【作者】 黄庆； 袁颖； 陈玉如； 曲远方；

【Author】 Huang Qing;Yuan Ying;Chen Yuru;Qu Yuanfang;School of Material Science and Technology,Tianjin University;

【机构】 天津大学材料学院；

【摘要】 氧化铝瓷是一种用途很广的结构与功能陶瓷材料,但是由于韧性低,机加工困难,所以当前迫切需要发展一种高可靠高强度的连接技术。研究了采用纯锆英石与高纯氧化铝粉的混合浆料作为连接剂对99氧化铝瓷进行的无压固相连接,并初步分析了连接机理。考察了各种工艺条件(连接剂、连接温度及保温时间)对连接强度的影响。结果表明,连接温度为1550℃、保温时间为4h为最佳连接工艺条件,此时获得的最高连接强度为124.4MPa。更多还原

【Abstract】 Alumian ceramics have been widely used in structural and functional materials.However,difficulty in the fabrication process of complex-shaped and large-sized components requires techniques of joining ceramics to be developed.In this work,the mixture of zircon and fine alumina powder was used as the joining agent.The results indicated that the joint strength was largely affected by the joining conditions such as thme、 temperature and joining agent.The maximum joint strength was achieved at 1550℃ for 4h.更多还原