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InfluenceofHeatTreatmentonPropertiesofSilicaAerogels ReinforcedbyCeramicFibers
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    Abstract:

    SiO2aerogelsreinforcedbyceramicfiberswerepreparedbysol-gelmethod.BoththeSiO2aerogelsandthecompositeweretreatedunderdifferenttemperatures.SEM,N2adsorption-desorptionandthermalconductivitydevicewereadoptedtocharacterizethestructureandthermalconductivitypropertiesofthe preparedmaterials.Theresultsshowthatthemicrostructurechangeslittleafterheatingunder700℃andthe heatinsulationpropertiesmaintainsalmostunchanged.However,afterheattreatmentat1000℃,theheatinsulationpropertiesdecreased,nano-microstructuressinteredandtheamountofporesreduced.

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  • Online: November 28,2016
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