, b and c are the molar percentages in the main material, 5%≤a≤35%, 65%≤b≤95%, 0%≤c≤15%, the auxiliary materials include CuO, ZnO, MnO 2 、Ni 2 o 3 or TiO 2 1 or a combination of at least 2 of them. The specific composition of the main ingredients is shown in Table 1. Among them, the raw material of the main material is BaCO 3 、TiO 2 and ZrO 2 Powder. The specific composition of the microwave dielectric ceramic material is shown in Table 2. Wherein, the raw materials of the auxiliary materials are oxides.

[0046] The raw materials of main ingredients and auxiliary ingredients can be replaced by one or a combination of at least two oxides, carbonates, phosphates, sulfates, hydroxides, nitrates or organic metal salts of the constitu...

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Abstract

The invention relates to a microwave dielectric ceramic material applicable to low temperature sintering, which comprises 80-99.5% main material and 0.5-20% auxiliary material by weight, wherein the main material comprises aBaO-bTiO2-cZrO2; the mole percentages of a, b and c in the main material are as follows: a is less than or equal to 35% and greater than or equal to 5%, b is less than or equal to 95% and greater than or equal to 65%, and c is less than or equal to 15% and greater than or equal to 0%; the auxiliary material comprises one of CuO, ZnO, MnO2, Ni2O3 and TiO2 or the combination of at least two in CuO, ZnO, MnO2, Ni2O3 and TiO2. The microwave dielectric ceramic material can maintain excellent microwave dielectric properties under the condition of low temperature sintering: Er is within the range of 34-38, Qf is greater than 40,000, and tf is within the range of -5ppm / DEG C and 5ppm / DEG C, is low in cost, can be widely used in manufacture of various dielectric resonators, filters, duplexers, antennas and other microwave devices, meets the technical demands of mobile communication, satellite communication and other systems and has important industrial application value.

Description

technical field [0001] The invention relates to the technical field of functional ceramic materials, in particular to a microwave dielectric ceramic material suitable for low-temperature sintering and a preparation method thereof. Background technique [0002] The development of modern communication technology has greatly promoted the development of electronic components in the direction of miniaturization, chip and high frequency. Microwave ceramic devices are also developing in the direction of chip, miniaturization and even integration. Microwave dielectric ceramic components, represented by microwave dielectric resonators and filters, are a new type of device for both military and civilian purposes. It is developed under the impetus of space technology, rocket guidance and miniaturization of microwave systems. Typical Applications include: military and civilian space technology, radar, mobile communications, satellite communications and GPS. Generally, low and medium d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/46C04B35/622
Inventor 吉岸王晓慧金镇龙
Owner 无锡鑫圣慧龙纳米陶瓷技术有限公司
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