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3 results on '"Jia, Shenli"'

1. Analysis of the Carbon Nano-Structures Formation in Liquid Arcing

Author

Xing Jian, Jia Shenli, Shi Zongqian, and Xing Gang

Subjects
Electric arc, Transmission electron microscopy, Chemistry, Chemical physics, Direct current, Nano, Analytical chemistry, chemistry.chemical_element, Plasma, Liquid nitrogen, Condensed Matter Physics, High-resolution transmission electron microscopy, Carbon
Abstract

Graphite electrodes were used for the direct current (DC) arc discharge in water. And high-resolution transmission electron microscopy (HRTEM) was used to investigate the products. Based on the experimental phenomena and nano-structure products, arc plasma characteristics in water were analyzed theoretically. Two growth regions and relevant growth modes were proposed to interpret the formation mechanisms of nano-structures by arc discharge in water. Furthermore, liquid nitrogen and cross magnetic field was applied to change the arcing state respectively, and new carbon nano-structures were obtained. Their formation mechanisms were also analyzed correspondingly.

Published
2007

2. Influence of transverse magnetic field on the formation of carbon nano-materials by arc discharge in liquid

Author

Xing, Gang, Jia, Shenli, and Shi, Zongqian

Subjects
*CARBON, *MAGNETIC fields, *LIQUID nitrogen, *DIRECT currents, *GRAPHITE, *ELECTRODES, *COBALT
Abstract

Abstract: To change the structures and yields of carbon nano-products, transverse magnetic field (TMF) was introduced to arc discharge in liquid (de-ionized water, liquid nitrogen). Direct current was used to sustain the arc discharge between two graphite electrodes and cobalt powder was filled in drilled anodes as catalyst sometimes. Scanning electron microscopy and high-resolution transmission electron microscopy were used to investigate the nano-products. Some novel carbon nano-structures were obtained with the effect of TMF. For arc discharge in water, curled multi-walled carbon nanotubes and nano-structures with few layers were found in cathode depositions and floating products, respectively. For arc discharge in liquid nitrogen, twists of single-walled carbon nanotubes appeared in cathode depositions and the yields of spherical nano-particles in floating products increased. [Copyright &y& Elsevier]

Published
2007
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3. Two-Dimensional Modeling of the Capillary Plasma With the Kinetic Ablation Model.

Author

Li, Rui, Li, Xingwen, Jia, Shenli, Su, Guolei, and Murphy, Anthony B.

Subjects
MATHEMATICAL models, PLASMA dynamics, ABLATION (Aerothermodynamics), MAGNETOHYDRODYNAMICS, COMPUTER simulation, INFORMATION modeling, GLOW discharges
Abstract

A steady 2-D magnetohydrodynamic model of a capillary discharge is presented. Special attention is paid to the ablation/deposition process at the capillary wall, and the results show distinct 2-D features. [ABSTRACT FROM AUTHOR]

Published
2011
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