Method for finely synthesizing ilmenite structure ZnTiO3 nanometer powder by using water-soluble sol-gel process

Abstract

The invention belongs to the technical field of electronic ceramic preparation and application, and particularly relates to a method for finely synthesizing ZnO-TiO2 system microwave dielectric ceramic nanometer powder by using a sol-gel method. The technical scheme comprises adopting a water-soluble sol-gel method to finely synthesize ZnO-TiO2 system microwave dielectric ceramic nanometer precursor powder, and specifically comprises: 1) preparing a citric acid aqueous solution of Zn ions; 2) preparing a citric acid aqueous solution of Ti ions; and 3) synthesizing a ZnTiO3 microwave dielectric ceramic nanometer precursor. According to the present invention, the low price oxide and the inorganic nitrate are adopted as the raw materials, use of the expensive metal alkoxide is avoided, and the synthesized powder has significant advantages of low synthesis temperature, uniform ceramic particles, good ceramic particle dispersity, pure phase, easy performing of fine doping modification of various elements, nano-scale powder (particle size of about 30 nm), high specific surface energy, high activity and the like. In addition, the method has the following characteristics that: the subsequent low temperature sintering can be achieved, and the LTCC application requirements can be 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 this invention is to overcome the shortcomings of traditional solid-phase synthesis difficulties based on the application requirements of LTCC (Low Temperature Co-fired Ceramic) low temperature co-fired ceramic technology in the future; A method for finely synthesizing ilmenite structure ZnTiO3 dielectric ceramic nano-precursor powder by sol-gel method, using sol-gel method to finely synthesize ilmenite structure ZnTiO3 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

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