高致密ZrB2-ZrC复合材料的高压制备及热烧蚀性能

杨境 赵昊 丁战辉 陈可夫 徐保银 李苗 杜晓波 李永峰 姚斌

杨境, 赵昊, 丁战辉, 陈可夫, 徐保银, 李苗, 杜晓波, 李永峰, 姚斌. 高致密ZrB2-ZrC复合材料的高压制备及热烧蚀性能[J]. 高压物理学报, 2022, 36(4): 043101. doi: 10.11858/gywlxb.20220587
引用本文: 杨境, 赵昊, 丁战辉, 陈可夫, 徐保银, 李苗, 杜晓波, 李永峰, 姚斌. 高致密ZrB2-ZrC复合材料的高压制备及热烧蚀性能[J]. 高压物理学报, 2022, 36(4): 043101. doi: 10.11858/gywlxb.20220587
YANG Jing, ZHAO Hao, DING Zhanhui, CHEN Kefu, XU Baoyin, LI Miao, DU Xiaobo, LI Yongfeng, YAO Bin. High Pressure Preparation and Characterization of High Density ZrB2-ZrC Ultra-High Temperature Ceramic[J]. Chinese Journal of High Pressure Physics, 2022, 36(4): 043101. doi: 10.11858/gywlxb.20220587
Citation: YANG Jing, ZHAO Hao, DING Zhanhui, CHEN Kefu, XU Baoyin, LI Miao, DU Xiaobo, LI Yongfeng, YAO Bin. High Pressure Preparation and Characterization of High Density ZrB2-ZrC Ultra-High Temperature Ceramic[J]. Chinese Journal of High Pressure Physics, 2022, 36(4): 043101. doi: 10.11858/gywlxb.20220587

高致密ZrB2-ZrC复合材料的高压制备及热烧蚀性能

doi: 10.11858/gywlxb.20220587
基金项目: 国家自然科学基金(11074093);中南大学轻质高强结构材料重点实验室基金(6142912200201)
详细信息
    作者简介:

    杨 境(1995-),女,硕士研究生,主要从事超高温陶瓷材料研究. E-mail:2815148154@qq.com

    通讯作者:

    丁战辉(1972-),男,博士,教授,主要从事高压材料物理研究. E-mail:dingzh@jlu.edu.cn

  • 中图分类号: O521.2

High Pressure Preparation and Characterization of High Density ZrB2-ZrC Ultra-High Temperature Ceramic

  • 摘要: 超高温陶瓷具有高熔点、高热导率、抗氧化烧蚀等优异性能,是可重复使用的高超声速飞行器防热部件的重要候选材料之一。利用高压技术制备出了高致密超高温陶瓷ZrB2-ZrC复合材料。通过调控合成条件和原料配比,研究了合成压力和烧结助剂ZrC对复合材料抗热烧蚀性能的影响规律。结果表明:在压力3.2 GPa、温度950 ℃的条件下制备出的ZrB2-ZrC复合材料的致密度达到95%以上,该复合材料在1600 ℃烧蚀下的最优质量烧蚀率为17 μg/s,在2000 ℃下的最优质量烧蚀率为30 μg/s;在合成压力为2.9 GPa、温度为950 ℃的条件下,改变烧结助剂ZrC的含量可以影响复合材料的热烧蚀性能。其中,当ZrB2与ZrC的摩尔比为8∶1时,制备的ZrB2-ZrC复合材料经1600 ℃烧蚀后的质量烧蚀率达到最低值(35 μg/s)。

     

  • 图  不同压力下制备的ZrB2-ZrC复合材料样品的XRD谱

    Figure  1.  XRD patterns of the ZrB2-ZrC composites synthesized under different high pressures

    图  不同压力下制备的ZrB2-ZrC复合材料样品表面的SEM图像

    Figure  2.  SEM images of the ZrB2-ZrC composites synthesized under different high pressures

    图  温度950℃、不同压力下合成的ZrB2-ZrC复合材料经1600 ℃烧蚀后样品的XRD谱

    Figure  3.  XRD patterns of ZrB2-ZrC composite samples synthesized under different pressures at 950 ℃ after ablation at 1600 ℃

    图  在2.6 GPa、950 ℃制备的ZrB2-ZrC复合材料经1600 ℃烧蚀后样品表面的SEM图像

    Figure  4.  SEM image of ZrB2-ZrC composite synthesized at 2.6 GPa and 950 ℃ after ablation at 1600 ℃

    图  在3.2 GPa、950 ℃条件下制备的ZrB2-ZrC复合材料的原位高温XRD谱

    Figure  5.  In-situ high temperature XRD patterns of ZrB2-ZrC composite fabricated at 3.2 GPa and 950 °C

    图  采用不同摩尔比的ZrB2和ZrC通过高压合成的复合材料样品的XRD谱

    Figure  6.  XRD patterns of composite samples synthesized with different molar ratios of ZrB2 and ZrC

    图  ZrB2-ZrC复合材料样品的TG-DTA曲线

    Figure  7.  TG-DTA curves of ZrB2-ZrC composites

    图  1600 ℃烧蚀后ZrB2-ZrC复合材料样品截面的SEM图像

    Figure  8.  Cross-sectional SEM images of ZrB2-ZrC composites after ablation at 1600 ℃

    图  ZrB2-ZrC复合材料样品($n_{{\rm{ZrB}}_2} $nZrC=8∶1)经1600 ℃烧蚀后的截面EDS图像

    Figure  9.  EDS images of the cross-sectional sample of ZrB2-ZrC composite ($n_{{\rm{ZrB}}_2} $nZrC=8∶1) after ablation at 1600 ℃

    表  1  不同压力下合成的ZrB2-ZrC复合材料样品经1600和2000 °C烧蚀后的烧蚀率

    Table  1.   Ablation rate of the ZrB2-ZrC composites synthesized at different pressures after ablations at 1600 and 2000 °C

    Synthesis conditionAblation at 1600 ℃ Ablation at 2000 ℃
    Rm/(μg·s−1)Rl/(μm·s−1)Rm/(μg·s−1)Rl/(μm·s−1)
    2.6 GPa, 950 ℃670.17 2304.16
    2.9 GPa, 950 ℃550.152604.60
    3.2 GPa, 950 ℃170.16 306.00
    下载: 导出CSV

    表  2  高压制备的ZrB2-ZrC复合材料样品的致密度及其在1600 °C的烧蚀率

    Table  2.   Density and ablation rate at 1600 °C of ZrB2-ZrC composites prepared at high pressure

    $n{_{{\rm{ZrB}}_2}} $∶nZrCDensity/%Rm/(μg·s−1)Rl/(μm·s−1)
    2∶195.4550.15
    4∶193.8430.19
    8∶195.4350.19
    16∶195.5780.20
    下载: 导出CSV
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出版历程
  • 收稿日期:  2022-05-18
  • 修回日期:  2022-06-06
  • 网络出版日期:  2022-07-16
  • 刊出日期:  2022-07-28

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