学科分类
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1 个结果
  • 简介:Epoxyresin/Ni@Cnanoparticlecompositeswithalignedmicrostructurewerepreparedbyusingaprocedureofmagneticfieldassistedcuring.Theresultsshowthattheresistivityofcompositesexhibitsnegativetemperaturecoeffcient(NTC)effectaboveroomtemperature,andcanbeadjustedbyvaryingthecontentfillerandthemagnitudeofmagneticfieldapplied.Hill'squantumtunnelingmodelwasmodifiedtounderstandtheelectricalconductionmechanisminthecomposites.ItshowsthattheNTCeffectascribestothedominantthermalactivatedtunnelingtransportofelectronacrossadjacentnanoparticles,aswellasthelowthermalexpansivityofepoxyresinmatrix.

  • 标签: 纳米复合材料 环氧树脂 可调电阻 纳米镍 电阻效应 参展