碳化還原法制備納米碳化鉻粉末

1、2010屆畢業(yè)畢業(yè)生畢業(yè)論畢業(yè)論文題目:碳化還原法制備納米碳化鉻粉末碳化還原法制備納米碳化鉻粉末院系名稱：院系名稱：材料科學(xué)與工程材料科學(xué)與工程專業(yè)班級：專業(yè)班級：材料材料F0605學(xué)生姓名：學(xué)生姓名：學(xué)號：號：指導(dǎo)教師：指導(dǎo)教師：教師職稱：教師職稱：2Title：PreparationofnanocarbonreductionchromiumcarbidepowderAbstractTransitionmetalcarbideshas

2、ahighmeltingpointhardnesshightemperaturestrengththesematerialsalsoshowgoodelectricalconductivitythermalconductivity.Theexcellentperfmancetoensurethattheirmetallurgyelectronicscatalystshightemperaturecoatingmaterialssucha

3、sextensiveuseofNowthevariouschromiumcarbidepowdersynthesismethodshavebeenstudiedincludingdirectelementreactionmechanicalalloyingtemperatureprogrammedreactioncarbonationgasreductionlaw.Howeverthesemethodsinindustrialappli

4、cationshasbeenlimitedmainlyduetoreunionawidesizedistributionlowyieldcomplicatedexpensivemonitingcosts.InthisstudysubjectsusingnanocarbonblacknanochromiumoxideasrawmaterialsmanufacturenanocarbonchromiumreductionmethodAtdi

5、fferentCcontent(26%28%)differentsinteringtemperature(900℃1000℃1100℃)differentholdingtime(30min60min90min)ofthemanufacturingnanochromiumcarbidewithmetallographicmicroscopyXRDinfraredspectraldetectionofresultantnature.Thee

6、xperimentshowsthefollowingconclusions:theCcontentwas28%sinteringtemperatureis1100℃holdingtimewas90mintheresultantfreeofotherimpurityphasevariouspropertiesofchromiumcarbidenanothemostclosetoideal.Keywds：Chromiumcarbidecar