MATERIALS CHEMISTRY AND PHYSICS
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2025
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IF 4.7
Ruofan Wang,Yanfu Yan,Wenjun Li,Zhiming Li
Cu–Al soft soldering plays a crucial role in the fabrication of Cu–Al composites. In this study, a new rosin-type flux for Cu–Al direct soldering was synthesized, and G-1 (Sn42Bi58 paste) and G-2 (Sn64.7Bi35Ag0.3 paste) soft soldering pastes were prepared. The results of flux physicochemical tests are as follows: density 1.11 g/cm 3 , pH 5.2, viscosity 32 Pa s, and non-corrosive to the copper plate. These are in line with the requirements for soldering applications. The wettability test results show that G-1 and G-2 displayed good wettability on the Cu and Al plates. This is in line with the standard Cu–Al soft soldering paste. The mechanical property test showed that G-2 had better mechanical properties than G-1, with a tensile strength of 112.57 MPa. SEM revealed that the IMC (intermetallic compound) layer of G-1 was flatter than that of G-2. This is closely related to the fact that the Ag in Sn64.7Bi35Ag0.3 powders can reduce the enrichment of metallic Bi and refine the grains.
研究领域:
材料科学
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焊接工程
✓ 已验证
产品关联
DOI
高影响因子
Materials
·
2024
·Vol. 17
·期 15
·3812
·
IF 3.1
Shaohong Liu,Hairui Liu,Limin Zhou,Hao Cui,Manmen Liu,Li Chen,Ming Wen,Haigang Dong,Feng Liu,Wei Wang,Song Li
A novel AgCuTi brazing foil with a unique microstructure was developed, which could achieve strong vacuum brazing of Ti6Al4V (TC4) and sapphire. The brazing foil was composed of Ag solid solution (Ag(s,s)), Cu solid solution (Cu(s,s)), and layered Ti-rich phases, and had a low liquidus temperature of 790 °C and a narrow melting range of 16 °C, facilitating the defect-free joining of TC4 and sapphire. The sapphire/TC4 joint fabricated by using this novel AgCuTi brazing foil exhibited an outstanding average shear strength of up to 132.2 MPa, which was the highest value ever reported. The sapphire/TC4 joint had a characteristic structure, featuring a brazing seam reinforced by TiCu particles and a thin Ti3(Cu,Al)3O reaction layer of about 1.3 μm. The fracture mechanism of the sapphire/TC4 joint was revealed. The crack originated at the brazing seam with TiCu particles, then propagated through the Ti3(Cu,Al)3O reaction layer, detached the reaction layer from the sapphire, and finally penetrated into the sapphire. This study offers valuable insights into the design of active brazing alloys and reliable metal–ceramic bonding.
研究领域:
材料科学
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焊接工程
✓ 已验证
DOI
PubMed
高影响因子
Journal of Materials Research and Technology-JMR&T
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2025
·
IF 6.6
Hong Bian,Xiukai Chen,Wenjun Yu,Boyang Huang,Zizhao Guan,Yanyu Song,Le Fu,Duo Liu,Xiaoguo Song
In conventional dental implant procedures, glass-ceramic dental crowns were traditionally bonded to titanium (Ti) abutment using organic glue cementation. However, degradation of the adhesive could result in crown loss. Therefore, it is crucial to explore alternative strategies for bonding the crown and abutment. In this study, we propose employing dissimilar brazing as a new approach for joining these two components. To assess its feasibility, Ti/ZrO 2 –SiO 2 nanocrystalline glass-ceramic (ZS-NCGC) joints were fabricated by brazing using Ni/Zr composite foils. The corrosion behavior and mechanism of the Ti/ZS-NCGC joint in artificial saliva were investigated. The complex interface of the Ti/ZS-NCGC joint increased the corrosion current and decreased the impedance, resulting in slightly lower corrosion resistance than the Ti substrate. However, after soaking the Ti/ZS-NCGC joint in acidic artificial saliva for 7 days, no pitting corrosion appeared, demonstrating excellent corrosion resistance. In addition, after adding highly destructive F ions, corrosion mainly occurred on layered α-(Ti, Zr), blocky (Ti, Zr) 2 Ni, and (α-(Ti, Zr) + (Ti, Zr) 2 Ni) eutectoid structure. The findings presented herein demonstrate the significant potential of dissimilar brazing in facilitating the robust bonding between glass-ceramic dental crowns and Ti abutment.
