Effect of doped Lu2O3 on the microstructures and properties of tungsten alloy prepared by spark plasma sintering
Effect of doped Lu2O3 on the microstructures and properties of tungsten alloy prepared by spark plasma sintering
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DOI：
10.1016/j.jnucmat.2014.09.068
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发表时间：
2015
影响因子：
3.1
通讯作者：
Jun Zhang;L. Luo;Xiaoyong Zhu;Hongyingnan Chen;Junling Chen;Xiang Zan;Jigui Cheng;Yucheng Wu
中科院分区：
文献类型：
--
作者：
Jun Zhang;L. Luo;Xiaoyong Zhu;Hongyingnan Chen;Junling Chen;Xiang Zan;Jigui Cheng;Yucheng Wu
纯钨和W-3重量%采用放电等离子体烧结技术，在1600 °C烧结3 min，制备了球磨4 h的Lu 2 O3样品。这些样品的特征在于通过X射线衍射，场发射扫描电子显微镜，透射电子显微镜，和能量色散谱，维氏显微硬度，和热导率分析。结果表明，掺杂的Lu 2 O3颗粒对W-3 wt.%陶瓷的致密化和强化有影响Lu 2 O3复合材料与纯钨的比较。纯钨的相对密度和显微硬度分别为93.49%和446.4Hv，Lu_2O_3样品分别为96.21%和551.7Hv。
Pure tungsten and W–3 wt.% Lu2O3samples were fabricated by spark plasma sintering at 1600 °C for 3 min from 4 h ball–milled powders. These samples were characterized by X-ray diffraction, field-emission scanning electron microscopy, transmission electron microscopy, and energy-dispersive spectroscopy, Vickers microhardness, and thermal conductivity analyses. Results revealed that doped Lu2O3particles influenced the densifying and strengthening of W–3 wt.% Lu2O3composite compared with pure tungsten. The relative density and microhardness of pure tungsten were 93.49% and 446.4 Hv, and those for W–3 wt.% Lu2O3samples were 96.21% and 551.7 Hv, respectively.