-99-第46卷第1期非金属矿Vol.46No.12023年1月Non-MetallicMinesJanuary,2023锂渣基发泡陶瓷的制备及其性能研究熊惠明1鲜雯1邓威1孙娜1王维清1,2*孙晋睿1刘才鹏1李椹1罗立涛1(1西南科技大学环境与资源学院，四川绵阳621010；2固体废物处理与资源化教育部重点实验室，四川绵阳621010)摘要以锂渣为主要原料，钠长石为助熔剂，辅以高岭土为黏结剂，外掺碳化硅为造孔剂，通过高温发泡法制备发泡陶瓷材料。采用X射线衍射(XRD)、X射线荧光(XRF)、热重-差热分析(TG-DSC)和性能测试，研究了烧成温度和原料配比对发泡陶瓷性能的影响，并对制品的表观形貌、物相组成和高温热效应进行了分析。结果表明，原料配比为40%锂渣、10%高岭土、50%钠长石，在1260℃下制得的发泡陶瓷综合性能最优，孔隙率为79.1%，体积密度为435kg/m3，抗压强度为3.18MPa，吸水率为2.2%。高温下熔体黏度增加及气体产生量增加，使气泡受到较大的表面张力而难以长大，这对材料的膨胀程度和强度有重要影响。关键词锂渣；钠长石；高岭土；发泡陶瓷中图分类号：TQ174.6；X75文献标志码：A文章编号：1000-8098(2023)01-0099-05PreparationofLithiumSlagBasedFoamedCeramicsandHighTemperaturePhaseTransformationXiongHuiming1XianWen1DengWei1SunNa1WangWeiqing1,2*SunJinrui1LiuCaipeng1LiShen1LuoLitao1(1SchoolofEnvironmentandResources,SouthwestUniversityofScienceandTechnology,Mianyang,Sichuan621010;2KeyLaboratoryofSolidWasteTreatmentandRecycling,MinistryofEducation,Mianyang,Sichuan621010)AbstractThefoamedceramicmaterialswerepreparedbyusinglithiumslagasthemainrawmaterial,albiteasflux,kaolinasthebondingma-terial,andsiliconcarbideastheblowingagent.TheeffectsofsinteringtemperatureandrawmaterialratioonthepropertiesoffoamedceramicswerecomprehensivelyinvestigatedbyX-raydiffraction(XRD),X-rayfluorescence(XRF),thermogravimetry-differentialscanningcalorimetryanalysis(TG-DSC)andpropertiesexperiments,andtheapparentmorphology,phasecompositionandhightemperaturethermaleffectsofthefoamedceram-icwereanalyzed.Theresultsshowedthatfoamedceramicspreparedwith40%lithiumslag,10%kaolinand50%albiteatsinteringtemperatureof1260℃hadthebestcomprehensiveperformance.Theporosity,volumedensity,compressivestrengthandthewaterabsorptionwe...
