Pulsed thermal treatment of carbon up to 3000 °C using an atomic absorption spectrometerPutman, K. J., Sofianos, M. V., Rowles, M. R., Harris, P. J. F., Buckley, C. E., Marks, N. A. and Suarez-Martinez, I. (2018) Pulsed thermal treatment of carbon up to 3000 °C using an atomic absorption spectrometer. Carbon, 135. pp. 157-163. ISSN 0008-6223
It is advisable to refer to the publisher's version if you intend to cite from this work. See Guidance on citing. To link to this item DOI: 10.1016/j.carbon.2018.03.060 Abstract/SummaryAn 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.
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