研究领域:
材料科学
·
牙医学
✓ 已验证
产品关联
DOI
高影响因子
MATERIALS CHARACTERIZATION
·
2022
·
IF 4.537
Z. Sun,X.X. Zhu,H.Z. Chen,L.X. Zhang
To address the excessive formation of brittle compounds when brazing TiAl alloys, a TiZrHfCoNiCu high-entropy brazed filler was developed to realize the brazing of TiAl/Ti 2 AlNb couples. The TiAl/Ti 2 AlNb brazed joints can be divided into 4 zones, i.e., 2 diffusion zones at the TiAl/braze filler, Ti 2 AlNb/braze filler interfaces and 2 zones divided inside the brazed seam. α 2 + γ-TiAl were the main reaction products formed at the TiAl/braze filler interface and α 2 + Ti 0.5 Al 0.12 Nb 0.38 were the main reaction products at the Ti 2 AlNb/braze filler interface. Effects of brazing temperatures on the interfacial microstructure and mechanical properties of the TiAl/Ti 2 AlNb brazed joints were investigated. When brazing at 1100°C/15 min, the highest shear strength can reach 157 MPa (room temperature), and 123 MPa (650°C) respectively. The relationship between the microstructure and the corresponding mechanical response were discussed in detail. This research can offer new insights on developing desirable brazing filler when joining TiAl and TiAl based alloys.
研究领域:
材料科学
·
焊接工程
✓ 已验证
产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2024
·
IF 5.1
Jingru Xin,Xinlei Ding,Wei Guo,Xinrong Li,Kaizhi Yan,Yuxin Wang
The ZrO 2 ceramics was successfully brazed by the newly designed bismuth-borate glass. The mechanism which is influenced by holding time and cooling rate on morphology and mechanical performance of joints were thoroughly analyzed under 675 °C. The study introduced an innovative bismuth-borate glass composition as the brazing material, providing an effective solution for high-strength joint formation in ZrO 2 ceramics. The findings showed that when brazing temperature was 675 °C, well-formed joints were obtained under 0–90 min and cooling rate range of air cooling or slower, whiskers of Al 4 B 2 O 9 and crystals of Al 5 BO 9 were observed in the joints, with their number and size increasing as the holding time extended and the cooling rate decreased. Systematic analysis demonstrated that the optimized process parameters, including a holding time of 30 min and a controlled cooling rate of 3 °C/min, resulted in a maximum shear strength of 83 MPa. The joint formed under these conditions was a reinforced composite consisting of aluminum borate crystals. The joint of ZrO 2 ceramics brazed with Bismuth oxide-Boron oxide-Aluminium oxide (50Bi 2 O 3 -45B 2 O 3 -5Al 2 O 3 ) glass is the reinforced composite joint consisting of aluminum borate crystals.
研究领域:
材料科学
·
工程学
✓ 已验证
产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2023
·
IF 5.2
Chenghao Zhang,Chun Li,Xiaoqing Si,Jianwei Gao,Junlei Qi,Jian Cao
Cerium oxide (CeO 2 ) in the range of 0–16 mol.% is used to enhance the joint of Ag-based filler for brazing yttria-stabilized zirconia (YSZ) ceramic in the air. Ag–CeO 2 filler is first adopted to braze YSZ ceramic (3 mol.% yttria). The CeO 2 is found to cluster at the interface of YSZ and Ag seam, improving the wetting behavior of Ag-based fillers. The maximum shear strength of YSZ joints can reach 35.1 MPa using Ag–1CeO 2 fillers at 1050 °C/30 min. Moreover, CeO 2 is used to enhance the Ag–CuO filler for brazing YSZ ceramic. As the increase of CeO 2 content, the contact angle of Ag–CuO on the YSZ surface decreases first and then increases. The average shear strength could reach 76.5 MPa using Ag–CuO–8CeO 2 at 1050 °C/30 min. The CeO 2 could decrease residual stress by adjusting the linear expansion coefficient of Ag-based fillers. Therefore, this study provides a new strategy for exploring air brazing fillers.
