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  1. Microstructural and Crystallographic Insights in a Martensite/Austenite Dual Phase Ni–Mn–Sb Alloy

    Chunyang Zhang, Haile Yan, Yudong Zhang, Claude Esling, Xiang Zhao and Liang Zuo

    Version of Record online: 25 JUL 2017 | DOI: 10.1002/adem.201700221

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    Ni–Mn–Sb alloys are promising multi-functional materials owing to their various magnetic properties, which are closely associated with the crystal structure, microstructure, crystallographic features of martensite, and the martensitic transformation. In the present work, a comprehensive study has been conducted on microstructural and crystallographic characteristics of martensite and martensitic transformation orientation relationship in Ni–Mn–Sb alloys.

  2. Texture, Microstructure, and Surface Mechanical Properties of AZ31 Magnesium Alloys Processed by ECASD

    Emigdio Mendoza Fandiño, Raúl E. Bolmaro, Pablo Risso, Vanina Tartalini, Patricia Fernández Morales and Martina Ávalos

    Version of Record online: 24 JUL 2017 | DOI: 10.1002/adem.201700228

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    The textures of Mg AZ31B alloy sheets subject to Equal Channel Angular Sheet Drawing (ECASD) at various temperatures are measured by X-ray diffraction and EBSD. Figure shows twinning behavior (White lines) of the internal region of the sample subject to ECASD with 120o die at 100 oC.

  3. Tailored Surface Properties of Ceramic Foams for Liquid Multiphase Reactions

    Katja Schelm, Michael Schwidder, Janis Samuel, Franziska Scheffler and Michael Scheffler

    Version of Record online: 21 JUL 2017 | DOI: 10.1002/adem.201700418

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    Ceramic foams are prepared and coated with pre-ceramic polymers. These coating offers to tailor the surface properties like the wetting behavior in wide range by variation of the pyrolysis temperature. Due to the foams structure, they are useful for novel multi-phase mixing processes. This work shows the dependence of the phase dispersion of two immiscible liquid phases. This work shows the dependence of the phase dispersion of two immiscible liquid phases on the surface wettability of the foams.

  4. Direct Liquid Injection − Low Pressure Chemical Vapor Deposition of Silica Thin Films from Di-t-butoxydiacetoxysilane

    Mattias Vervaele, Bert De Roo, Jolien Debehets, Marilyne Sousa, Luman Zhang, Bart Van Bilzen, Stephanie Seré, Herve Guillon, Markku Rajala, Jin Won Seo and Jean-Pierre Locquet

    Version of Record online: 17 JUL 2017 | DOI: 10.1002/adem.201700425

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    This work describes the use of the unusual silicon chemical vapor deposition precursor di-t-butoxydiacetoxysilane (DADBS), which allows the safe deposition of thin silica films in a controlled and reproducible manner at a lower thermal budget with a newly developed direct liquid injection – low pressure chemical vapor deposition system.

  5. Severe Plastic Deformation by Equal Channel Angular Pressing and Rolling: The Influence of the Deformation Path on Strain Distribution

    Andrea M. Kliauga, Vitor L. Sordi, Natalia S. De Vincentis, Raúl E. Bolmaro, Norbert Schell and Heinz-Günter Brokmeier

    Version of Record online: 14 JUL 2017 | DOI: 10.1002/adem.201700055

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    Rolling and equal channel angular pressing (ECAP), and the response offered by three materials were compared. The different strain paths of ECAP and rolling do not affect the strength, but rolling leads to smaller domain sizes and an accentuated texture, which induces elastic and plastic anisotropy. These processes operate at different strain rates; thus, in low stacking fault energy (SFE) materials, a more effective grain fragmentation by deformation- induced twins is observed after the ECAP process.

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