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用于空间试验的金属物质气化方法

郑延帅 邱扬 薛昆 许正文 赵海生 谢守志

郑延帅, 邱扬, 薛昆, 许正文, 赵海生, 谢守志. 用于空间试验的金属物质气化方法[J]. 空间科学学报, 2022, 42(3): 448-454. doi: 10.11728/cjss2022.03.210601027
引用本文: 郑延帅, 邱扬, 薛昆, 许正文, 赵海生, 谢守志. 用于空间试验的金属物质气化方法[J]. 空间科学学报, 2022, 42(3): 448-454. doi: 10.11728/cjss2022.03.210601027
ZHENG Yanshuai, QIU Yang, XUE Kun, XU Zhengwen, ZHAO Haisheng, XIE Shouzhi. Study on Gasification Method of Metal Materials for Space Experiment (in Chinese). Chinese Journal of Space Science, 2022, 42(3): 448-454. DOI: 10.11728/cjss2022.03.210601027
Citation: ZHENG Yanshuai, QIU Yang, XUE Kun, XU Zhengwen, ZHAO Haisheng, XIE Shouzhi. Study on Gasification Method of Metal Materials for Space Experiment (in Chinese). Chinese Journal of Space Science, 2022, 42(3): 448-454. DOI: 10.11728/cjss2022.03.210601027

用于空间试验的金属物质气化方法

doi: 10.11728/cjss2022.03.210601027
基金项目: 国家自然科学基金项目(61871352),重点实验室稳定支持项目(JCKY2020210C614240305)和泰山学者工程项目(ts20190968)共同资助
详细信息
    作者简介:

    郑延帅:E-mail:yszheng1990@163.com

  • 中图分类号: P354

Study on Gasification Method of Metal Materials for Space Experiment

  • 摘要: 通过向电离层空间释放金属物质,形成高密度的等离子体云团,实现对电磁波反射与散射的方法,对于改善通信效果具有重要作用,是当前应急通信研究热点之一。根据气态形式释放金属才能充分与电离层相互作用生成电子密度增强区的原理,针对以往采用碱金属和碱土金属作为释放物,产生电子密度增强的机制主要是光致电离所带来的不足(白天效果明显,夜间效果较差),选用镧系金属作为新的释放物,并以镧系金属钐为例,建立了钛硼与钛碳两种自蔓延燃烧合成反应加热气化金属钐的理论模型。通过理论计算,确定了两种自蔓延合成反应体系加热气化金属钐的净放热量以及加热气化金属钐的最大效率。针对理论研究结果,对两种反应体系加热气化金属钐的方案开展试验研究,验证了理论分析的正确性,摆脱了电子密度增强主要依赖光致电离的缺点,提供了一种全天候释放电子密度的方法。

     

  • 图  1  钛碳和钛硼反应加热气化金属钐理论计算流程

    Figure  1.  Theoretical calculation flow chart of Ti-C and Ti-B reaction vaporization samarium

    图  2  试验用混合好的粉末(a)及压坯(b)

    Figure  2.  Mixed powder (a) and green compact (b) for experiment

    图  3  钛碳(a)与钛硼(b)气化金属钐的效率统计

    Figure  3.  Efficiency statistics of Ti-C (a) and Ti-B (b) gasification Sm

    表  1  相关金属及化合物的各热物性参数

    Table  1.   Thermal properties of related metals and compounds

    材料种类 熔化比热系数(固态)形成热$\Delta {H_{{\rm{f}}\left( {298} \right)}} / $ $({\rm{kJ}} \cdot {\rm{mol}}^{-1})$气化
    熔点/℃熔化热$\Delta H / $$({\rm{kJ}} \cdot {\rm{mol}}^{-1}) $abc沸点/℃气化热$\Delta H / $$({\rm{kJ}} \cdot {\rm{mol}}^{-1}) $
    Ti 1660 5.0 19.8 7.9 0 0 3287 112.5
    B 2180 50.2 32.10 –0.07 –96.75 0 3650 489.7
    C 3500 0.11 38.9 –1.48 0 4827 355.8
    TiC 3140 83.6 49.45 3.35 –14.96 –184.46 4820
    TiB2 2980 50.2 54.07 –0.03 –21.63 –310.8 >3500
    Sm 1072 8.63 32.15 –0.49 –1.59 0 1791 166.4
     表中金属及化合物包括钛(Ti),硼(B),碳(C),碳化钛(TiC),硼化钛(TiB2),钐(Sm)。
    下载: 导出CSV

    表  2  钛碳反应净热量计算

    Table  2.   Calculation of net heat of Ti-C reaction

    反应方程式C+Ti=TiC总计净放热/(kJ·mol–1
    mol. weight12.0147.9059.959.91–89.06
    $\Delta {H_{\left( {298} \right)} }/({\rm{kJ} } \cdot {\rm{mo} }{ {\rm{l} }^{ - 1} })$00–184.46–184.46–1.49
    焓变H2064H298 /(kJ·mol–1)95.495.4
    下载: 导出CSV

    表  3  钛硼反应净热量计算

    Table  3.   Calculation of net heat of Ti-B reaction

    反应方程式2 B+Ti=TiB2总计净放热 /(kJ·mol–1
    mol. weight2×10.847.9069.5469.54–213.8
    $\Delta {H_{\left( {298} \right)} }/({\rm{kJ} } \cdot {\rm{mo} }{ {\rm{l} }^{ - 1} })$00–310.8–310.8–3.07
    焓变H2064H298 /(kJ·mol–1)97.097.0
    下载: 导出CSV
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  • 收稿日期:  2021-06-01
  • 录用日期:  2021-08-17
  • 修回日期:  2021-08-17
  • 网络出版日期:  2022-05-25

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