Abstract

An efficient microwave supported synthesis, with a reaction time of only one and a half minute, to prepare boron-modified titania nanocrystals TiO2:(B), was developed. The nanocrystals were obtained by hydrolysis of titanium tetraisopropoxide (TTIP) together with benzyl alcohol and boric acid, and the approach did not need surfactants use and a final calcination step. The produced TiO2:(B) nanocrystals were characterized in detail by low magnification Transmission Electron Microscopy (TEM), Inductively Coupled Plasma-Atomic Emission Spectroscopy (ICP-AES), X-Ray Diffractometry (XRD), Micro Raman Spectroscopy. One of the obtained samples was then tested as additive in various amounts in a typical aluminosilicate refractory composition. The effects of these additions in bricks were evaluated, according to UNI EN 196/2005, in terms of thermo-physical and mechanical properties: diffusivity, bulk density, apparent density, open and apparent porosity and cold crushing strength. Bricks microstructure was analysed by Scanning Electron Microscopy (SEM) and energy dispersion spectroscopy (EDS). The bricks obtained with nanoadditives presented improved mechanical characteristics with respect to the typical aluminosilicates, presumably because of a better compaction during the raw materials mixing stage.

Autore Pugliese

• Ciccarella Giuseppe , Congedo Paolo Maria

Tutti gli autori

• C. Carlucci , F. Conciauro , B. F. Scremin , A. G. Antico , M. Muscogiuri , T. Sibillano , C. Giannini , E. Filippo , C. Lorusso , P. M. Congedo , G. Ciccarella

Titolo volume/Rivista

NANOMATERIALS AND NANOTECHNOLOGY

Anno di pubblicazione

2015

ISSN

1847-9804

ISBN

Non Disponibile

Numero di citazioni Wos

25

Ultimo Aggiornamento Citazioni

28/04/2018

Numero di citazioni Scopus

5

Ultimo Aggiornamento Citazioni

28/04/2018

Settori ERC

Non Disponibile

Codici ASJC

Non Disponibile