Abstract
About this talk
In this invited lecture, enhanced physical properties of hybrids composed of γ-Al2O3 nanorods and reduced graphite oxide (rGO) platelets will be discussed which are prepared after calcination and hot-press processing. The hybrid processed at various calcination time shows an enhanced electrical conductivity, simultaneously with enhanced higher mechanical tensile strength and higher thermal conductivity, compared to the bare Al2O3. The dielectric constant of the hybrid is found much higher than that of the bare Al2O3. It is found that the oxygen-containing groups on graphene oxide benefit to the adsorption of aluminum Isopropoxide, leading to the uniform dispersion of rGO with Al2O3 which is hydrolyzed from aluminum Isopropoxide in solvothermal reactions. XRD characterizations show that the increase in calcination temperature and further hot-press processing at 900°C leads to the enhanced crystallinity of γ-Al2O3 nanorods in the hybrid, resulting in enhanced physical properties of the hybrids which are beneficial for applied applications.
Audience Takeaway Notes:
- Audience may learn about hot pressing and their impact on physical properties of hybrids.
- This research proves beneficial to material scientists to expand their research or teaching.
- New applications of graphene based hybrids may be developed in industry.
Speaker
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