VISUALISATION OF METALS IN PINE TREATED WITH PRESERVATIVE CONTAINING COPPER AND IRON NANOPARTICLES
VISUALISATION OF METALS IN PINE TREATED WITH PRESERVATIVE CONTAINING COPPER AND IRON NANOPARTICLES
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DOI：
10.1163/22941932-90000193
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发表时间：
2008-01-01
期刊：
影响因子：
1.9
通讯作者：
Evans, P. D.
中科院分区：
文献类型：
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作者：
Matsunaga, H.;Kiguchi, M.;Evans, P. D.
在这项研究中，我们比较了常规和场发射扫描电子显微镜（FESEM）和X射线能量色散分析（EDX）的能力，以可视化和映射南方松（松属）中的无机纳米和微粒。用微粉化碳酸铜和氧化铁的水分散体处理。传统的SEM-EDX能够检测到的木材微观结构，含有较高浓度的铜和铁的区域，但EDX图受漂移和标本遭受光束损伤。FESEM电子束在低加速电压下的高亮度降低了电子束损伤，并有助于绘制铜和铁颗粒的分布。通过使用漂移校正软件和绘制低能X射线图，进一步提高了EDX图的清晰度。FESEM-EDX能够分辨单个铜和铁微粒。我们得出结论，FESEM-EDX显示出作为解决和映射木材中无机金属颗粒分布的一种手段的前景，并且随着对用无机纳米和微米颗粒处理木材的兴趣的增长，这可能会导致该技术的更多使用。
In this Study we compared the ability of conventional and field-emission scanning-electron-microscopy (FESEM) and energy-dispersive analysis of X-rays (EDX) to visualise and map inorganic nano and microparticles in Southern pine (Pinus sp.) treated With an aqueous dispersion Of micronised copper-carbonate and iron oxide. Conventional SEM-EDX was able to detect areas of the wood microstructure that Contained higher concentrations of copper and iron, but EDX maps were affected by drift and specimens suffered beam damage. The high brightness of the FESEM's electron beam at low accelerating voltages reduced beam damage and helped when mapping the distribution of copper and iron particles. The clarity of EDX maps Was further improved by using drift-correction software and by mapping low energy X-rays. FESEM-EDX was able to resolve individual copper and iron microparticles. We conclude that FESEM-EDX shows promise as a means of resolving and mapping the distribution of inorganic metal particles in wood and that this may lead to greater use of the technology as interest in the treatment Of wood with inorganic nano and microparticles grows.