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Recently Published Articles

  1. Ag@Sn Core-Shell Powder Preform with a High Re-Melting Temperature for High-Temperature Power Devices Packaging

    Fuwen Yu, Bin Wang, Qiang Guo, Xin Ma, Mingyu Li and Hongtao Chen

    Version of Record online: 17 AUG 2017 | DOI: 10.1002/adem.201700524

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    Ag@Sn Core-shell Powder Preforms is successfully prepared, the preforms required only a short time (5 min) reflow processing at 250 °C, but the resulting interconnections can withstand a high temperature up to 480 °C and exhibit excellent electrical and thermal conductivities due to the high density and the embedded Ag particles in the interconnections.

  2. Effect of Creep and Aging on the Precipitation Kinetics of an Al-Cu Alloy after ne Pass of ECAP

    Markus Härtel, Philipp Frint, Kevin G. Abstoss and Martin F.-X. Wagner

    Version of Record online: 17 AUG 2017 | DOI: 10.1002/adem.201700307

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    The authors analyze how a combination of mechanical load, aging time, and temperature affects the precipitation kinetics of AA2017 after ECAP. The authors find that different creep strains lead to the formation of two different regions in the microstructure: regions (A) with only a few coarsened θ-phase precipitates, and regions (B) with numerous, finely dispersed precipitates.

  3. Influence of Ultrafine-Grained Layer on Gaseous Nitriding of Large-Sized Titanium Plate

    Quantong Yao, Jian Sun, Guanglan Zhang, Weiping Tong and Liang Zuo

    Version of Record online: 15 AUG 2017 | DOI: 10.1002/adem.201700455

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    The authors firstly investigat the effect of ultrafine-grained layer on gaseous nitriding of large titanium plate. The results show that the nitrided thickness of the ultrafine-grained plate is thicker than that of the coarse-grained plate at each nitriding temperature, and the greatest difference between the MSB treated and coarse-grained plates occur at 750 °C.

  4. Phase-Field Modeling of Microstructural Evolution by Freeze-Casting

    Tsung-Hui Huang, Tzu-Hsuan Huang, Yang-Shan Lin, Chih-Hsiang Chang, Po-Yu Chen, Shu-Wei Chang and Chuin-Shan Chen

    Version of Record online: 14 AUG 2017 | DOI: 10.1002/adem.201700343

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    A phase-field model is developed to investigate microstructural evolution by the freeze-casting process. Under the assumption that the colloidal particles can be represented by a concentration field, the interfacial condition of mass conservation, the Gibbs-Thomson condition, and particle segregation can be naturally included in the model. The morphology of dendritic ice crystal and accumulation of ceramic particles are accurately captured.

  5. Small Y Addition Effects on Hot Deformation Behavior of Copper-Matrix Alloys

    Yi Zhang, Huili Sun, Alex A. Volinsky, Bingjie Wang, Baohong Tian, Zhe Chai, Yong Liu and Kexing Song

    Version of Record online: 14 AUG 2017 | DOI: 10.1002/adem.201700197

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    The addition of Y to the Cu–Zr alloy effectively promotes dynamic recrystallization and improves thermal deformation activation energy, having a considerable influence on the peak power dissipation efficiency.

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