-17-第45卷第6期非金属矿Vol.45No.62022年11月Non-MetallicMinesNovember,2022高密度重晶石防辐射陶瓷板的制备及研究杜鑫盛定红董丽敏李小军谢承卫∗(贵州大学化学与化工学院,贵州贵阳550025)摘要利用贵州省天柱县重晶石为主要原料,以一定量的硅酸钠、氧化铝、氧化锌、磷酸二氢铝等为烧结助剂,在一定条件下冷压成型,再进行高温烧结,制备新型高密度防辐射重晶石陶瓷板材。结果表明,在压力为25MPa冷压成型,烧结温度1000℃,保温时间2h,退火到常温,得到的重晶石陶瓷板材表面光滑平整,重晶石颗粒和烧结助剂在高温下烧结形成高密度结构,板材的表观密度为1470kg/m3,抗压强度可达到41.5MPa,符合GB/T30018-2013《烧结装饰板》要求。新型重晶石陶瓷板材的X射线防护衰减性能测定结果表明,厚度为10mm板材的铅当量值为0.96mmPb,具有良好的抗辐射性能。关键词重晶石;烧结助剂;高温烧结;陶瓷板材;抗辐射性中图分类号:TU596;TQ174.76文献标志码:A文章编号:1000-8098(2022)06-0017-05PreparationandPropertiesofBariteRadiation-ProofCeramicPlateDuXinShengDinghongDongLiminLiXiaojunXieChengwei*(CollegeofChemistryandChemicalEngineering,GuizhouUniversity,Guiyang,Guizhou550025)AbstractUsingbaritefromTianzhuCounty,GuizhouProvinceasthemainrawmaterial,acertainamountofsodiumsilicate,alumina,zincox-ideandaluminumdihydrogenphosphateassinteringaids,anewtypeofhigh-densityradiation-proofbariteceramicplatewaspreparedbycoldpress-ingandmoldingundercertainconditions,followedbyhigh-temperaturesintering.Itisshownthatthesurfaceoftheobtainedbariteceramicplatesissmoothandflat,andthebariteparticlesandsinteringaidsaresinteredathightemperaturetoformahigh-densitystructurewithanapparentdensityof1470kg/m3andcompressivestrengthof41.5MPa,inaccordancewithGB/T30018-2013"sintereddecorativeplates".TheX-rayprotectionattenuationperformanceofthenewbariteceramicsheetwasmeasured,andtheleadequivalentvalueofthesheetwiththicknessof10mmwas0.96mmPb,whichshowedgoodradiationresistance.Keywordsbarite;sinteringassistant;high-temperaturesintering;ceramicplate;radiationresistance随着核能和核技术在医学、军事、电子、通信等领域的稳步发展,核辐射带来的安全问题不容忽视,各种防辐射材料的...