Joining material for joining silicon carbide ceramics and method for joining silicon carbide ceramics

Abstract

The present invention provides a connection material for connecting silicon carbide ceramics. The connection material has a left-right stacked structure, and comprises at least two titanium layers, wherein a carbon layer is arranged between the adjacent titanium layers. According to the present invention, the connection material is sandwiched between silicon carbide ceramic materials to be connected, and the nanometer titanium layer and the nanometer carbon layer are subjected to an exothermic reaction when the SiC materials to be connected are integrally connected by heating the connection interface through an external heat source, such that the middle connection layer can release the partial heat so as to reduce the energy supply of the external heat source, easily save the cost, and reduce the industrial production difficulty.

Description

technical field

[0001] The invention relates to the technical field of silicon carbide ceramic materials, in particular to a connection material for connecting silicon carbide ceramics, a preparation method thereof, and a method for connecting silicon carbide ceramics using the connection material Background technique

[0002] Silicon carbide ceramics (SiC) have a series of advantages such as low neutron activity, strong resistance to neutron radiation, low density, high temperature resistance, oxidation resistance, and wear resistance, and are the first choice for a new generation of nuclear fuel cladding materials. However, the inherent defects of silicon carbide ceramics, the inherent brittleness and non-deformability of ceramic materials, and the processing and repair of parts make it very difficult to manufacture silicon carbide ceramics with complex shapes, so in actual manufacturing usually requires connection technology To realize the processing of complex ceramic pa...

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