Mechanical Properties of FeCr‐Based Composite Materials Elaborated by Liquid Metal Dealloying towards Bioapplication,Advanced Engineering Materials

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Mechanical Properties of FeCr‐Based Composite Materials Elaborated by Liquid Metal Dealloying towards Bioapplication
Advanced Engineering Materials ( IF 3.4 ) Pub Date : 2020-07-03 , DOI: 10.1002/adem.202000381
Morgane Mokhtari _{1,

2,

3} , Christophe Le Bourlot ₁ , Jannick Duchet-Rumeau ₂ , Eugénie Godet ₁ , Pierre-Antoine Geslin _{1,

3} , Sylvain Dancette ₁ , Takeshi Wada ₃ , Hidemi Kato ₃ , Eric Maire ₁

Affiliation

Liquid metal dealloying (LMD) is a new technology to create porous materials. From a (FeCr)_x‐Ni_1–x precursor, it is possible to get a bicontinuous structure of FeCr and Mg: a metal–metal composite. An etching step removes the Mg solid‐state solution phase to give a metal–air composite. The last step, polymer infiltration, gives metal–polymer composites. Herein, metal–metal, metal–air, and metal–polymer (rubbery or glassy polymers) with three different phase ratios are elaborated by LMD from Ni‐based precursors and their mechanical properties are analyzed. A full polymer infiltration into the pores is obtained and the epoxy polymer properties are not affected by the metallic foam presence. Concerning control of the mechanical properties, the material's second‐phase selection is a key factor. Herein, it is shown that the mechanical properties are easily designed by optimizing phase ratio, ligament size, and second‐phase type and that these materials are promising materials for biomedical applications.

中文翻译：

液态金属脱金属在生物应用中阐述的基于FeCr的复合材料的力学性能

液态金属脱合金（LMD）是一种用于制造多孔材料的新技术。从（FeCr）_x ‐Ni _{1– x}前驱体，可能会得到FeCr和Mg的双连续结构：一种金属-金属复合物。蚀刻步骤去除了Mg固态溶液相，得到了金属-空气复合物。最后一步，聚合物渗透，得到金属-聚合物复合物。在此，LMD从镍基前体中详细阐述了具有三种不同相比的金属-金属，金属-空气和金属-聚合物（橡胶或玻璃状聚合物），并对其机械性能进行了分析。获得了聚合物向孔中的完全渗透，并且环氧聚合物的性质不受金属泡沫的存在的影响。关于机械性能的控制，材料的第二相选择是关键因素。此处显示出，通过优化相比，韧带尺寸，

更新日期：2020-07-03

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