Brazing of ZrB2–SiC–C and GH99 with AgCuTi/SiC interpenetrating network structural composite as an interlayer

Zhang, L.X.; Zhang, B.; Sun, Zheng; Liu, S.Y.; Lei, Min; Feng, Jicai

doi:10.1016/j.ceramint.2020.01.014

Cited by 16 publications

(5 citation statements)

References 30 publications

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“…At the same time, the B 4 C particle also consumed too much active Ti element, the reaction between Ti and SiC base material to form a reaction diffusion layer was hindered. 6,31,32 The shear strength of brazed joints with different B 4 C additions confirmed this analysis, as shown in Figure 11.…”

Section: Effect Of the Amount Of B 4 C On The Microstructure Evolutio...supporting

confidence: 67%

“…When the content of B 4 C was too high, it tended to form small blocks (the aggregated B 4 C as shown in Figure 10), which affected the fluidity of the alloy, split the solid solution with good plasticity, resulted in the more complex stress situation in the joint. At the same time, the B 4 C particle also consumed too much active Ti element, the reaction between Ti and SiC base material to form a reaction diffusion layer was hindered 6,31,32 . The shear strength of brazed joints with different B 4 C additions confirmed this analysis, as shown in Figure 11.…”

Section: Resultsmentioning

confidence: 58%

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Effect of the B₄C particles on the brazed joints of SiC ceramics and 2219 aluminum alloy

Cai

Teng

et al. 2022

Int J Ceramic Engine & Sci

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A two-step process, including the premetallization of the SiC ceramic by Ag-26.7Cu-4Ti+B 4 C and the followed brazing with the Al-based filler alloy, was developed to join 2219 aluminum alloy and the metallized SiC. The influence of metallization temperature and the B 4 C addition on the microstructure and mechanical properties of the joint was analyzed. The reaction products of Ti and B 4 C were detected in the brazing seam, such as Ti 2 B, TiC and graphite. With increasing of metallization temperature and B 4 C addition content, the shear strength of joint first increased and then decreased. The joint shear strength reached 14.0 MPa when SiC metallized with Ag-26.7Cu-4Ti+1%B 4 C at 930 • C for 10 min, which showed that appropriate addition of B 4 C in Ag-26.7Cu-4Ti metallization layer could regulate the coefficient of thermal expansion difference between 2219 aluminum alloy and SiC to relieve the residual stress and improve the shear strength of their brazed joint.

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Section: Effect Of the Amount Of B 4 C On The Microstructure Evolutio...supporting

confidence: 67%

Section: Resultsmentioning

confidence: 58%

Effect of the B₄C particles on the brazed joints of SiC ceramics and 2219 aluminum alloy

Cai

Teng

et al. 2022

Int J Ceramic Engine & Sci

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“…The metallized layer, formed by the reaction of Ag‐Cu‐Ti and SiC, has an important effect on the properties of the joint 27 . The following equation occurs between Ti and SiC: 9,18,21,23,28,34,35

SiC + Ti = TiC + Si

5 Ti + 3 Si = T {normali}_{5} S {normali}_{3}

2 TiC + Ti + Si = T {normali}_{3} Si {normalC}_{2}

…”

Section: Resultsmentioning

confidence: 99%

Effect of metallization temperature on brazing joints of SiC ceramics and 2219 aluminum alloy

Teng

Hua

et al. 2021

Int J Applied Ceramic Tech

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A two-step process involving, the pre-metallization of the SiC ceramic by Ag-Cu-Ti foil and the Al based filler alloy was developed to join 2219 aluminum alloy and the metallized SiC. The composition of metallized SiC layer was investigated. The effect of metallization temperature on the microstructure and mechanical properties of the joint was analyzed. The brazing process showed that Al from the brazing filler and 2219 substrate reacted with Ag-Cu-Ti alloy to form intermetallic compounds. Al 3 Ti, Al 2 Ag and Al 2 Cu were detected in the joint. Ti 5 Si 3 , TiC and Ti 3 SiC 2 compounds were found adjacent to the reaction layer of the Ti and SiC. With increasing of metallization temperature, the shear strength of joint first increased and then decreased. The joint shear strength reached 16.0 MPa when the pre-metallization temperature reached 1000 • C and holding time was 10 min.

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“…The active elements or rare earth elements in the active solder react with the ceramic and form chemical bonds, which can effectively improve the wettability of solder on the ceramic surface. [ 7–10 ] Kolenak [ 11 ] wetted Al 2 O 3 ceramics with Sn2Ti active solder in a vacuum furnace at 700 °C. Due to the residual stress in Al 2 O 3 /Sn2Ti/steel, the shear strength was only 18.3 MPa.…”

Section: Introductionmentioning

confidence: 99%

Effect of SiC Particles Content on Microstructure and Shear Strength of the Al₂O₃/Zn5Al−xSiC/2024Al Joint

Chen

2022

Adv Eng Mater

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Zn5Al−xSiC composite solder was used to join Al2O3 ceramic and 2024Al with ultrasonic‐assisted soldering process. Before the soldering of Al2O3 ceramic and 2024Al, the Al2O3 ceramics were wetted by molten Zn5Al solder under the action of ultrasonic. In the process of ultrasonic wetting, Al element in Zn5Al solder and O element are formed Al2O3 on the Al2O3 ceramic surface. SiC particles are mixed with molten metal at 420 °C by mechanical agitation. SiC particles effectively prevent solder from shrinking during cooling. In the soldered seam, Zn element diffuses to 2024Al base metal along the grain boundary and dissolves the Al grains in 2024Al to form a diffusion layer in the soldered seam. At the same time, SiC particles refine the microstructure grain in the soldered seam and strengthens the mechanical properties of the solder. The Al2O3/Zn5Al‐7 wt% SiC/2024Al joint strength is up to 66 Mpa, which was increased by 70% compared with Al2O3/Zn5Al/2024Al joint (39 MPa). However, the strength of the Al2O3/Zn5Al‐9 wt% SiC/2024Al joint drops sharply to 23 MPa. Excessive SiC particles formed agglomerates inside the solder and reduced the fluidity of the solder.

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Brazing of ZrB2–SiC–C and GH99 with AgCuTi/SiC interpenetrating network structural composite as an interlayer

Cited by 16 publications

References 30 publications

Effect of the B₄C particles on the brazed joints of SiC ceramics and 2219 aluminum alloy

Effect of the B₄C particles on the brazed joints of SiC ceramics and 2219 aluminum alloy

Effect of metallization temperature on brazing joints of SiC ceramics and 2219 aluminum alloy

Effect of SiC Particles Content on Microstructure and Shear Strength of the Al₂O₃/Zn5Al−xSiC/2024Al Joint

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Brazing of ZrB2–SiC–C and GH99 with AgCuTi/SiC interpenetrating network structural composite as an interlayer

Cited by 16 publications

References 30 publications

Effect of the B4C particles on the brazed joints of SiC ceramics and 2219 aluminum alloy

Effect of the B4C particles on the brazed joints of SiC ceramics and 2219 aluminum alloy

Effect of metallization temperature on brazing joints of SiC ceramics and 2219 aluminum alloy

Effect of SiC Particles Content on Microstructure and Shear Strength of the Al2O3/Zn5Al−xSiC/2024Al Joint

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Product

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Effect of the B₄C particles on the brazed joints of SiC ceramics and 2219 aluminum alloy

Effect of the B₄C particles on the brazed joints of SiC ceramics and 2219 aluminum alloy

Effect of SiC Particles Content on Microstructure and Shear Strength of the Al₂O₃/Zn5Al−xSiC/2024Al Joint