FCT Campus 2829-516 Caparica
Mon-Sat: 07:00 - 17:00

Synthesis of multicomponent advanced composite oxide nanomaterials – new approaches to old industrial methods.

I. Danilenko, O. Gorban, L. Akhkozov, T.E. Konstantinova.

https://zenodo.org/record/3693982#.XnIEgHIzbIU

ABSTRACT

A new approach to design of oxide ceramic-ceramic nanocomposites instead of industrial technical ceramics has been proposed. The use of mixing of liquid solutions of reagents instead of powders mixing allows entering in the matrix material the oxide dopants in supersaturated concentrations. The synthesized nanoparticles contain a potential for the formation of various structures. By the controlling of heating regimes during nanopowders sintering processes we can control the diffusion processes on the particles volume and boundaries. The decomposition of initial supersaturated solid solution during heat treatment (especially at fast sintering) can lead to formation of multilevel nanocomposite structure in the ceramic matrix with enhancing mechanical, electrical, optical and magnetic properties. It is established on the example of zirconia that even a slight amount of aluminum oxide, nickel oxide, zinc oxide leads to a significant change of the nanopowders and ceramics properties.

img_divider

Keywords:

Oxide nanopowders

Synthesis methods

Microwave

Diffusion

Sintering

Applications

 

Interested In This Service? Make An Appointment