Properties of Aluminosilicate Refractories with Synthesized Boron-Modified TiO2 Nanocrystals

Nanomaterials and Nanotechnology

Teresa Sibillano¹  Barbara Federica Scremin¹  Claudia Carlucci¹  Cinzia Giannini¹  Francesca Conciauro¹  Antonio Graziano Antico¹  Emanuela Filippo¹  Marco Muscogiuri¹  Paolo Maria Congedo¹  Caterina Lorusso¹  Giuseppe Ciccarella¹ 

关键词: TiO2;    Anatase;    Boron;    Aluminosilicate;    Nanocrystals;    Refractories;   

DOI  :  10.5772/60204

来源: InTech

【 摘 要 】

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), and a Micro Raman Spectroscopy. One of the obtained samples was then tested as an 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 w...

【 授权许可】

Unknown