C3H6C2H2混合碳源对CVI制备CC复合材料的影响的开题报告摘要：本文研究了不同混合气C3H6-C2H2的混合比对CVI制备复合材料的影响。使用电解镀铜作为基体，采用化学气相渗渗入方法制备复合材料。通过扫描电子显微镜（SEM）和X射线衍射分析（XRD）分析了材料的微观结构和晶体结构。结果表明，C3H6-C2H2混合气的混合比对复合材料的形态和微观结构有很大的影响。随着C2H2浓度的增加，基体表面生成的碳化物层变厚，碳化物晶粒尺寸变大。此外，C2H2浓度的增加还可以提高复合材料的碳含量。与单一碳源相比，混合碳源可以显著提高复合材料的旋转力矩和形变模量。因此，本研究表明，通过调节C3H6-C2H2混合气的混合比可以控制复合材料制备过程中的碳化程度和复合材料的性能。这为发展高性能碳基复合材料提供了重要的理论指导。关键词：CVI，复合材料，C3H6-C2H2混合气，碳化物，形变模量Abstract：ThisarticleinvestigatestheeffectofdifferentC3H6-C2H2gasmixingratiosonthepreparationofcompositematerialsbychemicalvaporinfiltration(CVI).Electroplatedcopperwasusedasthesubstrateandthemicrostructureandcrystalstructureofthematerialwereanalyzedbyscanningelectronmicroscopy(SEM)andX-raydiffractionanalysis(XRD).TheresultsshowthatthemixingratioofC3H6-C2H2gashasasignificanteffectonthemorphologyandmicrostructureofthecompositematerial.WithincreasingC2H2concentration,thecarbidelayeronthesurfaceofthesubstratebecomesthickerandthecarbidegrainsizebecomeslarger.Inaddition,increasingC2H2concentrationcanalsoincreasethecarboncontentofthecompositematerial.Comparedwithasinglecarbonsource,amixedcarbonsourcecansignificantlyimprovetherotationaltorqueanddeformationmodulusofthecompositematerial.Therefore,thisstudyshowsthatthecarbonizationdegreeandperformanceofcompositematerialsduringthepreparationprocesscanbecontrolledbyadjustingthemixingratioofC3H6-C2H2gas,whichprovidesimportanttheoreticalguidanceforthedevelopmentofhigh-performancecarbon-basedcompositematerials.Keywords:CVI,compositematerial,C3H6-C2H2mixedgas,carbide,deformationmodulus