INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
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2018
·
IF 2.606
Qiao Yin,Chen Lai,Shuqun Chen,Jian Peng,Hongyi Li,Wenyuan Zhou,Peng Hu,Jinshu Wang
In this article, Ni-coated W powders were firstly prepared by a liquid-solid doping method combined with air calcination and hydrogen reduction. X-ray diffraction analysis, scanning electron microscope, transmission electron microscope, X-ray photoelectron spectroscopy and temperature programmed reduction analysis were carried out to investigate the nickel doping process in WO 3 and its influence on the reduction behaviors of tungsten oxides. It reveals that after calcinations most Ni ions would occupy the lattice sites of host W ions and decrease the interplanar spacing of WO 3 . The latter is due to the promotion of oxygen vacancy generation within WO 3 rather than the changes in ionic radius. After hydrogen reduction, the doped Ni atoms precipitate onto the surface of W particles as thin metallic coatings, whereby the size and morphology of reduced W particles are varied greatly with increasing Ni addition. The presence of Ni has also been found to lower the reduction barriers for WO 3 by using first-principles calculation. Finally, W-Ni compacts were sintered at 1500 °C in hydrogen atmosphere and the accelerated densification phenomenon of W alloy upon Ni doping is discussed.
研究领域:
材料科学
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化学工程
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产品关联
DOI
高影响因子
Journal of Physical Chemistry C
·
2022
·
IF 4.177
Fan Zhang,Shenggui Liu,Fei Wang
The nucleation and growth of Ni2+ during the jet electrodeposition process are crucial for the quality of nickel coating. Based on the vertical distribution of electrodes, we set up a three-electrode device with flow injection to further investigate the nanocluster formation of Ni2+ corresponding to traditional, vertical, and jet electrodeposition. Different nanocluster deposition models are established and combined with the results of fitting analysis based on different electrodeposition processes. Meanwhile, the nucleation and growth behaviors of Ni2+ electrodeposition with convection and charge distribution, which vary at different electrodeposition conditions, can be further achieved. Finally, the morphological structure of surface coatings via traditional, vertical, and jet electrodeposition is analyzed to prove the nucleation and growth processes. These results provide both a theoretical and experimental basis for the preparation of nickel coatings.
研究领域:
材料科学
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电化学
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产品关联
DOI
高影响因子
SURFACE ENGINEERING
·
2023
·
IF 2.8
Hao Liu,Yuelan Di,Haidou Wang,Yuncai Zhao
Metal components in microelectromechanical systems are prone to failure and corrosion due to droplet adhesion in wet environments. Several multi-level structures on the micro-nano scale may induce effective superhydrophobicity to prevent such adhesion. This study proposes a hybrid manufacturing process to generate ‘frame-cone’ textures on the surfaces of metals by combining ultra-fast laser etching and electrodeposition. Periodically distributed frame recesses and pits were coated with nano-submicron Ni coatings with conical shapes, and the pit depth and cone height were controlled by tuning the laser scanning time and current density, respectively. The surface adhesion force was reduced to 22.8 μN, and the static contact angle was maintained at 156.7° using the hybrid process, while the adhesion forces of laser etched samples with the same depth were 164.7 μN. The multi-level ‘frame-cone’ structure stored more air and reduced the contact areas between the bottoms of the pits and droplets. The hybrid process of ultra-fast laser etching and electrodeposition aided in improving the superhydrophobicity, with less damage to the substrate.
