放电等离子技术连接铬酸镧陶瓷

Joining of Lanthanum Chromate Ceramics by Spark Plasma technology

摘要:

铬酸镧陶瓷拉伸性能差,脆性高、难以变形、硬度高使得加工上存在难度,陶瓷连接技术可以实现低成本制造形状复杂的大型陶瓷构件。本文采用铬酸镧前驱体料浆作为中间层材料,利用放电等离子技术进行了铬酸镧陶瓷的连接,测定了连接件的连接强度,并借助SEM、EDS等手段分析了连接温度及保温时间对连接件强度的影响。

Abstract:

Lanthanum chromate ceramics with poor tensile properties, high brittleness, difficult deformation and high hardness is difficult to process. Large ceramic components with complex shapes can be fabricated at low cost by ceramic joining technology. In this paper, the lanthanum chromate precursor slurry was used as the interlayer material, and the lanthanum chromate ceramic was joined by spark plasma technology. And then the bonding strength of the joining was measured. The influence of joining temperature and holding time on the strength of the joint was analyzed by means of SEM, EDS and so on.