研究领域:
材料科学
·
焊接技术
✓ 已验证
产品关联
DOI
高影响因子
Journal of Manufacturing Processes
·
2023
·
IF 6.2
Shuye Zhang,Jincheng Lin,Ce Wang,Peng He,Wei Wang,Xinfei Zhang,Tong Wu,Han Mei,Yue Liu,Panpan Lin,Tiesong Lin
The brazed joint of sapphire transparent ceramic and Kovar alloy was prepared using AgCuTi and AgCuTiB composite filler, and the main focus was the effect of B element on the wetting behavior, interface composition and joint mechanical performance. The reliable joint of sapphire transparent ceramic and Kovar alloy was obtained by vacuum brazing with AgCu28-6Ti-0.45B (wt%) composite filler. The typical interfacial structure of the joint brazed at 825 °C for 10 min was determined as sapphire/Ti 3 Cu 3 O/Ag(s,s) + Cu(s,s) + disperse TiB/TiFe 2 + TiNi 3 /Kovar. The results showed that the addition of B could contributed to an optimized interfacial structure via (i) in-situ forming fine TiB whisker reinforcement phase and refining the interface structure and (ii) reducing the diffusion degree of alloy side elements to inhibit the generation of brittle phase, and the maximum shear strength of the joint with AgCu28-6Ti-0.45B (wt%) reached 125 MPa more than twice the joint without B additive. On the other hand, the wetting experiment showed that the addition of B as a solid particle decreased the fluidity of the composite filler, and when the addition of B was excessive, no dense TiB whiskers were produced in the interface. This study provides ideas for the optimization and improvement of sapphire composite connection, and points out that the generation of reinforcing phase is accompanied by the reduction of fluidity, so it is necessary to reasonably control the proportion of reinforcing phase.
研究领域:
材料科学
·
焊接工程
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Research and Technology-JMR&T
·
2020
·
IF 5.289
Wei Wang,Yaping Liu,Gang Wang,Caiwang Tan,Wei Cao
In this study, the carbon fiber reinforced ZrB 2 -SiC composite ceramic was joined to Ti6Al4V alloy with Ag-Cu eutectic alloy filler at varied holding time and a fixed temperature of 800℃. Interface microstructure and shear strength of brazing joints were studied. The brazed ZSC f ceramics/AgCu/TC4 alloy is endowed with good metallurgical bondings. A typical interfacial structure of joints brazed for 10 min was found as ZSC f /TiC/Ti 5 Si 3 /Ag(s,s)/Cu(s,s) + TiC/TiCu/Ti 2 Cu/(TiC + TiCu)/TC4 alloy. Increase of holding time did not vary the precipitated phase of the joints but decreased thickness of the Ag(s, s) and Cu(s, s) reaction layer and gradually thickened the Ti-Cu reaction layer near the TC4 side. The formation process of reaction products was discussed in detail. The holding time substantially influenced shear strength of the joints. A maximum shear strength of 39 MPa was reached at a brazing time of 20 min.
