ZnO_B2O3对R2O-RO-B2O3-Al2O3-SiO2系统低温分相釉乳浊效果的影响

第48卷第1期人工晶体学报Vol.48No.l2019年1月_________________________JOURNALOFSYNTHETICCRYSTALS_______________________January,2019Z11O/B2O3R2O-RO-B2O3O3-Si〇2系统低温分相釉乳浊效果的影响苗立锋，包镇红，吴道福，江伟辉(景德镇陶瓷大学国家日用及建筑陶瓷工程技术研究中心，景德镇333001)333001)摘要:以K20-Ca0-Al203-Si02系统为基础，通过添加氧化锌和硼酸钙，制备出了1120T：烧成的高白度无锆低硼低温分相乳浊釉，并借助TEM、XRD、FTIR和白度仪等测试手段研究了Zn0/B203对乳浊釉分相结构和白度的影响，探讨了其乳浊机理。结果表明：随着211〇/82〇3的增大，釉面白度呈先增后降趋势，当211〇/82〇3为4.04时达最大值为80.5%。随着Zn0/B203的增大，分相粒子尺寸逐渐减小，数量逐渐增多。Zn0/B203过高，分相粒子尺寸太小，远小于可见光波长，不利于乳浊度的提高。关键词:分相;低温;乳浊釉中图分类号:TQ174文献标识码:A文章编号:1000-985X(2019)01-0090-05EffectofZn0/B203RatioonOpacifyingEffectofLowTemperatureSinteringR20-R0-B203-Al203-Si02SystemPhaseSeparationOpaqueGlazeMIAOLi-feng，BAOZhen-hong，WUDao-fu，JIANGWei-hui(NationalEngineeringResearchCenterforDomesticandBuildingCeramics,JingdezhenCeramicInstitute,Jingdezhen333001,China)(NationalEngineeringResearchCenterforDomesticandBuildingCeramics,JingdezhenCeramicInstitute,Jingdezhen333001,China)Abstract：BasedontheK20-Ca0-Al203-Si02system,thehighwhitenesszirconium-freeandlowB203BasedontheK20-Ca0-Al203-Si02system,thehighwhitenesszirconium-freeandlowB203contentphaseseparationopaqueglazessinteredat1120Tlwerepreparedbyaddingzincoxideandcontentphaseseparationopaqueglazessinteredat1120Tlwerepreparedbyaddingzincoxideandcalciumborate.TheeffectofZn0/B203ratioonthephaseseparationstructureandwhitenessofopaquecalciumborate.TheeffectofZn0/B203ratioonthephaseseparationstructureandwhitenessofopaqueglazewerestudiedbyTEM,XRD,FTIRandwhitenessmeter,andtheopacifyingmechanismwasglazewerestudiedbyTEM,XRD,FTIRandwhitenessmeter,andtheopacifyingmechanismwasdiscussed.TheresultsshowthatwiththeincreaseofZn0/B203ratio,thewhitenessofglazeincreasesatdiscussed.TheresultsshowthatwiththeincreaseofZn0/B203ratio,thewhitenessofglazeincreasesatfirstandthendecreases.WhenZn0/B203ratiois4.04,themaximumwhitenessof80.5%isachieved.firstandthendecreases.WhenZn0/B203ratiois4.04,themaximumwhitenessof80.5%isachieved.WiththeincreaseofZn0/B203ratio,thesizeofphaseseparationparticlesgraduallydecreas