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Recently Published Articles

  1. Stress and Induced Electric Polarization Modeling in Polar, Semi-polar, and Non-Polar AlGaN/GaN Heterostructures for Piezotronics Application

    Bartłomiej K. Paszkiewicz

    Version of Record online: 24 FEB 2017 | DOI: 10.1002/adem.201600712

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    This paper presents model that allows analysis of polarization states present inside AlGaN/GaN heterostructures with a special attention to its applications in piezotronics field. The model enables to predict a polarization and stress state inside a heterostructure with any Al content and of any crystallographic orientation. It is presented, that it is possible to control polarization state of heterostructure.

  2. Intermetallic β-Solidifying γ-TiAl Based Alloys − From Fundamental Research to Application

    Svea Mayer, Petra Erdely, Franz Dieter Fischer, David Holec, Michael Kastenhuber, Thomas Klein and Helmut Clemens

    Version of Record online: 23 FEB 2017 | DOI: 10.1002/adem.201600735

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    Intermetallic titanium aluminides have gone their way from intensive fundamental research on a laboratory scale to an innovative class of light-weight high-temperature materials which have found their application in aerospace and automotive industries. The present review bridges the gap from development of the so-called TNM alloy, through structural characterization, engineering properties, manufacturing and processing technologies to all aspects of application.

  3. Advanced Structural Materials by Bioinspiration

    Flavia Libonati and Markus J. Buehler

    Version of Record online: 23 FEB 2017 | DOI: 10.1002/adem.201600787

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    Nature uses several strategies to turn weakness into strength. By combining few universal building blocks confined to a specific size and arranged into different substructures interacting through carefully designed interfaces, Nature is able to produce a large variety of multiscale hierarchical materials, which are efficient, multifunctional and sustainable.

  4. Laser Powder Bed Fusion – Materials Issues and Optimized Processing Parameters for Tool steels, AlSiMg- and CuCrZr-Alloys

    Bruno Buchmayr, Gerhard Panzl, Alexander Walzl and Christopher Wallis

    Version of Record online: 23 FEB 2017 | DOI: 10.1002/adem.201600667

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    The Laser Powder Bed Fusion (L-PBF) process is suitable to process ferrous and non-ferrous materials. The work describes the usability of two new steel grades for L-PBF process, the influence of post-weld heat treatments on the AlSi10Mg alloy, including microstructure, as well as mechanical properties and the investigations on CuCrZr parts, discussing mechanical, and thermal properties after heat treatment.

  5. Fabricating Three-Dimensional Periodic Micro Patterns on Photo-Resists Using Laser Interference Lithography

    Florian Rößler, Valentin Lang, Denise Günther and Andrés Fabián Lasagni

    Version of Record online: 21 FEB 2017 | DOI: 10.1002/adem.201600855

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    Mushroom geometries as in the springtails have demonstrated to show outstanding surface functionalities such as non-wetting and prevention of bacterial settlement. This study focus on the development of a laser-based fabrication method to produce three-dimensional periodic patterns with undercuts irradiating a multilayered system of SU-8 and LOR using interference patterns.