Synthesis and anisotropic properties of alumina-SILICA (cas 10279-57-9) aerogels constructed by SILICA (cas 10279-57-9) sols infiltrated into unidirectional frozen alumina templates
-
Add time:08/04/2019 Source:sciencedirect.com
Alumina-SILICA (cas 10279-57-9) aerogels (ASAs) were firstly prepared by using alumina aerogels as template via ice-template method and then silica sols infiltrated via vacuum impregnation. Fourier transform infrared (FT-IR) spectra, X-ray diffraction (XRD) and scanning electron microscopy (SEM) were used to investigate the microstructures characteristics and phase composites. Compared with the alumina templates (ATs), ASAs presented the porous characteristic of nano-level aerogels. The infiltrated silica can retard phase transformation of alumina. The anisotropic mechanical and thermal conduction properties of ATs in parallel and perpendicular to ice-crystal growth directions were demonstrated, which was related to the anisotropic porous structures of ATs due to the difference of main and secondary skeleton structures forming in unidirectional freeze. After infiltrated silica sols, the mechanical property was increased but the thermal conductivity was decreased. The anisotropic characteristics of ASAs still were maintained. Using ice template as a support, shape-stabilized aerogel composites can be constructed.
We also recommend Trading Suppliers and Manufacturers of SILICA (cas 10279-57-9). Pls Click Website Link as below: cas 10279-57-9 suppliers
Prev:Colloidal stability of SILICA (cas 10279-57-9) and graphite in aqueous suspensions
Next:Effect of NaCl on the fabrication of the EGYPTIAN BLUE (cas 10279-60-4) pigment) - 【Back】【Close 】【Print】【Add to favorite 】
- Related Information
- Colloidal stability of SILICA (cas 10279-57-9) and graphite in aqueous suspensions08/03/2019
- A straightforward procedure for the synthesis of [email protected] core-shell nanoparticles08/02/2019
- Sintered SILICA (cas 10279-57-9) bodies with persistent luminescence08/01/2019
- Polysilsesquioxane-based SILICA (cas 10279-57-9) aerogel monoliths with embedded CNTs07/31/2019
- Removal of arsenic and SILICA (cas 10279-57-9) from geothermal fluid by electrocoagulation07/30/2019
- Growing invisible SILICA (cas 10279-57-9) nanowires on fused SILICA (cas 10279-57-9) plates provides highly transparent and superwetting substrates07/29/2019
- Dependence of mesoporous SILICA (cas 10279-57-9) properties on its template07/28/2019
- Fume SILICA (cas 10279-57-9) improves the insulating and mechanical performance of SILICA (cas 10279-57-9) aerogel/glass fiber composite07/27/2019
- [email protected] catalyst: Porosity of SILICA (cas 10279-57-9) shells switches catalytic reactions07/26/2019
-
Health and Chemical more >
-
Related Products