釩鋯藍(lán)顏料生成機(jī)理的研究

1、西北輕工業(yè)學(xué)院碩士學(xué)位論文釩鋯藍(lán)顏料生成機(jī)理的研究姓名：高彥峰申請學(xué)位級別：碩士專業(yè)：材料學(xué)指導(dǎo)教師：羅宏杰王秀峰2001.3.1釩枯藍(lán)頤料生成機(jī)理的研究ABSTRACTFormationMechanismofVanadiumZirconBluePigmentsTheVzirconblurpigmentisoneofdopedpigmentsandtetravalencevanadiumwhichsubstitutesZr“siteor

2、Si“siteorbothoftheminthezirconlatticeisbelievedtoberesponsibleforthebluecolorofthepigment.ItisusuallypreparedbycalcinationaintimatemixtureofequimolarZrO2andSiO2withV0orNHVOandamineralizerat8001000C.Typicalmineralizersare

3、alkalimetalsaltssuchashalidesandsulfatesortheirmixtures.ItisimportantfortheformationoftheblueVzircontoheattheallcomponentstogether.Inspiteofalargeamountofresearchonthistopictheroleplayed妙mineralizersintheformationofzirco

4、nhasbeensomethingofamysteryalthoughithasconfirmedtheiradditionhasefectsonreducingtheformationtemperatureandhelpingincorporatethecolorantintothestructureofzircon.Inthisstudytheprecalcinationmethodand“MarkerTechnique“weree

5、mployedtoclari勿theefectofV20andNaFontheformationoftheblueVzircon.Themajorresultsobtainedinthisexperimentweresummarizedasfollows:(1)Vanadiumoxideobviouslyhadefectsontheformationofzirconbydecreasingitsformationtemperaturea

6、nditwasbeneficialtoproducezirconwhenitcoexistedwithzirconiaratherthanwithsilica.(2)Sodiumfluoridealsohasminorefectsonreducingtheformationtemperatureofzirconanditwasbeneficialtoproducezirconwhenitcoexistedwithsilica.There

7、sultoffurtherexperimentsconductedbyreplacementofNaFwithNa2COorNHFshowNaismajorfactorfortheformationofzirconbutnotF.(3)ThesampleZVSFZVFSandZSVFcangivebluezirconincomparisonwithSFZVandSVZF.ZirconisformedfromSFZVatmuchlower

8、temperaturesbutthecolorwasgreenishblueandthesampleSVZFgivesbrownishcoloredzirconathightemperaturesbecauseitconsistsofamixtureofgreenishzirconandalargeamountofV20(4)ItwasconfirmedthatthereactionofNaFandV20gaveameltatlower