A new strategy to fabricate nanoporous iron-based metallic glasses: Selective phase tailoring of amorphous-nanocrystalline composite alloys through electrochemical dissolution.
A new strategy to fabricate nanoporous iron-based metallic glasses: Selective phase tailoring of amorphous-nanocrystalline composite alloys through electrochemical dissolution.
复制标题
制造纳米多孔铁基金属玻璃的新策略：通过电化学溶解选择性相调整非晶-纳米晶复合合金
DOI：
10.1016/j.scriptamat.2017.01.029
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发表时间：
2017-05-01
影响因子：
6
通讯作者：
Zhang, Tao
中科院分区：
文献类型：
--
作者：
Jin, Yu;Li, Ran;Zhang, Tao
通过选择性溶解Fe-Nb-B复合合金中具有电化学活性的α-Fe纳米晶相来制备纳米多孔铁基金属玻璃(npFe-MGs)。所得npFe-MGs的韧带尺寸接近75 nm，孔径接近120 nm。通过选择不同的快速凝固条件制备的前驱体合金，可以调整npFe-MG的形貌(即孔径和孔数)。这种选择性的相调整方法为制备具有前景的纳米孔结构的金属玻璃提供了新的见解，以满足各种工程要求，例如催化、微波吸收、电容器等。(C)2017由Elsevier Ltd.出版的Acta Materialia Inc.保留所有权利。
A feasible strategy was developed to fabricate nanoporous iron-based metallic glasses (npFe-MGs) by selective dissolution of the electrochemically active alpha-Fe nanocrystalline phase from Fe-Nb-B composite alloys. The yielded npFe-MGs exhibited a ligament size of similar to 75 nm and a pore size of similar to 120 nm. Morphology of the npFe-MGs (i.e. pore size and pore number) could be tailored by the selection of precursor alloys prepared by varying rapid solidification conditions. Such a selective phase-tailoring approach provides new insights to the preparation of metallic glasses with promising nanoporous structure to satisfy a variety of engineering requirements, e.g. catalysis, microwave absorption, capacitor, etc. (C) 2017 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.