Home > Press > Iranian Scientists Use Nanotechnology to Produce Dielectric Microwave Ceramics
Abstract:
Iranian researchers from Tarbiat Modarres University produced dielectric microwave ceramics with perfect dielectric properties through a simple and cheap method, which can be used in environment with variable temperature.
Iranian Scientists Use Nanotechnology to Produce Dielectric Microwave Ceramics
Tehran, Iran | Posted on October 14th, 2014 The ceramics have been produced at laboratorial scale by using cheap and available raw materials, and they have applications in communications and telecommunications industries.
Dielectric microwave ceramics play key role in wireless communications. These ceramics have application in energy storing pieces, oscillators and filters for data transfer through microwaves in communication systems, intelligent transportation system and satellite communication.
In this study, Li2ZnTi3O8 ceramic was produced by using titanium dioxide particles additive in two size ranges of nano and micron to investigate the effects of particle size and composition of titanium dioxide as the additive on density, microstructure and dielectric properties of the ceramic.
It was turned out in the research that nanoparticle additives improve significantly the density, and they create a dense and homogenous microstructure. In other words, the use of titanium dioxide nanoparticles decreases porosity and it increases the raw density. The increase in density augments dielectric coefficient and quality factor and creates thermal stable ceramic with resonance temperature factor of nearly zero.
The researchers synthesized dielectric microwave ceramics with 4 weight percent of titanium dioxide powder through the common solid state reaction to study the subject.
Results of the research have been published in Journal of the American Ceramic Society, vol. 96, issue 12, 2014, pp. 3737-3741.
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