Accelerated Polymer to SiOC Nanocomposite Conversion by Precursor Method at Applied Electric Field
Silicon oxide carbon(SiOC)ceramic materials were prepared by flash pyrolysis of polymer precursors.The applied electric field significantly accelerated the microstructure change of SiOC.Compared with the traditional method,the precursor of SiOC was separated at a lower pyrolysis temperature,resulting in the formation of carbon and SiC phases.The sample will form more silicon carbide and more ordered carbon phase under the influence of electric field.The fundamental principle can be explained by the significant change in the phase change driving force under the combined action of electric field and joule heating.This work provides a new route for low temperature synthesis of SiOC nanocomposites.
SiOC ceramicsPrecursor methodApplied electric fieldFlash pyrolysisPhase separation
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