JOURNAL OF MATERIALS SCIENCE
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2023
·Vol. 58
·期 22
·9382-9393
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IF 4.5
Wang Bingying,Zhang Keke,Gao Yijie,Liu Peng,Liu Bo,Zhang Zhansheng
The trend toward miniaturized and highly integrated chip packaging has created a pressing need for lead-free solders with high strength, toughness, and conductivity. In this paper, we designed a scheme of Al 2 O 3 -modified nanomaterial-reinforced low silver Sn1.0Ag0.5Cu (SAC105) solder matrix. To begin with, a novel amorphous carbon and nickel core–shell structure plating modified on Al 2 O 3 (C/Ni/Al 2 O 3 ) were prepared by the electroless plating method. Then, the nano-C/Ni/Al 2 O 3 particle as reinforcement phase was mixed into the matrix solder alloy by ultrasonic vibration stirring. Finally, the morphology and relationship between coated carbon, deposited nickel and original solder interface were analyzed. The microstructure and main properties of the modified solders were also investigated. The experimental results suggested that amorphous carbon and nickel film were prepared on the surface of Al 2 O 3 by electroless plating method. The outer layer of nano-Al 2 O 3 was coated with non-uniform thickness of nickel and carbon coatings. The mass percentage of amorphous carbon was about 3.50%. Adding C/Ni/Al 2 O 3 (0–0.5%) into the SAC105 solder matrix resulted in a gradual increase in conductivity and wettability. The strength and toughness of the modified solder alloy improved as well with the adjunction of reinforced phase. The tensile fracture surface exhibited from a mixture of ductile and brittle, characterized by dimples and cleavage surface, to a purely ductile mode consisting mainly of dimples.
研究领域:
材料科学
·
电子工程
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
·
2021
·
IF 5.816
Anyin Chen,Liang Fu,Wenjun Xiang,Wei Wei,Dan Liu,Changlu Liu
It is essential to search highly active, steady and cheap non-noble electrocatalyst for hydrogen evolution reaction (HER). At present, nickel phosphides are extensively used in electrochemical hydrogen evolution due to its excellent stability and activity. Hence, we report a facile, effective and feasible strategy to synthesis of Ni 5 P 4 nanosheets/nanoparticles structure on carbon cloth, which was fabricated by electroless nickel plating on carbon cloth followed via straightforward thermal phosphidation treatment with NaH 2 PO 2 as phosphorus source. The as-prepared CC@Ni–P electrocatalyst exhibits HER activity with low overpotentials (93 mV vs. RHE) to attain current density 10 mA/cm 2 as well as small Tafel slope (58.2 mV/dec), which outperforms most nickel phosphides electrocatalysts. The excellent HER performance can be ascribed to the large electrochemically active surface area, and phosphorus-rich Ni 5 P 4 phase can supply further bridges sites of Ni and P. Significantly, as-prepared CC@Ni–P catalyst electrode exhibits no apparent HER activity decay after continuous stability test. Beyond that, the approach can be readily used to fabricate large size (5 × 5 cm) nickel phosphide electrocatalyst with excellent HER performance, which may be conducive to the proton exchange membrane (PEM) water electrolyser applications in future. This work opens an effective way to construct excellent performance transition-metal phosphides for HER.
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
Coatings
·
2023
·Vol. 13
·期 9
·1531
·
IF 3.4
Jie Pang,Wenfeng Qin,Wentao You,Mian Zhong,Qing’an Meng
Ice accumulation on the surface of aircraft is a serious threat to flight safety and a fatal factor causing air accidents. However, traditional aircraft deicing methods no longer meet the requirements of safe flight due to changes in aircraft structural materials. In recent years, the application of carbon fiber-reinforced polymer (CFRP) materials in the aviation structure industry has increased. In this study, we demonstrate an economical, easy-to-prepare, and pollution-free approach to deice an aircraft through induction heating. The nickel-coated carbon fiber-reinforced polymer used as the induction heater for aircraft deicing is obtained by electroless nickel plating on the surface of the CFRP. The result shows that it takes just 110 s to achieve a temperature of 205 °C on the nickel-plated CFRP when the input voltage is 30 V, as well as melting the ice layer with a thickness of 30 mm, while the temperature of this material can reach up to 81 °C by electric heating when the input voltage is 1.5 V. Meanwhile, the nickel-plated CFRP exhibits good repeatability during the induction heating. Based on the excellent electrothermal properties, the nickel-plated CFRP polymer shows a prominent deicing ability, which provides a promising strategy for the deicing of aircraft.
