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Sonotriboluminescence in suspensions of trivalent terbium compounds

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Abstract

The luminescence of TbCl3 · 6H2O and Tb(acac)3 · H2O crystal hydrates under conditions of multibubble sonolysis (20 kHz, 25 W) of the corresponding crystal suspensions in perfluorodecalin and undecane has been observed for the first time. The luminescence spectra contain the lines of emission from Tb3+* ions. No emission lines due to molecular nitrogen have been observed in N2-saturated suspensions. Based on a comparison of the emission accompanying the sonolysis of suspensions, the photoluminescence of terbium crystals, and the tribolumninescence under usual mechanical actions, it is concluded that the nature of the observed phenomenon corresponds to sonotriboluminescence (STL), the mechanism of which is different from that of the recently discovered STL of resorcinol where N2 is predominantly excited. It is suggested that resorcinol-like organic crystals and terbium compounds belong to different types of triboluminescent materials, which are characterized by different susceptibilities to STL activation during the sonolysis of suspensions.

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Authors and Affiliations

  1. Institute of Petrochemistry and Catalysis, Russian Academy of Sciences, Ufa, 450075, Russia

    G. L. Sharipov, A. M. Abdrakhmanov & A. A. Tukhbatullin

Authors
  1. G. L. Sharipov
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  2. A. M. Abdrakhmanov
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  3. A. A. Tukhbatullin
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Correspondence to G. L. Sharipov.

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Original Russian Text © G.L. Sharipov, A.M. Abdrakhmanov, A.A. Tukhbatullin, 2009, published in Pis’ma v Zhurnal Tekhnicheskoĭ Fiziki, 2009, Vol. 35, No. 10, pp. 25–33.

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Sharipov, G.L., Abdrakhmanov, A.M. & Tukhbatullin, A.A. Sonotriboluminescence in suspensions of trivalent terbium compounds. Tech. Phys. Lett. 35, 452–455 (2009). https://doi.org/10.1134/S1063785009050204

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  • DOI: https://doi.org/10.1134/S1063785009050204

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