Synthesis of Single-Phased BaTi₂O₅ Powders by Arc-Melting

Abstract:

Arc-melting was employed to synthesize BaTi₂O₅ powders by fast melting the reagent mixture of BaCO₃ and TiO₂ with different molar ratios (0.90~1.05:2). The influence of molar ratios of BaCO₃ to TiO₂ on the phase of the powders derived from arc-melting was investigated by X-ray diffraction and Raman spectra. When the molar ratio was larger than 0.95:2, a little amount of Ba-rich compound Ba₂TiO₄ was produced besides the main phase of BaTi₂O₅. Ti-rich compound Ba₆Ti₁₇O₄₀, BaTi₂O₉ and TiO₂ began to appear at the ratios ranging from 0.90:2 to 0.95:2. Single-phased BaTi₂O₅ powders were obtained by arc-melting the reagent mixture with the molar ratio of 0.95:2.

• Periodical: Advanced Materials Research (Volume 279)
• Pages: 44-48
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.279.44
• Online since: July 2011
• Authors: Jian Peng, Chuan Bin Wang, Ling Li, Qiang Shen, Lian Meng Zhang
• Keywords: Arc-Melting, BaTi₂O₅ Powder, Molar Ratio, Single-Phased

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