Honeycomb-like porous metallic glasses decorated by Cu nanoparticles formed by one-pot electrochemically galvanostatic etching
Pitting corrosion is a common localized corrosion phenomenon, which can lead to cracks and mechanical failure in structural metal materials. On the contrary, pitting corrosion could be a beneficial tool for generating large-area porous structures, which holds a great premise in a number of functiona...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2020-11-01
|
| Series: | Materials & Design |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0264127520306444 |
| _version_ | 1811296118887153664 |
|---|---|
| author | Xuekun Luo Mengmeng Meng Ran Li Zian Li Ivan S. Cole Xiao-Bo Chen Tao Zhang |
| author_facet | Xuekun Luo Mengmeng Meng Ran Li Zian Li Ivan S. Cole Xiao-Bo Chen Tao Zhang |
| author_sort | Xuekun Luo |
| collection | DOAJ |
| description | Pitting corrosion is a common localized corrosion phenomenon, which can lead to cracks and mechanical failure in structural metal materials. On the contrary, pitting corrosion could be a beneficial tool for generating large-area porous structures, which holds a great premise in a number of functional services, such as catalysis, sensing, storage, imprint lithography, and membranes. Herein we presents an electrochemical approach for creating a large-area honeycomb-like porous structure in Zr-based metallic glasses. A pitting process followed by subsurface tunnel etching in NaCl solution elicits to characteristic micrometer scale channels and nanometer size amorphous sidewalls decorated by Cu nanoparticles on the metallic glass substrate. A root-shape growing mechanism of tunnels initiated from pits and penetrating into alloy matrix is postulated. In addition, the effect of alloy composition on the microstructure of honeycomb-like porous metallic glasses is also investigated in detail. |
| first_indexed | 2024-04-13T05:43:44Z |
| format | Article |
| id | doaj.art-1ba89326d1d146ffb5e6d019fe5a2215 |
| institution | Directory Open Access Journal |
| issn | 0264-1275 |
| language | English |
| last_indexed | 2024-04-13T05:43:44Z |
| publishDate | 2020-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials & Design |
| spelling | doaj.art-1ba89326d1d146ffb5e6d019fe5a22152022-12-22T03:00:00ZengElsevierMaterials & Design0264-12752020-11-01196109109Honeycomb-like porous metallic glasses decorated by Cu nanoparticles formed by one-pot electrochemically galvanostatic etchingXuekun Luo0Mengmeng Meng1Ran Li2Zian Li3Ivan S. Cole4Xiao-Bo Chen5Tao Zhang6Key Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Materials Science and Engineering, Beihang University, Beijing 100191, China; Aviation Key Laboratory of Advanced Corrosion and Protection on Aviation Materials, Beijing Institute of Aeronautical Materials, Beijing 10095, ChinaKey Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Materials Science and Engineering, Beihang University, Beijing 100191, ChinaKey Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Materials Science and Engineering, Beihang University, Beijing 100191, China; Corresponding authors.Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, ChinaSchool of Engineering, RMIT University, Carlton 3053, VIC, AustraliaSchool of Engineering, RMIT University, Carlton 3053, VIC, AustraliaKey Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Materials Science and Engineering, Beihang University, Beijing 100191, China; Corresponding authors.Pitting corrosion is a common localized corrosion phenomenon, which can lead to cracks and mechanical failure in structural metal materials. On the contrary, pitting corrosion could be a beneficial tool for generating large-area porous structures, which holds a great premise in a number of functional services, such as catalysis, sensing, storage, imprint lithography, and membranes. Herein we presents an electrochemical approach for creating a large-area honeycomb-like porous structure in Zr-based metallic glasses. A pitting process followed by subsurface tunnel etching in NaCl solution elicits to characteristic micrometer scale channels and nanometer size amorphous sidewalls decorated by Cu nanoparticles on the metallic glass substrate. A root-shape growing mechanism of tunnels initiated from pits and penetrating into alloy matrix is postulated. In addition, the effect of alloy composition on the microstructure of honeycomb-like porous metallic glasses is also investigated in detail.http://www.sciencedirect.com/science/article/pii/S0264127520306444Metallic glassPorous materialPitting corrosionElectrochemical etchingGrowth mechanism |
| spellingShingle | Xuekun Luo Mengmeng Meng Ran Li Zian Li Ivan S. Cole Xiao-Bo Chen Tao Zhang Honeycomb-like porous metallic glasses decorated by Cu nanoparticles formed by one-pot electrochemically galvanostatic etching Materials & Design Metallic glass Porous material Pitting corrosion Electrochemical etching Growth mechanism |
| title | Honeycomb-like porous metallic glasses decorated by Cu nanoparticles formed by one-pot electrochemically galvanostatic etching |
| title_full | Honeycomb-like porous metallic glasses decorated by Cu nanoparticles formed by one-pot electrochemically galvanostatic etching |
| title_fullStr | Honeycomb-like porous metallic glasses decorated by Cu nanoparticles formed by one-pot electrochemically galvanostatic etching |
| title_full_unstemmed | Honeycomb-like porous metallic glasses decorated by Cu nanoparticles formed by one-pot electrochemically galvanostatic etching |
| title_short | Honeycomb-like porous metallic glasses decorated by Cu nanoparticles formed by one-pot electrochemically galvanostatic etching |
| title_sort | honeycomb like porous metallic glasses decorated by cu nanoparticles formed by one pot electrochemically galvanostatic etching |
| topic | Metallic glass Porous material Pitting corrosion Electrochemical etching Growth mechanism |
| url | http://www.sciencedirect.com/science/article/pii/S0264127520306444 |
| work_keys_str_mv | AT xuekunluo honeycomblikeporousmetallicglassesdecoratedbycunanoparticlesformedbyonepotelectrochemicallygalvanostaticetching AT mengmengmeng honeycomblikeporousmetallicglassesdecoratedbycunanoparticlesformedbyonepotelectrochemicallygalvanostaticetching AT ranli honeycomblikeporousmetallicglassesdecoratedbycunanoparticlesformedbyonepotelectrochemicallygalvanostaticetching AT zianli honeycomblikeporousmetallicglassesdecoratedbycunanoparticlesformedbyonepotelectrochemicallygalvanostaticetching AT ivanscole honeycomblikeporousmetallicglassesdecoratedbycunanoparticlesformedbyonepotelectrochemicallygalvanostaticetching AT xiaobochen honeycomblikeporousmetallicglassesdecoratedbycunanoparticlesformedbyonepotelectrochemicallygalvanostaticetching AT taozhang honeycomblikeporousmetallicglassesdecoratedbycunanoparticlesformedbyonepotelectrochemicallygalvanostaticetching |