Unlock instant, AI-driven research and patent intelligence for your innovation.

A high quality factor yttrium-doped zirconia microwave dielectric ceramic material and its preparation method

A technology of yttrium doped zirconia and microwave dielectric ceramics, which is applied in the field of high quality factor yttrium oxide doped zirconia microwave dielectric ceramic materials and their preparation, can solve the problems of inability to meet the application requirements of microwave devices and the like, and achieves quality factor and dielectricity. High electrical constant, stable performance, and the effect of increasing the dielectric constant

Active Publication Date: 2021-12-07
SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing yttrium-doped zirconia ceramics at this stage generally have a dielectric constant of 18-28, but the Q×f value is only around 500GHz (@10GHz), which cannot meet the application requirements of microwave devices at all.

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
  • A high quality factor yttrium-doped zirconia microwave dielectric ceramic material and its preparation method
  • A high quality factor yttrium-doped zirconia microwave dielectric ceramic material and its preparation method
  • A high quality factor yttrium-doped zirconia microwave dielectric ceramic material and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-3

[0045] The invention provides a high-quality factor yttrium-doped zirconia microwave dielectric ceramic material and a preparation method thereof. The chemical composition of the material is ZrO 2 -x mol%Y 2 o 3 -y wt%Al 2 o 3 -z wt% SiO 2 , where x is the molar ratio, 1.5≤x≤2, y and z are mass percentages, 0.04≤y≤0.06, 0.001≤z≤0.002. The raw material is selected from 3mol% yttrium doped zirconia nano powder (20-80nm), zirconia nano powder (20-40nm), alumina powder and silicon dioxide powder (20-80nm). Table 1 shows the mass percentage of each raw material in the total amount of raw materials in the examples. The raw materials were weighed and mixed by ball milling at a speed of 270-360 rpm.

[0046] Specifically described method comprises the following steps:

[0047] (1) Ingredients: According to the general chemical formula ZrO 2 -x mol%Y 2 o 3 -y wt%Al 2 o 3 -z wt% SiO 2 , the raw material is selected from 3mol% yttrium-doped zirconia nano-powder, zirconia nano...

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
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention relates to a high quality factor yttrium-doped zirconia microwave dielectric ceramic material and a preparation method thereof. The yttrium-doped zirconia microwave dielectric ceramic material has a tetragonal phase structure and the chemical composition is ZrO 2 -x mol%Y 2 o 3 ‑y wt%Al 2 o 3 ‑z wt%SiO 2 , 1.5≤x≤2.0, 0.04≤y≤0.06, 0.001≤z≤0.002; where x mol% is Y 2 o 3 The molar content of y wt% is Al 2 o 3 The mass percentage content, z wt% is SiO 2 mass percent content.

Description

technical field [0001] The invention relates to a high-quality factor yttria-doped zirconia microwave dielectric ceramic material and a preparation method thereof, belonging to the field of electronic component materials. Background technique [0002] Microwave dielectric ceramic materials with a dielectric constant of about 30 can adapt to the development of L, S, C-band and even X-band communication technologies, and can meet the requirements of small size and light weight, integration and high reliability, and low cost. It is an important application Valuable electronic ceramic materials. At the same time, microwave dielectric ceramic materials must also have a high quality factor, because microwave devices made of high-quality factor ceramics not only have lower loss, but also facilitate accurate frequency selection of the device [1] . Therefore, microwave dielectric ceramic materials with a dielectric constant of about 30 and a high quality factor in the microwave fre...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/48C04B35/622
CPCC04B35/48C04B35/622C04B2235/3217C04B2235/3225C04B2235/3418C04B2235/5454C04B2235/76
Inventor 陈鹤拓毛小建章健王士维
Owner SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI