Diffusion brazing of monocrystal silicon by using germanium as filler material

Xiong, Jiangtao; Zhu, Yue; Du, Lifei; Gao, Ya; Li, Jinglong

doi:10.1016/j.vacuum.2016.08.018

Cited by 3 publications

(1 citation statement)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Upon elevating the brazing temperature, its thickness increases. When the reaction layer was first formed, its growth was then controlled through a diffusion mechanism [29]. It is noteworthy that the diffusion rate was related to concentration gradient and temperature.…”

Section: Resultsmentioning

confidence: 99%

Characterization of SiC Ceramic Joints Brazed Using Au–Ni–Pd–Ti High-Temperature Filler Alloy

et al. 2019

Materials

View full text Add to dashboard Cite

In this work, (Au79Ni17Pd4)96Ti4 (wt.%) filler alloy was designed and employed to join SiC ceramics. The effects of brazing temperature and soaking time on the microstructure and fracture morphology of joints were investigated. The results show that the joint obtained can be described as SiC/reaction layer/braze/reaction layer/SiC. The reaction layer was composed of TiC and Au (Si, Ti). The wettability of the filler alloy toward the SiC ceramics was analyzed. The braze zone was mainly constituted by Pd2Si, Ni2Si, and Au (Ni, Si). A large number of nano-sized TiC particles were distributed within the Au (Ni, Si) layer. The formation mechanism of the braze containing different phases was discussed. The brazing temperature and soaking time had a significant effect on the reaction layer at the SiC/braze interface and TiC particles within the Au (Ni, Si) layer, while they showed a negligible effect on the Pd2Si and Ni2Si within the braze. The inherent reason was also clarified in detail. The joint fractography indicated that a good bonding was achieved between the filler alloy and SiC, while joint fracture was primarily induced by the thermal stresses residing after the brazing cycle.

show abstract

Section: Resultsmentioning

confidence: 99%