Preparation method of Mn-doped Zr(Zn1/3Nb2/3)0.6Ti1.4O8 microwave dielectric ceramic

Abstract

The invention discloses a preparation method of a Mn-doped Zr(Zn1 / 3Nb2 / 3)0.6Ti1.4O8 microwave dielectric ceramic. The preparation method comprises 1, synthesizing a Zr(Zn1 / 3Nb2 / 3)0.6Ti1.4O8 base material through a solid phase method, 2, adding MnCO3 into the Zr(Zn1 / 3Nb2 / 3)0.6Ti1.4O8 base material, 3, adding the base material containing copper oxide into a polyurethane ball mill tank, carrying outball milling through a variable-frequency planetary ball mill with anhydrous ethanol as a ball milling medium and zirconium oxide as milling balls at a rotation rate of 365rpm in the time interval of30 min between the positive and negative rotation according to a ratio of the raw materials, milling balls to anhydrous ethanol of 1: 5: 1 for 5h, 4, carrying out drying and sieving, 5, carrying out granulation, 6, carrying out dry pressing molding, 7, carrying out sintering through discharging glue at 600 DEG C for 4h, carrying out heating to 1260 DEG C at a rate of 3-5 DEG C / min and keeping thetemperature in air for 6h, and 8, carrying out cooling to the room temperature. Through Mn doping modification, the sintering characteristics of the dielectric ceramic are effectively improved, the dielectric ceramic can be sintered densely in air at 1260 DEG C and good microwave dielectric properties are obtained.

Description

technical field [0001] The application relates to a Mn-doped Zr (Zn 1 / 3 Nb 2 / 3 ) 0.6 Ti 1.4 o 8 Preparation method of microwave dielectric ceramics. 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.