Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Li series microwave dielectric ceramic material as well as preparation method and use thereof

A technology of microwave dielectric ceramics and powders, which is applied in the field of microwave dielectric ceramics, can solve the problems of high and low dielectric constant, and achieve the effects of high quality factor, low dielectric constant and loss reduction.

Inactive Publication Date: 2019-03-29
工业和信息化部电子第五研究所华东分所
View PDF3 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the Li produced by the invention 2 MgSiO 4 The dielectric constant of microwave-based dielectric ceramic materials is relatively high, ranging from 6.3 to 6.5, which needs to be further reduced

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Li series microwave dielectric ceramic material as well as preparation method and use thereof
  • Li series microwave dielectric ceramic material as well as preparation method and use thereof
  • Li series microwave dielectric ceramic material as well as preparation method and use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] The composition of the Li-based microwave dielectric ceramic material in this embodiment is shown in Table 1.

[0051] The preparation method of the Li-based microwave dielectric ceramic material of the present embodiment comprises the following steps:

[0052] 1) Carry out batching according to the material composition and proportioning of Table 1;

[0053] 2) After mixing the powder material weighed in step 1) with deionized water, perform a ball mill in a planetary ball mill, and the time of the first ball mill is 12 hours;

[0054] 3) The powder obtained in step 2) was dried and sieved, and then pre-fired at a temperature of 830° C., the heating rate was 5° C. / min, and the heat preservation was carried out for 3.5 hours;

[0055] 4) After mixing the powder obtained after pre-calcining in step 3) with deionized water, perform secondary ball milling in a planetary ball mill, and the time for the secondary ball milling is 12 hours;

[0056] 5) Add the powder obtained...

Embodiment 2

[0059] The composition of the Li-based microwave dielectric ceramic material in this embodiment is shown in Table 1.

[0060] The preparation method of the Li-based microwave dielectric ceramic material in this embodiment is the same as that in Embodiment 1.

Embodiment 3

[0062] The composition of the Li-based microwave dielectric ceramic material in this embodiment is shown in Table 1.

[0063] The preparation method of the Li-based microwave dielectric ceramic material in this embodiment is the same as that in Embodiment 1.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Radiusaaaaaaaaaa
Heightaaaaaaaaaa
Login to View More

Abstract

The invention provides a Li series microwave dielectric ceramic material as well as a preparation method and use thereof. The Li series microwave dielectric ceramic material is prepared from main materials of Li2CO3, SiO2 and MgO, and substituted material NiO. The Li series microwave dielectric ceramic material has the excellent features of low dielectric constant, high quality factor, high relative density and low densification temperature. The preparation method of the Li series microwave dielectric ceramic material improves the sintering features, the micromorphology and the electric performance of Li2MgSiO4 microwave dielectric ceramic at the low sintering temperature of 1120 to 1160 DEG C; under the condition of adding a small quantity of sintering auxiliary agents, the sintering temperature lower than 961 DEG C can be realized.

Description

technical field [0001] The invention belongs to the technical field of microwave dielectric ceramics, and relates to a Li-based microwave dielectric ceramic material and its preparation method and application, in particular to a Li-based microwave dielectric ceramic material with a low dielectric constant and its preparation method and application. In particular, it relates to a low-permittivity Li-based microwave dielectric ceramic material sintered at low temperature and its preparation method and application. Background technique [0002] The arrival of the 5G era poses a huge challenge to the research and development of microwave dielectric ceramic materials. In order to reduce signal transmission delay and transmission loss, these microwave dielectric ceramic materials need to have lower dielectric constant, higher quality factor and Close to zero resonant frequency temperature coefficient, and these parameters are extremely important in the field of wireless communicat...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C04B35/20C04B35/64
CPCC04B35/20C04B35/64C04B2235/3203C04B2235/3279C04B2235/442C04B2235/74C04B2235/77
Inventor 汪洋杨永兴楼倩杨文静
Owner 工业和信息化部电子第五研究所华东分所
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com