A review paper on effect of the welding process of ceramics and metals

Zhang, Yan; Chen, Yankun; Yu, DeShui; Sun, Dongbai; Li, Hongmei

doi:10.1016/j.jmrt.2020.11.088

Cited by 58 publications

(27 citation statements)

References 113 publications

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“…In the first one, the joining temperature is in the same range as the melting point of the interlayer material. The second approach involves the formation of eutectic products between the interlayer and the base material, typically at a temperature that is lower than the melting point of the interlayer [ 20 ]. During the TLP bonding process, the ceramic parts are joined until the liquid phase becomes isothermally solidified [ 21 ].…”

Section: Introductionmentioning

confidence: 99%

Low Temperature Transient Liquid Phase Bonding of Alumina Ceramics with the Bi2O3-ZnO Interlayer

et al. 2022

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Alumina ceramics were joined by a transient liquid phase (TLP) bonding method at relatively lower temperatures, using mixed powders of Bi2O3 and ZnO with different weight ratios as interlayers between the ceramic components. Bonding was achieved at 750 °C for several of the prepared interlayer mixtures, which makes the applied approach attractive due to the relatively lower joining temperature and potentially low fabrication costs. Measurements by SEM and EDX were used to study the microstructure and chemical analysis of the obtained joints. It also allowed us to investigate the diffusion mechanism occurring in the systems, which resulted in the hypothesis that Zn2+/ZnO diffuses through the ceramics. XRD and Raman spectra were acquired to examine the reaction products that formed during the thermal treatment. The results showed that both ZnO and Bi2O3 react with each other as well as with alumina to form spinel and other products.

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Section: Introductionmentioning

confidence: 99%

Low Temperature Transient Liquid Phase Bonding of Alumina Ceramics with the Bi2O3-ZnO Interlayer

et al. 2022

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“…To form a metallurgical bond between metal and ceramic materials has been a challenging task over the past 20 years [ 1 , 2 , 3 , 4 , 5 ]. Dissimilar vacuum brazing is an alternative approach to obtaining a metal-ceramic joint.…”

Section: Introductionmentioning

confidence: 99%

Vacuum Brazing of Metallized YSZ and Crofer Alloy Using 72Ag-28Cu Filler Foil

et al. 2022

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The study focused on dissimilar brazing of metallized YSZ (Yttria-Stabilized Zirconia) and Crofer alloy using BAg-8 (72Ag-28Cu, wt%) filler foil. The YSZ substrate was metallized by sequentially sputtering Ti (0.5/1 μm), Cu (1/3 μm), and Ag (1.5/5 μm) layers, and the Crofer substrate was coated with Ag layers with a thickness of 1.5 and 5 μm, respectively. The BAg-8 filler demonstrated excellent wettability on both metallized YSZ and Crofer substrates. The brazed joint primarily consisted of Ag-Cu eutectic. The metallized Ti layer dissolved into the braze melt, and the Ti preferentially reacted with YSZ and Fe from the Crofer substrate. The globular Fe2Ti intermetallic compound was observed on the YSZ side of the joint. The interfacial reaction of Ti was increased when the thickness of the metallized Ti layer was increased from 0.5 to 1 μm. Both brazed joints were crack free, and no pressure drop was detected after testing at room temperature for 24 h. In the YSZ/Ti(0.5μ)/Cu(1μ)/Ag(1.5μ)/BAg-8(50μ)/Ag(1.5μ)/Crofer joint tested at 600 °C, the pressure of helium decreased from 2.01 to 1.91 psig. In contrast, the helium pressure of the YSZ/Ti(1μ)/Cu(3μ)/Ag(5μ)/BAg-8(50μ)/Ag(5μ)/Crofer joint slightly decreased from 2.02 to 1.98 psig during the cooling cycle of the test. The greater interfacial reaction between the metallized YSZ and BAg-8 filler due to the thicker metallized Ti layer on the YSZ substrate was responsible for the improved gas-tight performance of the joint.

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“…For instance, the Ti6Al4V alloy has excellent mechanical properties, such as high creep resistance and high-temperature specific strength [4]. Furthermore, relating it with advanced ceramics, such as alumina (Al 2 O 3 ), that has high thermal stability, low density, high wear resistance, and chemical inertness [5] can complement their advantages in terms of performance and economy [6]. The joining of Al 2 O 3 to titanium alloys can promote the production of advanced components combining the advantages of the two materials and it can be used in vacuum pipes, energy converters, semiconductor devices, missiles, rockets and satellites.…”

Section: Introductionmentioning

confidence: 99%

Joining of Ti6Al4V to Al2O3 Using Nanomultilayers

et al. 2022

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Diffusion bonding of Ti6Al4V to Al2O3 using Ni/Ti reactive nanomultilayers as interlayer material was investigated. For this purpose, Ni/Ti multilayer thin films with 12, 25, and 60 nm modulation periods (bilayer thickness) were deposited by d.c. magnetron sputtering onto the base materials’ surface. The joints were processed at 750 and 800 °C with a dwell time of 60 min and under a pressure of 5 MPa. Microstructural characterization of the interfaces was conducted by scanning electron microscopy (SEM) with energy-dispersive X-ray spectroscopy (EDS), and electron backscatter diffraction (EBSD). The mechanical characterization of the joints was performed by nanoindentation, and hardness and reduced Young’s modulus distribution maps were obtained across the interfaces. The joints processed at 800 °C using the three modulation periods were successful, showing the feasibility of using these nanolayered films to improve the diffusion bonding of dissimilar materials. Using modulation periods of 25 and 60 nm, it was also possible to reduce the bonding temperature to 750 °C and obtain a sound interface. The interfaces are mainly composed of NiTi and NiTi2 phases. The nanoindentation experiments revealed that the hardness and reduced Young’s modulus at the interfaces reflect the observed microstructure.

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A review paper on effect of the welding process of ceramics and metals

Cited by 58 publications

References 113 publications

Low Temperature Transient Liquid Phase Bonding of Alumina Ceramics with the Bi2O3-ZnO Interlayer

Low Temperature Transient Liquid Phase Bonding of Alumina Ceramics with the Bi2O3-ZnO Interlayer

Vacuum Brazing of Metallized YSZ and Crofer Alloy Using 72Ag-28Cu Filler Foil

Joining of Ti6Al4V to Al2O3 Using Nanomultilayers

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