Method for finely synthesizing ilmenite-structured ZnTiO3 nano powder by using water-soluble sol-gel process

Abstract

The invention belongs to the technical field of electronic ceramic preparation and application, and in particular relates to a method for finely synthesizing ilmenite-structured ZnTiO3 series microwave dielectric ceramic nano powder by using a water-soluble sol-gel process. The method comprises the following steps: 1) preparing a citric acid solution of Zn ions; 2) preparing a citric acid solution of Ti; 3) synthesizing a ZnTiO3 microwave dielectric ceramic nano precursor. As oxides and inorganic nitrate which are low in price are taken as raw materials, and expensive alkoxides are not used, the synthesized powder has the remarkable advantages that the synthesis temperature is low, the ceramic particles are uniform, good dispersity is achieved, the phase is pure, various elements can be finely doped and modified, the prepared powder has the nano particle size (about 30nm), is high in specific surface property and is relatively high in activity, later low-temperature sintering can be achieved, and LTCC application requirements can be possibly met.

Description

technical field [0001] The invention belongs to the technical field of preparation and application of electronic ceramics, in particular to a method of finely synthesizing ZnTiO with an ilmenite structure using a wet chemical process. 3 Dielectric ceramic nano precursor powder method. Background technique [0002] LTCC low-temperature co-fired ceramic technology is a new material technology developed by Hughes Corporation in 1982. It uses thick film materials, and according to the pre-designed structure, electrode materials, substrates, electronic devices, etc. are fired at one time. High-integration, high-performance circuit packaging technology, its main application areas are: high-frequency wireless communication (such as mobile phones, global satellite positioning systems and Bluetooth technology, etc.), aerospace industry and military fields (such as communication satellites, detection and tracking radar systems, etc.), micro-electromechanical systems and sensing techn...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is based on the application requirements of LTCC (Low Temperature Co-fired Ceramic) low temperature co-fired ceramic technology in the future, to overcome the shortcomings of traditional solid-phase synthesis difficulties; to provide a finely synthesized ilmenite structure ZnTiO by sol-gel method 3 Dielectric ceramic nano-precursor powder method, using sol-gel method to finely synthesize ilmenite structure ZnTiO 3 Ceramic powder has significant advantages such as low synthesis temperature, uniform ceramic particles (about 30nm), good dispersion, pure phase, nano-particle size and high specific surface energy, showing high activity, etc., and can achieve subsequent low temperature Sintering, which is expected to provide new candidate materials for meeting the needs of LTCC applications

Images