納米Y2O3、CeO2、Si3N4粉體對耐堿腐蝕陶瓷涂層組織和性能的影響.pdf

1、（類別：全日制碩士研究生題別：全日制碩士研究生題目：納米目：納米Y2O3、CeO2、Si3N4粉體對耐堿腐蝕陶瓷涂層組織和性能的影響粉體對耐堿腐蝕陶瓷涂層組織和性能的影響英文題目：英文題目：InfluenceofNanoY2O3、CeO2、Si3N4ontheStructurePropertiesofCrosionresistanceCeramicCoating研究生：曹研究生：曹慧學(xué)科名稱：材料加工工程學(xué)科名稱：材料加工工程指導(dǎo)教師：

2、李建國指導(dǎo)教師：李建國教授教授二○一○年六月二○一○年六月碩士學(xué)位論文碩士學(xué)位論文分類號:學(xué)校代碼:10128分類號:學(xué)校代碼:10128UDC:學(xué)號:20071247學(xué)號:20071247AbstractWiththerapiddevelopmentofmodernindustrialtechnologyeveryindustrialsectespeciallymetallurgychemicalindustryglassenergy

3、industryfacesincreasinglyharshcrosionenvironment.Undercertainparticularconditionscommonmetallicmaterialsevenespecialalloymaterialcannotsatisfythecausticityrequirementwhichleadstoseriouseconomicloss.Sohowtomanufactureexce

4、llentsprayingmaterialstoprolongthelifespanofthesparepartsreducetheeconomiclosseswillbeaveryimptantresearchissue.Intheprocessofproducingthesprayingmaterialthewkpiecebarelygetsdistted.Itisalsoeasytooperatehighinproductivit

5、y.Asaresultthesparepartscanresistcrosionabrasionheat.Thesequalitiescanreducethewearingdownoftheequipmentprolongthelifespanofthepipelineincreasetheprofit.Atpresentthenationaleconomythenationaldefenseconstructionhavegivenr

6、isetoseriousenvironmentalproblems.UnderthisbackgroundthenanorareearthoxidesuchasCeO2Y2O3nanoSi3N4ZrO2powerwasaddedtotheY2O3ZrO2sprayinginthispaper.themixtureratioofthenanopowdernanophasematerialsinthecoatingwasoptimizedw

7、iththethogonalexperimentaldesign.ThefoundationallayermaterialsmadeofNiCrpowderSubsonicSpeedFlameSprayingwereusedtomanufacturethecrosionresistantceramiccoatwhosebasematerialwasQ235steel.Thecoatstructurewasanalyzedwiththel

8、ightmicroscopethescanningelectronmicroscopeenergyspectrumanalysisXRDthewearresistanceadhesionstrengthcrosionresistanceoftheceramiccoatingshavebeentestedthemechanismofactionofthenanorareearthoxidesnanopowderinthespraypowd

9、erstheinfluenceofthenewphaseonthecrosivepropertyofthealkalineresistantliquidinthecoatinghavebeenstudied.Theresultsshowthat:addingtherightamountofnanorareearthoxideCeO2Y2O3nanoSi3N4ZrO2canimprovethedistributionstructureco

10、mpactnesswearresistanceadhesionstrengthalkalicrosionresistanceofthecoatstructure.Aftertestingthewearresistanceadhesionstrengthalkalicrosionresistancemicrostructureofthecoatconsideringitsperfmancecostwegotthebestmixturera