Phase pure ZrB₂ powder was synthesized via a novel green silicothermic reduction method using ZrO₂, Na₂B₄O₇ and Si as raw materials. By introducing sodium oxysalt as source of Na₂O into the reactant mixture, the original water-insoluble byproduct SiO₂, which was difficultly eliminated from resultant product in the conventional silicothermic reduction process, was transformed into water soluble Na₂Si₂O₅, making it much easy to remove from the reacted mass via simple hot water washing. The introduction of Na₂O into the system enabled a lower reduction reaction temperature at 1000 ​°C, which reducing about 200 ​°C than that of the initial reaction system. Furthermore, the above method could improve the crystal growth of submicron ZrB₂ with a regular hexagonal sheet.

以ZrO ₂，Na ₂ B ₄ O ₇和Si为原料，通过新型绿色硅热还原法合成了相纯ZrB ₂粉末。通过将氧化钠钠作为Na ₂ O的来源引入反应混合物中，原来的水不溶性副产物SiO ₂在常规的硅热还原工艺中很难从生成的产物中消除，转化为水溶性Na ₂ Si ₂ O ₅，通过简单的热水洗涤，很容易从反应物料中除去。Na ₂的引入将O引入系统可以降低1000°C的还原反应温度，这比初始反应系统的还原温度低约200°C。此外，上述方法可以改善具有规则六边形片的亚微米ZrB ₂的晶体生长。