Joining CoSb3 to Metal Surface of FGM Electrode for Thermoelectric Modules by SPS
The fabrication of electrodes is one of the key techniques in constructing thermoelectric elements for the practical applications. In this work, the commercial active brazing alloy “Incusil-ABA” was used for the joining of CoSb3 to the Cu surface of the graded electrode materials (Cu/AlN/Cu) by using spark plasma sintering (SPS). The bonding was performed in vacuum at temperatures 500°C for 10min. The brazing and diffusion bonding process were investigated by analyzing the crystal structure and microstructure of the bonding interface using X-ray diffraction and scanning electron microscopy, and its composition distribution was also analyzed by energy dispersive X-ray.
Wei Pan and Jianghong Gong
T. Sui et al., "Joining CoSb3 to Metal Surface of FGM Electrode for Thermoelectric Modules by SPS", Key Engineering Materials, Vols. 368-372, pp. 1858-1861, 2008