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Research on Reactive Brazed Connections of Steel/Ceramics

Ceramics are widely used in aerospace and industrial production due to their excellent mechanical properties. However, due to the shortcomings of ceramics, such as high hardness and brittleness, it is difficult to be processed into the shapes required for engineering applications, and it needs to be connected with metals to form ceramic/metal composites with complementary properties, and the selection of suitable connection technology becomes the key to determine the strength of ceramic/metal properties. And reactive brazing in the connection of ceramics and metal showed very superior mechanical properties. The active element can effectively wet the ceramic and form a reaction layer through diffusion, which enhances the stability and connection strength of ceramic/metal joints. At the same time, the active brazing material can efficiently relieve the residual thermal stress, which plays an important role in maintaining the integrity of the joint. This paper summarizes the current research status of ceramic/metal brazed joints at home and abroad in recent years, analyzes the microscopic morphology, interfacial structure and mechanical properties of the joints, and concludes that the joints are generally composed of the structure of metal base material + reaction layer + reactive brazing material + reaction layer + ceramic base material, of which the reaction layer depends on brazing material to a large extent. Finally, the problems of metal/ceramic in the joining process are summarized.

Ceramics/Metal, Brazing, Complementary Properties

Yuqiang Liu, Yan Zhang, Jianping Zhou, Daqian Sun, Hongmei Li. (2023). Research on Reactive Brazed Connections of Steel/Ceramics. American Journal of Applied Scientific Research, 9(3), 134-137.

Copyright © 2023 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License ( which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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