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首页> 外文期刊>Japanese Journal of Applied Physics. Part 1, Regular Papers, Brief Communications & Review Papers >Surface Modification of Narra Wood (Pterocarpus indicus) by Ion Shower Treatment
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Surface Modification of Narra Wood (Pterocarpus indicus) by Ion Shower Treatment

机译：离子喷淋处理对纳拉木材（Pterocarpus indicus）的表面改性

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A gas discharge ion source (GDIS) was used as test facility to produce and study the characteristics of diffused, low-energy hydrogen ion showers. Narra wood samples were then exposed to the showers to investigate topographical effects of ion irradiation. Analysis of beam constituents by mass spectroscopy shows H~+ ions to be the dominant species suggesting an essential participatory role for this particular monatomic ion in the surface modification process. Low energy irradiation (600-700eV) produced hydrophobic surfaces with scanning electron micrographs showing partial closure of surface pores. Whereas, a reversion to hydrophilicity was observed for higher energy irradiation ( > 900 eV), with surface images showing exterior degradation believed to be the etching effects of the chemically active H~+ species. The irradiated samples absorbency was quantified via the wetting model wherein the contact angle's time rate equation was numerically solved and fitted onto experimental data. The change rate proportionality constant K with value 0.0015 corresponding to 600 eV beam energy, exhibited the longest moisture absorptive inhibition time of more than 10 min. An increasing value of K indicates increased wetting behavior.
机译：气体放电离子源（GDIS）被用作测试设备，以产生和研究扩散的低能氢离子喷淋头的特性。然后将Narra木材样品暴露在淋浴下，以研究离子辐射的形貌效应。通过质谱分析束成分表明，H〜+离子是主要物质，表明该特定单原子离子在表面改性过程中起着至关重要的参与作用。低能辐照（600-700eV）产生的疏水表面具有扫描电子显微照片，表明表面孔部分封闭。然而，对于更高能量的辐射（> 900 eV），观察到亲水性的回复，表面图像显示外部降解被认为是化学活性H +物质的蚀刻作用。通过润湿模型对辐照样品的吸收能力进行定量，其中对接触角的时间速率方程进行数值求解并拟合到实验数据上。对应于600 eV束能量的0.0015的变化率比例常数K表现出最长的吸湿抑制时间超过10分钟。 K值的增加表明润湿行为的增加。

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