Detonation Synthesis of TiO₂/Na₂Ti₆O₁₃ Powders

Abstract:

An easy and fast vacuum detonation method was designed to prepare TiO₂/Na₂Ti₆O₁₃ powders. The mixed explosives, prepared by usage of Ti-Na-contained precursor, ammonium nitrate, hexogen and a certain mass of polystyrene foam ball (EPS) in beaker, were detonated in a vacuum detonation reactor to synthesize powders. The prepared light-grey powders were characterized by powder X-ray diffractometer and transmission electron microscopy to ascertain the phase composition and morphology. It was found that the powders were consisted of TiO₂ and Na₂Ti₆O₁₃, and the TiO₂ almost was rutile phase. The intensity of Na₂Ti₆O₁₃ peak was enlarged with increase of EPS mass. The TiO₂/Na₂Ti₆O₁₃ particles were irregular sphere or long rhombus, and some particles were 10 nm. In general, the dispersity of the powers was decreased with the mass of EPS increasing.

• Periodical: Materials Science Forum (Volume 910)
• Pages: 31-34
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.910.31
• Online since: January 2018
• Authors: Tie Jun Zhao, Honghao Yan*, Xiao Jie Li, Yang Wang
• Keywords: Detonation Method, Na₂Ti₆O₁₃, TiO₂, Vacuum

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