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Combustion Synthesis and Infrared Characterization of TiB2

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Abstract:

On the basis of magnesiothermy, with Mg powder, TiO2 powder and B2O3 powder as mixed reactants, relatively pure TiB2 powder was prepared by self-propagating high temperature synthesis (SHS) after leached in diluted hydrochloric acid with the suitable concentration. The product after leached was examined by XRD for qualitative and quantitative analysis, SEM for morphology analysis and infrared spectroscopy for transmittance analysis. It was found that diluted hydrochloric acid could decrease most of the impurities, and the proportion of TiB2 phase in the product is more than 99%, which was hexagonal shape crystal with the grain size of 200-300 nm. Compare with the infrared spectrogram of the middle infrared spectral region of the product of before and after acid pickling, it was found that the transmittance of TiB2 is extremely low in the range of 2000-4000 cm-1, which can be excellent infrared absorption material in the corresponding wave band.

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Periodical:

Key Engineering Materials (Volumes 602-603)

Pages:

142-145

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.602-603.142

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Online since:

March 2014

Authors:

Su Li, Jun Shou Li*, Fang Zhao, Ming Yuan Wang, Xiao Juan Wu

Keywords:

Combustion Synthesis, Infrared Characterization, Infrared Radiation Material, TiB2

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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