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Abstract <p>Triple system BaB<sub>2</sub>O<sub>4</sub>–NaBaBO<sub>3</sub>–BaMoO<sub>4</sub> is studied to optimize the growth of barium metaborate crystals (β-BaB<sub>2</sub>O<sub>4</sub>) - promising materials for nonlinear optics in visible and ultraviolet ranges. Main attention is paid to the phase equilibria and characteristics of crystallization in this system. It is shown that the addition of barium molybdate decreases the solution-melt viscosity, increasing the crystal yield and quality. The key parameters and β-BaB<sub>2</sub>O<sub>4</sub> primary crystallization regions are determined by solid-phase synthesis, differential scanning calorimetry, and powder X-ray diffraction techniques. Experiments are performed on growing spontaneous β-BBO crystals. The results obtained demonstrate the promising application of compositions of this system as solvents for β-BBO crystal growth.</p>

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Phase Formation in the ΒaΒ2O4– NaBaBO3–BaMoO4 System

  • 期刊论文

  • 发表日期：

    2025年3月28日

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  • E. A. Simonova,
  • A. B. Kuznetsov,
  • E. V. Khan,
  • A. A. Goreyavcheva,
  • A. E. Kokh

摘要

Abstract

Triple system BaB2O4–NaBaBO3–BaMoO4 is studied to optimize the growth of barium metaborate crystals (β-BaB2O4) - promising materials for nonlinear optics in visible and ultraviolet ranges. Main attention is paid to the phase equilibria and characteristics of crystallization in this system. It is shown that the addition of barium molybdate decreases the solution-melt viscosity, increasing the crystal yield and quality. The key parameters and β-BaB2O4 primary crystallization regions are determined by solid-phase synthesis, differential scanning calorimetry, and powder X-ray diffraction techniques. Experiments are performed on growing spontaneous β-BBO crystals. The results obtained demonstrate the promising application of compositions of this system as solvents for β-BBO crystal growth.