Effect of Ni content and brazing temperature on the self-joining of ZrB₂-SiC
by Jiayin Liu; Jie Zhang; Chunfeng Liu; Tianpeng Wang
International Journal of Computational Materials Science and Surface Engineering (IJCMSSE), Vol. 8, No. 1, 2019

Abstract: Pd-Co-Ni filler alloy was adopted to braze ZrB₂-SiC to itself. The reliable ZrB₂-SiC joints were obtained. The effects of Ni content and brazing temperature were investigated on the microstructure and properties of the ZrB₂-SiC joints using SEM and four-point bending method. All the joints consist of diffusion zone in ZrB₂-SiC ceramic, Pd-Si phase, Co-Si phase, and Ni-Co solid solution. During the brazing, Ni and Co can solute into each other, a certain control over the reaction between SiC from the ceramic and Co from the brazing alloy was obtained, which was beneficial for the joint strength.

Online publication date: Tue, 20-Aug-2019

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