BaTi4O9/BaZn2Ti4O11 multiphase microwave dielectric ceramic and preparation method thereof

Abstract

This application discloses a BaTi4O9 / BaZn2Ti4O11 composite microwave dielectric ceramic and its preparation method. In the BaTi4O9 / BaZn2Ti4O11 composite microwave dielectric ceramic, the mass proportion of BaTi4O9 is 88-95%, and the balance is BaZn2Ti4O11, BaTi4O9 / BaZn2Ti4O11 composite phase Microwave dielectric ceramics are synthesized at one time by solid phase method. The ceramic material system of the present invention is simple, the raw material price is simple, and can be applied in the whole microwave frequency band, and the obtained ceramic powder particles are packed more compactly, have fewer pores, and are more evenly distributed. The invention is synthesized by a solid-phase method. Compared with the traditional process, the process has the advantages of good repeatability, low equipment requirements, low cost and convenient industrialized large-scale production.

Description

technical field [0001] This application relates to a BaTi 4 o 9 / BaZn 2 Ti 4 o 11 Composite microwave dielectric ceramic and its preparation method. Background technique [0002] Microwave dielectric ceramics is a new trend in international research on dielectric materials in recent years, which is mainly to meet the development needs of microwave mobile communications. In the late 20th century, the combination of information processing technology and electronic information digitization technology pushed the communication system to an unprecedented new peak. The ultimate goal of communication is to achieve full-time information transmission and exchange, so that the high mobility of communication machines has become an inevitable trend of development. At present, mobile communication has been promoted to the whole people, in order to expand the capacity, it is necessary to increase the carrier frequency. For this reason, the development of a series of electronic mater...

AI Technical Summary

Problems solved by technology

[0004] Due to the relatively large mass and volume of existing microwave dielectric resonators, the development of microwave integrated circuits is greatly limited.

The existing microwave dielectric ceramic materials cannot meet the requirements of device miniaturization because of their high dielectric constant and low quality factor Q value.