ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
A refined coal tar pitch with softening point of 33oC was obtained by a mixed solvent extractionmethod. The pitch was carbonized at 500oC to get micrometer carbon material with needlelikestructure. The carbonized produce was further calcined at 1500oC for 30h. The resultant product wascharacterized by SEM, OM, EDS and XRD. Experimental results indicated that a mixed solvent extractionmethod could effectively get rid of primary quinoline insoluble (QI). SEM and OM examinationsshowed that there were more than 70% fibrous structures and a small amount mosaic structures. The sizeof the fibrous structure was greater than 150μm in length and less than 30μm in width. The result of EDSexhibited that the material mainly consisted of carbon. XRD analysis revealed that there was a sharpdiffraction peaks at 26.5oC, which was corresponded to the (002) plane of graphite structure
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/56/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.368-372.282.pdf
