Structure and non-linear optical properties of BaO–TiO2–SiO2 glass containing Ba2TiSi2O8 crystal

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Published
2007-07
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  • https://www.elsevier.com/tdm/userlicense/1.0/
  • https://www.elsevier.com/legal/tdmrep-license
DOI
  • 10.1016/j.jnoncrysol.2007.03.005
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Elsevier BV

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Abstract The BaO–TiO 2 –SiO 2 crystallized glass containing Ba 2 TiSi 2 O 8 crystal phase was examined using X-ray diffraction (XRD) measurement and Maker fringe technique. It has been found that the crystallized glasses with a composition of close to the stoichiometric Ba 2 TiSi 2 O 8 showed bulk crystallization, whereas other crystallized glasses with non-stoichiometric composition of Ba 2 TiSi 2 O 8 showed surface crystallization. The parameter Δ T , the difference in temperature between the crystallization onset and the glass transition temperature, strongly affects the crystallization behaviors of the present BTS glasses. The 30BaO–20TiO 2 –50SiO 2 transparent surface crystallized glass with strong c -oriented Ba 2 TiSi 2 O 8 phase showed its second-order non-linear optical constant, d 33  = 6.1 pm/V.

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