Nanoconical active structures prepared by anodization and deoxidation of molybdenum foil and their activity origin

Chen, Xingyu; Zhang, Pengfei; Liu, Yongchang; Wang, Zumin; Huang, Yuan

doi:10.1016/j.jallcom.2020.156896

Cited by 6 publications

(2 citation statements)

References 43 publications

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“…After the nano-treatment process, nanostructures can be formed on the W surface. The existence of nanostructures can improve the surface activity of the substrate [23], which is beneficial to W/Cu bonding. Figure 3 shows the cross-sectional SEM of a nanostructure before and after the reduction annealing process.…”

Section: Characterization Of After Surface Nano-treatmentmentioning

confidence: 99%

The Improvement of Bonding Strength of W/Cu Joints via Nano-Treatment of the W Surface

Chen

et al. 2021

Metals

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W/Cu joining is key for the fabrication of plasma-facing compounds of fusion reactors. In this work, W and Cu are joined through three steps: (1) hydrothermal treatment and reduction annealing (i.e., nano-treatment), (2) Cu plating and annealing in a pure H2 atmosphere, and (3) W/Cu bonding at 980 °C for 3 h. After nano-treatment, nanosheets structure can be found on the W substrate surface. The tensile strength of the W/Cu joint prepared via nano-treatment reaches as high as approximately 93 MPa, which increases by about 60% compared with the one without nano-treatment. The microhardness curves exhibited continuous variations along the W/Cu interface. The TEM images show that the W/Cu interface is compact without any cracks or voids. This work may also be applied for enhancing bonding strength in other immiscible materials.

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Section: Characterization Of After Surface Nano-treatmentmentioning

confidence: 99%

The Improvement of Bonding Strength of W/Cu Joints via Nano-Treatment of the W Surface

Chen

et al. 2021

Metals

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“…Nanostructured anodic zirconia is also utilized as a photocatalyst [34] or as a substrate for Surface Enhanced Raman Spectroscopy (SERS) [35]. Additionally, other metals, like Hf [36], Mo [37], Nb [38], Sn [39], Ta [40], W [41,42], Zn [43,44], gain much attention as starting materials for anodizing.…”

Section: Introductionmentioning

confidence: 99%

Incorporation of Ions into Nanostructured Anodic Oxides—Mechanism and Functionalities

2021

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Anodic oxidation of metals leads to the formation of ordered nanoporous or nanotubular oxide layers that contribute to numerous existing and emerging applications. However, there are still numerous fundamental aspects of anodizing that have to be well understood and require deeper understanding. Anodization of metals is accompanied by the inevitable phenomenon of anion incorporation, which is discussed in detail in this review. Additionally, the influence of anion incorporation into anodic alumina and its impact on various properties is elaborated. The literature reports on the impact of the incorporated electrolyte anions on photoluminescence, galvanoluminescence and refractive index of anodic alumina are analyzed. Additionally, the influence of the type and amount of the incorporated anions on the chemical properties of anodic alumina, based on the literature data, was also shown to be important. The role of fluoride anions in d-electronic metal anodizing is shown to be important in the formation of nanostructured morphology. Additionally, the impact of incorporated anionic species, such as ruthenites, and their influence on anodic oxides formation, such as titania, reveals how the phenomenon of anion incorporation can be beneficial.

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Single-step nano-engineering of multiple micro-rough metals via anodization

et al. 2022

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Nanoconical active structures prepared by anodization and deoxidation of molybdenum foil and their activity origin

Cited by 6 publications

References 43 publications

The Improvement of Bonding Strength of W/Cu Joints via Nano-Treatment of the W Surface

The Improvement of Bonding Strength of W/Cu Joints via Nano-Treatment of the W Surface

Incorporation of Ions into Nanostructured Anodic Oxides—Mechanism and Functionalities

Single-step nano-engineering of multiple micro-rough metals via anodization

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