The improved SiC joints prepared by pressureless braze joining using Ti–Si interlayer with metallic infiltration

Wu, Li‐Xiang; Xue, Jia‐Xiang; Zhai, Jian-Han; Ma, Hao; Liu, Yang; Ren, Qisen; Liao, Yehong; Sun, Shi‐Kuan; Guo, Wei‐Ming; Zhu, Linlin; Lin, Hua‐Tay

doi:10.1016/j.ceramint.2022.08.279

Cited by 3 publications

(2 citation statements)

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“…17,18 In certain instances, additional alloying elements, namely, Cr, Mo, Cu, Co, and Mn, are intentionally introduced into these alloys to augment their performance in a variety of applications. 13,[19][20][21][22] Tian et al studied the bonding process of α-SiC using Ni-Si-Ti fillers and noticed the formation of Ni 3 Si 2 and Ni-Si phases at the interface. 23 Their findings demonstrated that the presence of Ti promotes the formation of a novel compound, Ni 49 Ti 14 Si 37 , within the interlayer region, in addition to the existing Ni-Si compounds (e.g., Ni-Si and Ni 3 Si 2 ).…”

Section: Introductionmentioning

confidence: 99%

“…The literature presents a comprehensive examination of the reaction mechanism and process involving an Ni‐based alloy and SiC 17,18 . In certain instances, additional alloying elements, namely, Cr, Mo, Cu, Co, and Mn, are intentionally introduced into these alloys to augment their performance in a variety of applications 13,19–22 . Tian et al.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Mo addition on interfacial microstructure and mechanical property of SiC joint brazed by an Ni–Si filler

Kamal,

Shukla,

Shinde

et al. 2024

J Am Ceram Soc.

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Ni‐based alloys provide good brazing filler characteristics for the many applications of SiC ceramics. Nevertheless, the presence of graphite is unavoidable in the reaction between Ni and SiC, leading to a significant degradation of the mechanical properties of the joint. This study investigates the effect of Mo in Ni–30Si alloy on the brazing of SiC at 1300°C, to regulate interfacial reactions and reduce residual stresses by decreasing overall coefficient of thermal expansion (CTE) values throughout the brazing process. The addition of Mo up to 8 at.% efficiently suppresses graphite accumulation by converting it into Mo2C + Ni3Mo3C phases and lowering the CTE to 5.4 × 10−6/°C. When the Mo loading exceeds 12 at.%, the interactions between the filler and SiC are reduced as a result of the non‐homogeneous dispersion of Mo. The experimental findings indicate that the joint without graphite has a lap shear strength of 107 MPa, which is nearly three times greater than the joint with graphite. Thermodynamic analyses are performed to provide a comprehensive understanding of the underlying mechanisms responsible for the formation of distinct phases in brazed joints.

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