Effect of physical disturbance on the structure of needle coke

doi:10.1088/1674-1056/19/10/108101

Abstract Through different preparation technology, this paper reports that the needle coke is prepared with coal-tar pitch under the effect of magnetic field and ultrasonic cavitation. It studies the effect of physical disturbance on the structure of needle coke. The structure of needle coke is characterized by scanning electron microscope and x-ray diffractometer, and the influence mechanism is analysed. Results showed that the structure and property of needle coke could be effectively improved by magnetic field and ultrasonic cavitations, such as degree of order, degree of graphitization and crystallization. Comparatively speaking, the effect of magnetic field was greater. The graphitization degree of needle coke prepared under the effect of magnetic field is up to 45.35%.

Keywords: needle coke magnetic field ultrasonic ordering structure

Received: 15 January 2010
Revised: 06 April 2010
Accepted manuscript online:

PACS:	43.35.Ei	(Acoustic cavitation in liquids)
	64.70.D-	(Solid-liquid transitions)
	81.20.-n	(Methods of materials synthesis and materials processing)
	89.30.Aa

Fund: Project supported by the National Natural Science Foundation of China (Grant No. 20843002) and the Scientific and Technological Foundation of Shanxi Province of China (Grant No. 20080321065).

Cite this article:

Zhao Shi-Gui(赵世贵), Wang Bao-Cheng(王保成), and Sun Quan(孙权) Effect of physical disturbance on the structure of needle coke 2010 Chin. Phys. B 19 108101

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