Show simple item record

dc.contributor.authorLu, Kathy
dc.contributor.authorErb, Donald
dc.contributor.authorLiu, Mengying
dc.date.accessioned2017-05-01T06:42:18Z
dc.date.available2017-05-01T06:42:18Z
dc.date.issued2016-01-28
dc.identifierc6tc00069j.pdf
dc.identifier.issn2050-7526
dc.identifier.urihttp://hdl.handle.net/10919/77560
dc.description.abstractSilicon oxycarbide (SiOC) is an interesting polymer-derived system that can be tailored to embody many different properties such as lightweight, electrochemical activity, and high temperature stability. One intriguing property that has not been fully explored is the electrical conductivity for the carbon-rich SiOC compositions. In this study, a carbon-rich SiOC system is created based on the crosslinking and pyrolysis of polyhydromethylsiloxane (PHMS) and divinylbenzene (DVB) mixed precursors. The carbon-rich nature can effectively delay SiOC phase separation and crystallization into SiO2 and SiC during pyrolysis. In an oxidizing air atmosphere, the SiOC materials are stable up to 1000 °C with <0.5 wt% weight loss. Before the onset of electrical conductivity drop at ∼400 °C, the material has electrical conductivity as high as 4.28 S cm−1. In an inert argon atmosphere, the conductivity is as high as 4.64 S cm−1. This new semi-conducting behavior with high thermal stability presents promising application potential for high temperature MEMS devices, protective coatings, and bulk semi-conducting components that must endure high temperature conditions.
dc.format.extent1829-1837
dc.format.mimetypeapplication/pdf
dc.language.isoen_US
dc.publisherRoyal Society of Chemistry
dc.relation.ispartofRoyal Society of Chemistry Gold Open Access - 2016
dc.rightsCreative Commons Attribution-NonCommercial 3.0 Unporteden
dc.rights.urihttp://creativecommons.org/licenses/by-nc/3.0/en
dc.titleThermal stability and electrical conductivity of carbon-enriched silicon oxycarbide
dc.typeArticle - Refereed
dc.rights.holderLu, Kathyen
dc.rights.holderErb, Donalden
dc.rights.holderLiu, Mengyingen
dc.contributor.departmentMaterials Science and Engineering (MSE)en_US
dc.title.serialJournal of Materials Chemistry C
dc.identifier.doihttps://doi.org/10.1039/c6tc00069j
dc.identifier.volume4
dc.identifier.issue9
dc.type.dcmitypeText
dc.identifier.eissn2050-7534


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record

Creative Commons Attribution-NonCommercial 3.0 Unported
License: Creative Commons Attribution-NonCommercial 3.0 Unported