研究领域:
材料科学
·
焊接工程
✓ 已验证
产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2022
·
IF 5.532
Haohan Wang,Jinghuang Lin,Jian Cao,Junlei Qi
Joining is an indispensable process for expanding the application of ceramics and composites. Recently, glasses have been extensively explored for ceramic/composite joining owing to their unique functional needs. However, the difficulty in detecting amorphous materials and lack of enthalpy data make the interfacial reaction mechanism challenging to investigate. In this study, the interfacial reaction mechanism of joints of SiO 2f /SiO 2 composite-brazed bismuth glass was thoroughly explored. SiO 2 was dissolved from the matrix and used throughout the brazing process. In the initial stage, silica reacts with the brazing glass to form Bi 4 (SiO 4 ) 3 . Then, owing to the decomposition of Bi 4 (SiO 4 ) 3 , the silicate glass replaced the bismuth glass. Finally, some precipitation of SiO 2 occurred at the brazing seam owing to an entropy–enthalpy dominating mode. This study may instigate the design of brazing glasses for joining SiO 2f /SiO 2 composites.
研究领域:
材料科学
·
焊接工程
✓ 已验证
产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2021
·
IF 4.527
Lei Chen,Chun Li,Xiaoqing Si,Xiaoyang Wang,Zhiquan Wang,Jian Cao
Based on reactive air brazing (RAB), we designed a new type of sealant (Ag–xCuAlO 2 ) for joining 3 mol.% yttria-stabilized zirconia (YSZ) ceramics and AISI 310S stainless steel. The CuAlO 2 content affected the wettability of the sealant on the YSZ surface, and the joints had a high shear strength when Ag–2 wt.%CuAlO 2 , which had a small contact angle on the YSZ substrate, was used as the sealant. In addition, the thickness of the oxide layer was reduced compared to that for the Ag–CuO sealant. The effects of the processing parameters on the microstructure and shear strength of the joints were investigated, and the as-brazed joints reached their highest shear strength (93.7 MPa) when brazed at 1040 °C for 30 min. After high-temperature oxidation at 800 °C for 200 h, the shear strength of the joints remained at 50 MPa, and no apparent change in the microstructure was observed, proving that the joints possessed excellent oxidation resistance .
研究领域:
材料科学
·
焊接技术
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Xiangyu Han,Jiaqi Wang,Yongguang Liu,Lei Dai,Ling Wang,Shan Liu
All-solid-state sodium-ion batteries (ASSIBs) with inorganic solid electrolytes can achieve high safety and high energy density when paired with a high-voltage cathode. However, the slow charge transfer and chemical instability between the high-voltage cathode and rigid electrolyte seriously restrict its development. Herein, a high energy density Na4MnCr(PO4)3-based ASSIBs have been achieved by using a simple low-temperature brazing strategy. The in situ generated secondary phase can not only achieve close contact and rapid charge transfer between the Na4MnCr(PO4)3 cathode and electrolyte but also change the interface electric field distribution and reduce interface side reactions effectively. This strategy is simple and easy to implement and has important guidance for the development of other high-energy all-solid-state batteries.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SURFACE & COATINGS TECHNOLOGY
·
2024
·
IF 5.3
Zhaoyang Zheng,Dong Han,Tianyu Zhang,An Du,Ruina Ma,Yongzhe Fan,Xue Zhao,Xiaoming Cao
The Co-depletion zone in WC–Co brazed joints is the main zone of joint failure, so it is crucial to explore novel processes to inhibit the Co-depletion zone and enhance the joint shear strength. In this study, a composite process of pre-plating Cu on the WC–Co surface + brazing was designed. Co-depletion zone reduces from 6 μm to 1 μm due to the Cu plating. Meanwhile, the formation of a plating fusion zone in the filler layer transforms TiCo with a thickness of 2.5 μm into a small number of TiCo particles. Moreover, the high concentration of Cu atoms in the vicinity of the WC particles at the interface changes the Co-segregation layer in the WC into a Cu-rich layer. The concentration of Cu in the filler layer leading to precipitation of TiCu and Ti 2 Cu particles. Ti 2 Cu particles encapsulated by ductile Ag–Cu–In ternary eutectic contribute to inhibit the cracks propagation. The shear strength of the joints was enhanced by 51.3 % to 295 MPa. The composite process of pre-plating on the base material surface + brazing has positive significance in inhibiting the excessive diffusion of elements from the base materials to the filler layer.
研究领域:
材料科学
·
冶金学
·
焊接工程
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）