Abstract An atomic absorption spectrometer unit fitted with a graphite furnace module is used to perform high temperature treatment on three carbonized polymers: polyvinyl chloride (PVC), polyvinylidene chloride (PVDC) and polyacrylonitrile (PAN). Using short pulses up to 45 s, we heat small samples to a maximum of 3000 °C. High-resolution transmission electron microscopy and X-ray diffractometry are used to track the growth of crystallites in the materials as a function of the heating temperature. We observe the well-known behaviour of large crystalline graphite growth in PVC-derived samples and the formation of curved graphitic layers in PVDC- and PAN-derived samples. This graphite furnace atomic absorption spectrometer approach is an attractive alternative to conventional laboratory-scale graphite furnaces in research of high temperature treatment of carbon and other refractory materials.

中文翻译：

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使用原子吸收光谱仪对碳进行高达 3000 °C 的脉冲热处理

摘要 使用配备石墨炉模块的原子吸收光谱仪对聚氯乙烯（PVC）、聚偏二氯乙烯（PVDC）和聚丙烯腈（PAN）三种碳化聚合物进行高温处理。使用长达 45 秒的短脉冲，我们将小样品加热至最高 3000 °C。高分辨率透射电子显微镜和 X 射线衍射用于跟踪材料中微晶的生长与加热温度的关系。我们观察到 PVC 衍生样品中大结晶石墨生长的众所周知的行为以及 PVDC 和 PAN 衍生样品中弯曲石墨层的形成。