研究领域:
材料科学
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表面工程
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DOI
高影响因子
CELLULOSE
·
2018
·Vol. 25
·期 8
·4859-4870
·
IF 3.809
Zhang Chuanjie,Zhou Guangsheng,Rao Weida,Fan Lingling,Xu Weilin,Xu Jie
Abstract
Conductive fabrics have achieved significant attention in the field of wearable electronics. Herein, a novel and simple method was developed to fabricate nickel-coated cotton fabrics. Triazine groups were bonded onto the cotton fabrics through treating by cyanuric chloride solution to absorb silver ions and to form a catalytical layer on the fabrics, which could successfully initiate the subsequent electroless deposition (ELD) of nickel (Ni). The cyanuric chloride concentration and ELD time were optimized. Compared to conventional methods, superior conductivity as well as good adhesion was obtained because of the stable affinity of triazine groups to metals. The surface conductivity of the as-prepared Ni-coated fabrics was as high as 21.82 S cm −1 . The strain sensing properties of the Ni-coated fabrics were studied, demonstrating high sensitivity and rapid response. These attractive properties of the Ni-coated cotton fabrics suggest that the proposed method is expected to be used in the fabrication of wearable strain sensors. Graphical Abstract
研究领域:
材料科学
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纺织工程
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电子工程
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DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE
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2017
·Vol. 53
·期 5
·3744-3755
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IF 2.599
Xie Zhi-Hui,Shan Shiyao
Self-healing coating based on nanocontainers (NCs) has been emerging as a great strategy to improve the anticorrosion ability of susceptible metal substrate. However, all the research referred to such smart coating to date is focus on organic coating instead of metallic coating. To fill this gap, 2-mercaptobenzothiazole (MBT) loaded porous hollow SiO 2 NCs are synthesized and incorporated successfully into an electroless Ni coating on Mg alloy in this work. The surface morphologies and the loading properties of the NCs are characterized by scanning electron microscopy, transmission electron microscopy, ultraviolet–visible spectrophotometer, X-ray photoelectron spectroscopy, and Fourier transform infrared spectroscopy. The favorable performance of Ni coating after incorporation of NCs is demonstrated by potentiodynamic polarization (PDP), linear polarization, and electrochemical impedance spectroscopy. Based on the results of PDP test, the corrosion current density ( i
c ) of the MBT@NCs (MNCs)-engineered Ni coating reduces slightly from 6.4 to 5.4 μA cm −2 after immersion in a corrosive media, while the value for MNCs-free coating increases by almost a factor of ten from 6.8 to 67.4 μA cm −2 . Our findings demonstrate the possibility of using corrosion inhibitors loaded NCs to enhance the corrosion resistance of a metallic coating and give new perspectives for functionalization of a metallic coating with nanomaterials.
研究领域:
材料科学
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腐蚀与防护
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纳米技术
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产品关联
DOI
高影响因子
SURFACE & COATINGS TECHNOLOGY
·
2024
·
IF 5.3
Guangyin Liu,Yuhui Zhang,Chaofan Ma,Qin Tang,Hanbing Li,Shiqi Chen,Jun Shen
The gallium (Ga) base liquid metal (LM) with high thermal conductivity and deformability is applied widely in thermal management in electrical systems. However, Ga readily reacts with Cu to form intermetallic compounds (IMCs), which can cause failure in electronic devices. Herein, the thermal interface material (TIM) with Ga and diamond is prepared to analyze the reaction behavior of TIM and Cu/Ni-plated Cu under an aging test at 125 °C. The results show that Ga reacts with Cu substrate and forms CuGa 2 bulk. Moreover, Ni coating can inhibit the corrosion of Ga and Cu. However, the as-volcano IMC structures were generated, also. The thermal resistance increased from 2.24 mm 2 ·K·W −1 to 14.47 mm 2 ·K·W −1 from initial time to 200 h. The interfacial corrosion behavior between TIM and Cu substrate is studied by first-principles molecular dynamics simulation. The diffusion coefficient in the z direction of Cu is 0.04 × 10 −5 cm 2 /s. In a word, the work could provide the guidelines for the further design of high-performance corrosion resistance in the region where Ga was used for thermal management on electronic products.
