Recent Research on Ternary Phase Diagram of Gold Alloy

Zhuang, Dian Xiang; Xie, Ming; Liu, Lin Jing; Liu, Man Men; Chen, Yong Tai; Zhang, Ji Ming; Yang, Yong; Hu, Jie; Wang, Sai Bei; Wang, Song

doi:10.4028/www.scientific.net/amr.834-836.323

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References 17 publications

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“…Based on the above analysis, the filler alloy with the composition of (Au 79 Ni 17 Pd 4 ) 96 Ti 4 (wt.%) was designed to join the SiC ceramics. It can be found from Au–Ni–Pd ternary phase diagram [17] that the melting point of Au 79 Ni 17 Pd 4 (wt.%) is approximately 1423 K. Considering this, the experiments for the joining of SiC ceramics were carried out at 1423–1573 K for 10–90 min. The typical microstructure in the joints was analyzed and the formation mechanism of joints was discussed in detail.…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2019

Materials

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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.

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Section: Introductionmentioning

confidence: 99%

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

et al. 2019

Materials

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Recent Research on Ternary Phase Diagram of Gold Alloy

Cited by 1 publication

References 17 publications

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

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

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