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首页> 外文会议>Materials in space environment >HYPERTHERMAL ATOMIC OXYGEN INTERACTION WITH HIGHLY ORIENTED PYROLYTIC GRAPHITE STUDIED BY SCANNING TUNNELING MICROSCOPY
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HYPERTHERMAL ATOMIC OXYGEN INTERACTION WITH HIGHLY ORIENTED PYROLYTIC GRAPHITE STUDIED BY SCANNING TUNNELING MICROSCOPY

机译：扫描隧道显微镜研究与高定向热解石墨的高温热氧相互作用

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摘要

Atomic oxygen reaction with highly oriented pyrolytic graphite has been investigated using the laser breakdown type fast atomic oxygen beam facility. The graphite surface exposed to atomic oxygen was examined with scanning tunneling microscopy and Auger electron spectroscopy. The scanning tunneling microscopic images of the graphite surfaces after atomic oxygen exposure showed small protrusions, and Auger spectra of the surfaces indicated the presence of a few percent of oxygen content. The density of protrusions became higher with increasing atomic oxygen fluence. These results indicated that the hyperthermal atomic oxygen reacts randomly on the graphite surface even at room temperature. The reaction scheme is different from that of molecular oxygen with graphite at higher temperatures.
机译：已经使用激光击穿型快速原子氧束设备研究了与高度取向的热解石墨的原子氧反应。用扫描隧道显微镜和俄歇电子能谱检查暴露于原子氧的石墨表面。原子氧暴露后，石墨表面的扫描隧道显微图像显示出小的突起，并且表面的俄歇光谱表明存在百分之几的氧含量。随着原子氧通量的增加，突起的密度变得更高。这些结果表明，即使在室温下，高温原子氧在石墨表面上也随机地反应。该反应方案不同于在较高温度下分子氧与石墨的反应方案。

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  • 来源
    《Materials in space environment》|1997年|211-216|共6页
  • 会议地点 Toulouse(FR)
  • 作者

    Hiroshi Kinoshita; Junichi Ikeda; Masahito Tagawa; Masataka Umeno; Nobuo Ohmae;

  • 作者单位

    Department of Material Life Science, Graduate School of Engineering, Osaka University 2-1 Yamada-oka, Suita, Osaka 565, Japan;

    Department of Material Life Science, Graduate School of Engineering, Osaka University 2-1 Yamada-oka, Suita, Osaka 565, Japan;

    Department of Material Life Science, Graduate School of Engineering, Osaka University 2-1 Yamada-oka, Suita, Osaka 565, Japan;

    Department of Material Life Science, Graduate School of Engineering, Osaka University 2-1 Yamada-oka, Suita, Osaka 565, Japan;

    Department of Material Life Science, Graduate School of Engineering, Osaka University 2-1 Yamada-oka, Suita, Osaka 565, Japan;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 航空用材料;地面设备、试验场、发射场、航天基地;
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