This paper concerns the influence of increasing the milling time, which is performed by a high-energetic rotary-vibratory mill and WC-Co balls, on boron carbide sintering. The commercial boron carbide powder was characterised regarding the morphological, grain size and phase composition after 0–16 h of milling. The prepared green bodies were sintered using dilatometry to determine the WC contamination impact on the onset and end process temperature. The increasing tungsten boride phase content was confirmed by XRD analysis. The content of WC contamination on the boron carbide laser sintering process was also qualitatively analysed. The obtained polycrystals were analysed in terms of phase composition, microstructure and tungsten element distribution.

本文关注增加研磨时间对碳化硼烧结的影响，该研磨时间由高能旋转振动磨和 WC-Co 球进行。商业碳化硼粉末的特征在于研磨 0-16 小时后的形态、晶粒尺寸和相组成。使用膨胀法对制备好的生坯进行烧结，以确定 WC 污染对开始和结束工艺温度的影响。通过XRD分析证实了硼化钨相含量的增加。还定性分析了碳化硼激光烧结过程中WC污染的含量。对所获得的多晶进行了相组成、微观结构和钨元素分布的分析。