Characterization and Synthesis Mechanism of Magnesium Borate Whisker

摘要

Being a new whisker products with high performance to price ratio, magnesium borate whiskers with a length of 10-50 μm and a diameter of 0.5-2 μm were prepared by molten salt and characterized by XRD, FT-IR, SEM and chemical titration. The experiments show that the synthesis conditions are as follows: raw materials ratio: Mg:B:flux = 1:11.05:1-3.5(mol); reaction temperature: 800-950 °C; reaction time: 6-10 hours; flux: NaCI, KCI or NaOH. In addition, the synthesis mechanism was discussed and the "L-S" synthesis mechanism was suggested.