黒鉛材料としてみたキッシュグラファイトのキャラクタリゼーション

概要

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X-ray diffraction profiles of crude and refined kish graphite have been measured in order to evaluate the crystalline size. The X-ray diffraction data showed that crystalline size of kish graphite is as large as that of flake type natural graphite and much larger than artificial graphite used for industrial graphite materials. This mentions that kish graphite is applicable to high performance use such as high temperature solid lubricant. Size and component of impurity particles in the kish graphite have also been analyzed by using scanning electron microscope (SEM) and energy dispersion X-ray spectroscopy (EDX). The size of most impurities was found smaller than that of kish graphite. The results of EDX analysis for the impurities have revealed that origins of impurities were ironmaking slag, pig iron, crusher materials and residues of afid rinse.
2003-02-28