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

Zr-Ti-based microwave dielectric ceramic material and preparation method thereof

A technology of microwave dielectric ceramics, zr-ti, applied in the direction of ceramics, inorganic insulators, etc., to achieve the effect of large promotion of practical value and simple sintering conditions

Inactive Publication Date: 2013-09-25
UNIV OF ELECTRONICS SCI & TECH OF CHINA
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the existing technical difficulties in the preparation of Zr-Ti-based microwave dielectric ceramics, and provide a high-quality factor, low-frequency temperature coefficient for wireless communication technology that is constantly developing towards high frequency, and can be used in air less than 1300 ° C. A new Zr-Ti-based microwave dielectric ceramic material sintered in medium, and the preparation process of this microwave dielectric ceramic is a common production process in the factory, which is convenient for mass production and application promotion

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
  • Zr-Ti-based microwave dielectric ceramic material and preparation method thereof
  • Zr-Ti-based microwave dielectric ceramic material and preparation method thereof
  • Zr-Ti-based microwave dielectric ceramic material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1~9

[0024] The concrete implementation steps that make these embodiment microwave dielectric ceramics are as follows:

[0025] (1) Select ZrO with purity ≥99% 2 , ZnO, Nb 2 o 5 and TiO 2 As a raw material, according to the composition formula (1-x) ZrTi 2 o 6 -xZnNb 2 o 6 (0.20≤x≤0.40) molar ratio for batching, the specific formula is shown in Table 1;

[0026] (2) Put the above-mentioned prepared materials into the nylon ball mill tank, use zirconium balls as the balls and deionized water as the ball milling medium, and conduct a ball mill for 10-20 hours; Dry and pass through a 60-mesh sieve;

[0027] (3) Pre-calcining the above-mentioned primary ball mill material passed through a 60-mesh sieve at a temperature of 1000°C to 1150°C for 2 to 5 hours to obtain a pre-fired material;

[0028] (4) Add additives to the calcined material, that is, CuO equivalent to y wt% of the mass of the base material after calcining and MnO of z wt%, wherein 0.50≤y≤2.50, 0.12≤z≤0.90, the sp...

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
frequency temperature coefficientaaaaaaaaaa
sintering temperatureaaaaaaaaaa
frequency temperature coefficientaaaaaaaaaa
Login to View More

Abstract

The invention discloses a Zr-Ti-based microwave dielectric ceramic material and a preparation method of the Zr-Ti-based microwave dielectric ceramic material, and belongs to the field of information functional materials and devices. The microwave dielectric ceramic material comprises a base material and an additive; the base material is represented by (1-x)ZrTi2O6-xZnNb2O6, wherein x is more than or equal to 0.20 and is less than or equal to 0.40; the additive comprises CuO equaling to 0.50-2.50% of the weight of the base material and MnO equaling to 0.12-0.90% of the weight of the base material; the crystalline phase of the Zr-Ti-based microwave dielectric ceramic material comprises ZrTi2O6 phase and TiO2 phase; the dielectric constant epsilon r of the microwave dielectric ceramic material is between 41 and 53; the (Q*f) value of the microwave dielectric ceramic material is between 35,000GHz and 49,000GHz; and the frequency-temperature coefficient tau f of the microwave dielectric ceramic material is adjustable on the both sides of zero. The Zr-Ti-based microwave dielectric ceramic material is prepared by a normal process, is sintering in air, and has great popularization value and practical value. The Zr-Ti-based microwave dielectric ceramic material is suitable for production of microwave communication components, such as dielectric resonators, dielectric filters, dielectric substrates, dielectric antennae and the like, in the modern communication technology.

Description

technical field [0001] The invention belongs to the technical field of electronic information functional materials and devices, and relates to Zr-Ti-based microwave dielectric ceramics, especially novel microwave dielectric ceramics with high quality factor and low frequency temperature coefficient. It can be used to make microwave communication components such as dielectric resonators, dielectric filters, dielectric substrates and dielectric antennas in modern communication technology. Background technique [0002] Microwave dielectric ceramics are ceramics that are used as dielectric materials in microwave frequency bands (mainly UHF, SHF frequency bands, 300MHz to 300GHz) circuits and perform one or more functions. It is a hot spot in the field of microwave dielectric material research at home and abroad in recent years. direction. Resonators, filters, oscillators, attenuators, dielectric antennas, microwave integrated circuit substrates and other components made of micr...

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): H01B3/12C04B35/49C04B35/622
Inventor 唐斌余盛全钟朝位周晓华张树人
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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