Boron Carbide Hollow Microspheres Prepared by Polymer Derived Method

Jin Long Wang; Yan Zi Gou; Wu Rong Ren; Ke Jian; Hao Wang

doi:10.4028/www.scientific.net/KEM.726.159

Paper Titles

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 726Boron Carbide Hollow Microspheres Prepared by...

Boron Carbide Hollow Microspheres Prepared by Polymer Derived Method

Abstract:

Polycarborane, as a kind of boron carbide polymeric precursor, was synthesized by hydroboration reaction with styrene, divinylbenzene as the carbon resource and borane as the boron resource in this work. The polymer precursor which had good solubility and film-forming ability was soluble in most organic solvents. Furthermore, polycarborane was used to fabricate hollow polymer microspheres by emulsion technique. The compact boron carbide ceramic hollow microspheres were prepared by ceramization of the polymer microspheres. Ceramic microspheres with diameters ranging from 1 to 1.5 mm and shell thicknesses from 15 to 30 μm were easily prepared by changing emulsion composition and curing conditions. Micrographs of SEM showed that the hollow microspheres had smooth surface and good sphericity. These boron carbide ceramic hollow microspheres are of significant importance for application in the field of neutron moderator in nuclear reactors, power generation in deep space flight, etc.

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Periodical:

Key Engineering Materials (Volume 726)

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159-163

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.726.159

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Online since:

January 2017

Authors:

Jin Long Wang, Yan Zi Gou*, Wu Rong Ren, Ke Jian, Hao Wang

Keywords:

Boron Carbide, Ceramization, Hollow Microspheres, Precursor, Synthesis

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