研究领域:
材料科学
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热管理
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电子器件
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DOI
高影响因子
Surface Topography-Metrology and Properties
·
2022
·Vol. 10
·期 4
·045004
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IF 2.185
Fuliang Ma,Luli Shen,Zhixiang Zeng
In recent years, the development of the slippery liquid-infused porous surface (SLIPS) for metal corrosion protection has attracted extensive attention. The current construction method of SLIPS micro-nano structure has certain limitations. In this paper, a porous structure was firstly constructed by electroplating nickel based on the hydrogen bubble template method, and then the porous structure was modified by 1H, 1H, 2H, 2H-perfluorodecyltriethoxysilane (PFDS) to obtain the superhydrophobic coating, and finally, The SLIPS coating was obtained by infusing perfluoropolyether (PFPE) on the basis of superhydrophobic coating. After immersed in 3.5 wt% NaCl solution for 4 weeks, the WCA of SLIPS constructed in this paper only decreased from 121° to 114°. Importantly, the corrosion resistance of SLIPS was enhanced by one and three orders of magnitude compared with SHC and Cu substrate. In addition, it was worth mentioning that the SLIPS also exhibited a superior self-healing property even after several scratching healing cycles. The simple method of building porous structures in this paper will promote the further development of the SLIPS coating and its application in engineering.
研究领域:
材料科学
·
腐蚀与防护
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DOI
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2019
·
IF 3.131
Enyang Liu,Xiaoli Yin,Jinhui Hu,Sirong Yu,Yan Zhao,Wei Xiong
Many attentions have been attracted to prepare superhydrophobic coatings on the metal surfaces for their prominent properties, especially the self-cleaning and anti-corrosion properties. In this work, a facile electrodeposition method was applied to fabricate hierarchical Cu-Ni coating on the 316 L stainless steel , and the followed myristic acid modification was used to lower the surface energy. The water droplet would remain spherical on this coating, and measured water contact angle and sliding angle were 161.27° and 7.8°, respectively. The contaminants on the coating surface could be easily carried away by the closed water droplets. In addition, the coating could effectively hinder the deposition of salt solution. Besides, the coating could endure long-term acid solution immersion and natural placement. Moreover, it was verified that this superhydrophobic Cu-Ni coating formed a robust barrier to block the transmission of chlorine ions , thus corrosion damage to steel surface could be effectively relieved. This superhydrophobic Cu-Ni coating provides a novel strategy and promising applications for preventing various metal surfaces from being contaminated and corroded.
研究领域:
材料科学
·
表面工程
·
腐蚀与防护
✓ 已验证
产品关联
DOI
高影响因子
International Journal of Bioprinting
·
2021
·
IF 6.638
Guibin Lou,Ya Chen,Junwei Xu,Yingjuan Qian,Haixia Cheng,Zhen Wei,Youwen Yang,Lida Shen,Cijun Shuai
Graphene oxide (GO) is recognized as a promising antibacterial material that is expected to be used to prepare a new generation of high-efficiency antibacterial coatings. The propensity of GO to agglomeration makes it difficult to apply it effectively. A new method of preparing GO-loaded nickel (GNC) with excellent antibacterial property is proposed in this paper. In this work, GNC was prepared on a titanium sheet by magnetic field-assisted scanning jet electrodeposition. The massive introduction of GO on the coating was proven by energy disperse spectroscopy and Raman spectroscopy. The antibacterial performance of GNC was proven by agar plate assessment and cell living/dead staining. The detection of intracellular reactive oxygen species (ROS) and the concentration of nickel ions, indicate that the antibacterial property of GNC are not entirely derived from the nickel ions released by the coating and the intracellular ROS induced by nickel ions, but rather are due to the synergistic effect of nickel ions and GO.
