Microstructure and shear fracture behavior of Mo/AlN/Mo symmetrical compositionally graded materials

Jia, Mingyong; Chen, Fei; Wu, Yueqi; Xu, Lidong; Shen, Qiang; Jiang, Nan; Sun, Jian

doi:10.1016/j.msea.2021.142591

Cited by 10 publications

(2 citation statements)

References 28 publications

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“…Owing to the Mo of high melting point, there is no risk of the metallic component melting and seeping out of the graphite mold at high temperatures. Second, as is shown in Figure S1, its CTE is close to that of AlN, which conforms to the principles of thermodynamics and ensures that the composite material will not crack due to excessive differences in thermal expansion coefficients 23 …”

Section: Resultssupporting

confidence: 69%

Enhanced shear strength of Cu/AlN/Cu gradient materials with continuous and quasi‐continuous interfacial structures

Chen,

Xiang,

Jia

et al. 2023

J Am Ceram Soc.

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In the electronic industry, the composite of copper (Cu) and aluminum nitride (AlN) is widely used, but obtaining Cu/AlN/Cu functionally gradient materials (Cu/AlN/Cu FGMs) in a single step using traditional laminated sintering processes has proven challenging due to significant differences in their physical properties. To address this issue, molybdenum (Mo), with a high melting point and low expansion, was involved in creating a continuous gradient structure with AlN and a quasi‐continuous interfacial structure with Cu. The continuous interfacial structure of Mo/AlN gradient materials was obtained by hot pressing at 1650°C. Subsequently, the quasi‐continuous interfacial structure of Cu/Mo heterogeneous metal joints with high shear strength was achieved by utilizing the diffusion welding method at 700–950°C. The results indicated that the optimum shear strength of Cu/AlN/Cu FGMs is around 90 MPa. However, Cu/AlN/Cu FGMs with different diffusion interlayers failed in different ways when shear occurred, which greatly depends on the phase compositions at the joint. The challenges are overcome by utilizing Mo to construct the continuous and quasi‐continuous interfaces, resulting in Cu/AlN/Cu FGMs with improved shear properties.

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Section: Resultssupporting

confidence: 69%

Enhanced shear strength of Cu/AlN/Cu gradient materials with continuous and quasi‐continuous interfacial structures

Chen,

Xiang,

Jia

et al. 2023

J Am Ceram Soc.

Self Cite

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“…For example, the surfaces of every engineering component are particularly prone to friction, heat, electrical, chemical, and electrochemical processes, all of which contribute to material degradation in the part during service. 19,20 This deterioration, however, cannot be resolved unless the tribological and corrosion phenomena are regularly monitored. 21,22 Surface alloying on the substrate has been used in some studies to achieve mixed material properties of the substrate and coatings.…”

Section: Introductionmentioning

confidence: 99%

Effect of dilution on the microstructure and high-temperature wear resistance of self-lubricating nickel alloy claddings

Gudala,

Rokkala,

Rao Medabalimi

et al. 2024

Tribology - Materials, Surfaces & Interfaces

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In this study, the impact of substrate dilution on the microstructure and tribological properties of tungsten inert gas (TIG)-deposited self-lubricating claddings was investigated. The dilution of Ti content on cladding increased as the TIG current increased, and the microhardness of the cladding decreased. The content of intermetallic phases such as TiNi and TiC increased with the increase in TIG current. The tribological studies revealed that coating dilution at higher TIG currents has prominent effects on wear behaviour at elevated temperatures. In both clads, the percentage decrease in hardness from higher TIG current to lower TIG current was noted as 31%. The higher dilution of Ti content in the cladding was found to be beneficial in tribological studies performed, especially at higher temperatures (≥400). Also, solid lubricants such as MoS2 and BaF2 encapsulation in the nickel alloy were found to be beneficial at both low and high temperatures.

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Future and Challenges of Coating Materials

Tusher,

Imam,

Shuvo

2023

Materials Horizons: From Nature to Nanomaterials

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Microstructure and shear fracture behavior of Mo/AlN/Mo symmetrical compositionally graded materials

Cited by 10 publications

References 28 publications

Enhanced shear strength of Cu/AlN/Cu gradient materials with continuous and quasi‐continuous interfacial structures

Enhanced shear strength of Cu/AlN/Cu gradient materials with continuous and quasi‐continuous interfacial structures

Effect of dilution on the microstructure and high-temperature wear resistance of self-lubricating nickel alloy claddings

Future and Challenges of Coating Materials

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