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Growth and properties of Na8Ti5O14 crystals

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Abstract

Transparent single crystals of Na8Ti5O14 have successfully been grown by the pulling method from a melt of sodium and titanium oxides with the molar ratio of Na2O to TiO2 of 1 to 1.25. X-ray fluorescence and neutron activation analyses were used to determine the composition of the crystals, which corresponded to the formula Na7.95Ti5- O13.98. The crystal structure was found to be triclinic with space group of p1, by using X-ray diffraction and piezoelectric examinations. A phase transition was found to exist at 365±5° C from measurements of DTA, thermal dilatometry and dielectric properties.

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Authors and Affiliations

  1. Research Institute for Iron, Steel and Other Metals, Tohoku University, Sendai, Japan

    H. Takei

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  1. H. Takei
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Takei, H. Growth and properties of Na8Ti5O14 crystals. J Mater Sci 11, 1465–1469 (1976). https://doi.org/10.1007/BF00540879

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  • DOI: https://doi.org/10.1007/BF00540879

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