研究领域:
材料科学
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生物学
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DOI
PubMed
高影响因子
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
·
2025
·
IF 2
Lu Shuai,Huang Kang,Sun Xiaowei,Xue Wei,Zhang Zequn,Zhang Bowei,Wu Junsheng
The stability of the gas film in the cathode plasma electrolytic deposition (CPED) process is essential for producing high-quality coatings. In this work, cationic cetyltrimethylammonium bromide (CTAB), anionic sodium dodecyl sulfate (SDS), and nonionic polyvinylpyrrolidone (PVP) surfactants were added to the electrolyte to regulate the gas film. Force balance analysis of individual bubbles demonstrated that surfactants effectively reduced surface tension, resulting in thinner gas films and lower energy consumption. With 3 g/L of CTAB, SDS, and PVP, energy consumption was reduced by 67.21%, 60.97%, and 73.58%, respectively. Based on the polarity and electrostatic interactions of the surfactants, the mechanisms by which the three surfactants affect gas film uniformity and the deposition process were revealed. CTAB reduced gas film uniformity due to the attraction of opposite charges, leading to cross-sectional defects. In contrast, SDS improved gas film uniformity through the repulsion of negative charges, reducing coating roughness and increased thickness. PVP exhibited intermediate effects, producing dense coatings with slightly lower thickness. This work provides a new perspective for regulating the CPED process and lays the groundwork for exploring alternative methods to stabilize CPED operations.
研究领域:
材料科学
·
化学工程
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DOI
高影响因子
ADVANCED ENGINEERING MATERIALS
·
2020
·Vol. 23
·期 1
·2000913
·
IF 3.217
Enyang Liu,Liyuan Wang,Xiaoli Yin,Jinhui Hu,Sirong Yu,Yan Zhao,Wei Xiong
Herein, a superhydrophobic Ni coating is prepared on 316L stainless steel by electrodeposition and low energy modification with tetradecanoic acid. After 20 min of electrodeposition with a current density of 8 A dm −2 , a Ni coating with micro–nano dual-scale structures is obtained. The coating becomes superhydrophobic with a water contact angle (WCA) of 160.4° and a sliding angle (SA) of 8.3° after being immersed in the tetradecanoic acid solution (5 g L −1 , 12 h). A two-level structure model is established for explaining the effect of morphology on the wettability of the coating. The WCA value of the superhydrophobic Ni coating retains above 150° after being exposed in outdoor environment for 6 months and in flowing environment for 7 days. In addition, the coating still shows superhydrophobicity after 9 times of mechanical abrasion test, 12 h of acid soaking (pH = 1), and 16 h of heat treatment in 200 °C. Moreover, the coating improves the corrosion resistance of the steel substrate. This superhydrophobic Ni coating provides a simple method to prevent stainless steel from corrosion. And the theoretical calculation of the two-level model can provide an innovative strategy for designing the structure of the superhydrophobic coating.
研究领域:
材料科学
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表面工程
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产品关联
DOI
高影响因子
Materials
·
2025
·Vol. 18
·期 3
·664
·
IF 3.2
Zhuofang Huang,Anmin Li,Wendi Zhou,Jinjin Li,Jinkai Zhang
The effects of red mud on the microstructures and high-temperature tensile properties of the ZL109 aluminum alloy have been investigated. Red mud/ZL109-based composite materials with added red mud (a major byproduct of the aluminum industry), which has been coated with nickel by chemical deposition, have been prepared through gravity casting. The results show that the addition of red mud promotes the alloy’s microstructure and helps to uniformly distribute the eutectic silicon. It also increases the content of heat-resistant phases, such as the Q-Al5Cu2Mg8Si6and γ-Al7Cu4Ni phases. These changes significantly enhance the alloy’s high-temperature tensile properties. The alloy with 1% (wt.%) red mud exhibits the best tensile strength at both room temperature and 350 °C, reaching 295.4 MPa and 143.3 MPa, respectively. The alloy with 1.5% (wt.%) red mud demonstrates excellent performance at 400 °C, achieving a tensile strength of 86.2 MPa through the cut-through method and Orowan mechanism. As a reinforcing material, red mud not only improves the high-temperature resistance of the aluminum alloy but also provides a way to recycle industrial waste. This study offers a new way to address the red mud waste problem and helps develop high-performance, heat-resistant aluminum alloys. It shows the potential of these alloys in high-temperature applications.
研究领域:
材料科学
·
冶金工程
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产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）