Effect of growth time on the morphologies of vapour grown carbon fibres and a suggested mechanism of growth

• Autorzy: Zhang H. , Shi J. , Song Y. , Zhao J. , Wang K. , Guo Q. , Zhai G. , Liu L.
• Języki publikacji: EN

Abstrakty

EN

The microstructure of vapour grown carbon fibres is two-double layered. This paper addresses the question of morphology transformation of vapour grown carbon fibres. Special attention is given to developing understanding of the growth mechanism of the outer layer of the fibres. The influence of growth time on the morphologies of as-prepared carbon fibres was investigated using scanning electron microscopy. Results showed that with the prolongation of reaction time, their morphology changed from linear fibres to carbon micro-bead chains and then again to thicker linear fibres, which led to the increase of the carbon fibres diameters from 200 nm to several micrometers. Furthermore, several kinds of carbon fibres with special morphology such as carbon micro-beads, chains, etc., could be obtained by adjusting the growth time. A growth mechanism, henceforth referred to as fibre-bead-thicker fibre, for the outer layer of vapour grown carbon fibres is proposed.

Słowa kluczowe

EN

vapour grown carbon fibres; vapour deposition; electron microscopy; microstructure

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2009
• Tom: Vol. 27, No. 3
• Strony: 885--890
• Opis fizyczny: Bibliogr. 15 poz.

Twórcy

autor

Zhang H.

autor

Shi J.

autor

Song Y.

autor

Zhao J.

autor

Wang K.

autor

Guo Q.

autor

Zhai G.

autor

Liu L.

• Key Laboratory of Carbon Materials, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, Shanxi, 030001, PR China

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