ABSTRACT Nano-sized ZrB2 powders were synthesised using the high energy ball milling with ZrO2 and B2O3 as raw materials and Mg as the reducing agent. The resulting powders were characterised by X-ray diffraction, scanning electron microscopy, laser particle size analysis, transmission electron microscopy, energy dispersive spectrometry, and X-ray photoelectron spectroscopy. The influence of the synthesis parameters, including the ratios of ZrO2 to B2O3, milling medium, and reaction time, on the synthetic course of the ZrB2 nanopowders were studied systematically. The mechanisms by which these parameters influence the synthetic course of and the resulting product quality are determined. Ultimately, the diameter of the resulting particles is about 200–400 nm, which are an agglomeration composed of many individual small particles with an average diameter of ∼50 nm. In addition, the oxidation of ZrB2 powders has also been studied.

中文翻译：

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工艺参数对高能球磨制备纳米ZrB2粉体过程的影响

【摘要】：以ZrO2和B2O3为原料,Mg为还原剂,采用高能球磨法合成了纳米ZrB2粉体。所得粉末通过 X 射线衍射、扫描电子显微镜、激光粒度分析、透射电子显微镜、能量色散光谱和 X 射线光电子能谱进行表征。系统研究了ZrO2与B2O3的比例、研磨介质和反应时间等合成参数对ZrB2纳米粉体合成过程的影响。确定了这些参数影响合成过程和最终产品质量的机制。最终，所得颗粒的直径约为 200-400 nm，它们是由许多平均直径约为 50 nm 的单个小颗粒组成的团聚体。此外，还研究了 ZrB2 粉末的氧化。