Influences of Alkaline-earth Metal Oxides on the Properties of Vitrified Bond

摘要：

　　Alkaline-earth metal oxides (MgO,CaO,SrO and BaO) were introduced to Na2O-B2O3-Al2O3-SiO2 vitrified bond,and their effects on the properties of the vitrified bond were investigated through the measurements of refractoriness,fluidity and bending strength.The results showed the refractoriness of the vitrified bond was reduced and the fluidity of the bond increased with the addition of alkaline earth metal oxides in the order of CaO>SrO>BaO>MgO.When 2-10wt% MgO,CaO and BaO was added into the bond respectively,the vitrified bond was relatively dense due to high viscosity,and the strength was all improved to some extent.However,when more than 4wt% SrO was added,the strength decreased sharply because of the deterioration of microstructure.It was concluded that the bending strength of the bond was affected by alkaline-earth metal oxides in the order of CaO>MgO>BaO>SrO.

关键词： Alkaline-earth metal oxides Vitrified bond Properties

作者: P.F.Wang Z.H.Li Y.M.Zhu

作者单位: Key Laboratory of Advanced Ceramics and Machining Technology,Ministry of Education,School of Material Science and Engineering,Tianjin University,TianJin 300072,P.R.China

会议类型: 国际会议

会议名称: The Fifth China International Conference on High-Performance Ceramics (第五届先进陶瓷国际研讨会(CICC-5))

会议地点: 长沙

会议语种:英文

页码: 1405-1407

在线出版日期: 2007-05-10（万方平台首次上网日期，不代表论文的发表时间）