简介:Inthispaper,zirconiaisusedastopmoldmaterialforTiinvestmentcasting.Topmoldsamplesaremadebypropermoldbuildingtechnology.Theeffectofdifferentsinteringtemperatureonchemicalcomposition,microstructureandresidualbendingstrengthofthetopmoldsampleisstudied.Thevolumeandhomogeneityoftheairholesinthetopmoldaredeterminedbysinteringtemperature,andfinallydeterminedtheresidualbendingstrengthofthemoldsamplewasdetermined.