Abstract
This paper reports the investigation of morphological, textural and structural changes for furan resin-derived glass-like carbons, and the formation of spherical graphite in the carbon by hot isotropic pressing (HIP) at a temperature 2500 °C and under pressure 200 MPa even though the changed area took place at interior parts. We characterized the changed area by using Raman spectroscopy and XRD. It was found that the interior changes into graphite after HIP. From the scanning electron microscopy (SEM) images the interior part consisted of spheres, whose dimensions were about 20–150 μm. This graphitization is far from the previously reported ones on hard carbons even though the changed area was limited to interior.
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