研究领域:
材料科学
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航空航天工程
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产品关联
DOI
高影响因子
FIBERS AND POLYMERS
·
2022
·Vol. 23
·期 5
·1309-1317
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IF 2.347
Liu Wenya,Sun Di,Ma Haodong,Chen Zhenming,Gui Chengmei,Huang Junjun
Silver-printed terylene is presented to fabricate anti-electromagnetic radiation Maternity Dress (AMD) with superior shielding effectiveness, but the use of noble metal as electromagnetic interference shielding materials enhances cost of raw material and restricts its application. In this study, a facile process combined with electroless deposition and hydrophobic treatment to fabricate self-cleaning radiation protection cotton for AMD was established. The active groups on the plant fiber surface could absorb Sn 2+ and Pd 2+ through coordination effect, acting as catalytic center, which can catalyze the reduction of Ni 2+ in the plating solution. Ni particle deposited on the its surface with deposited amount of 32 %. The fabricated material exhibited an shielding effectiveness of 52.5 dB and it meet AMD criteria. Owing to the cooperation of the low surface energy and rough structure of precipitation, the Ni-plated cotton modified with (3-Mercaptopropyl) trimethoxysilane exhibited remarkable hydrophobicity with water contact angle up to 112.8° and excellent self-cleaning property.
研究领域:
材料科学
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纺织工程
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DOI
高影响因子
Journal of Industrial Textiles
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2022
·
IF 2.926
Chengmei Gui,Di Sun,Wenya Liu,Haodong Ma,Zhenming Chen,Peng Li,Junjun Huang
Multi-ion fabrics (especially silver ion fabrics) have special advantages as electromagnetic radiation, but the use of noble metals enhances its cost. Electroless nickel plating (EP-Ni) has great potential application in fabricating low-cost metallized material. Here, EP-Ni on pure cotton surface to fabricate radiation protection suits for pregnant woman was established to replace traditional protection suits with silver film. The active groups on the cotton/polyester blend fiber surface could absorb tin and palladium ions, acting as catalytic centers, which can catalyze the reduction of Ni2+ in the plating solution. Ni particle with (111) crystal plane preferential oriented crystal structure deposited on cotton surface with a coarse microstructure. The Ni deposited amount is about 19%. The fabricated material exhibited a shielding effectiveness of 29.5 dB. Studies also shown that bending has no negative effect on crystallinity and electrical property. But more bending times could lead to crack, which would decline electromagnetic shielding performance by 24%.
研究领域:
材料科学
·
医学工程
✓ 已验证
DOI
高影响因子
CHEMICAL ENGINEERING RESEARCH & DESIGN
·
2025
·
IF 3.9
Shuang He,Keyi Ma,Hao Zhang,Guoliang Zhang,Longchao Yang,Jinhao Zhou,Wenxuan Wu,De Sun,Bingbing Li,Dongmin Yue
Solar-driven interfacial evaporation technology has attracted significant attention because of its ability to concentrate thermal energy on the evaporation surface to minimize the heat loss. As a key component in the process of interfacial evaporation, the structure of the photothermal conversion membrane is one of the important factors influencing interfacial evaporation performance. Herein, a hierarchical nickel black membrane (H-Ni) was prepared by electroless plating for solar-driven interfacial evaporation. A layer of triangular nickel black particles was grown on the surface of the Ni foam skeleton, which enhances the absorption (93.87 %) through the light-trapping effect. The evaporation rate of H-Ni membrane achieved to 1.27 kg m −2 h −1 with a solar-vapor conversion efficiency of 80.22 % under 1 kW m −2 solar irradiation. This work provides a novel design of a hierarchical structure via a convenient way, which is conductive to promoting the widespread application of solar water treatment technology.
研究领域:
材料科学
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能源技术
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环境科学
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产品关联
DOI
高影响因子
SURFACE & COATINGS TECHNOLOGY
·
2024
·
IF 5.3
Zhi-Hui Xie,Dan Xu,Ya Shu,Qiwen Yong,Liang Wu,Gang Yu
Electroless amorphous nickel (Ni)–phosphorus (P) (Ni P) alloy coatings were successfully achieved on magnesium alloys using an environmentally friendly and facile Mg(OH) 2 conversion film, followed by AgNO 3 activation. The success of the coating was confirmed through scanning electron microscopy, energy dispersive spectroscopy, and X-ray diffraction characterizations. Electrochemical tests showed that the charge transfer resistance of the newly developed electroless Ni P plating coating, which had a horizontally stacked Mg(OH) 2 nanosheet primer (Mg(OH) 2 /pH 14/ENP), was significantly higher than that with a vertically grown Mg(OH) 2 nanosheet underlayer (Mg(OH) 2 /pH 10/ENP) or that with a phosphate pretreatment (ENP). The measured corrosion current density of the Mg(OH) 2 /pH 14/ENP coating was 1.08 μA cm −2 , one magnitude smaller than that of the ENP coating. Notably, the ENP coating exhibited severe galvanic corrosion , peeling off after only 24 h of the neutral salt spray (NSS) test. In contrast, the Mg(OH) 2 /pH 14/ENP surface showed no visible corrosion cavities or signs of galvanic corrosion even after 120 h of the NSS test or 21 d of exposure to a NaCl solution. These results indicate that the as-prepared coating possesses a strong inhibition capability against galvanic corrosion between the Ni layer and the magnesium alloy, providing long-lasting corrosion protection .
研究领域:
材料科学
·
腐蚀与防护
✓ 已验证
DOI
高影响因子
MATERIALS & DESIGN
·
2021
·
IF 7.991
Qia Zhang,Ling Kang,JianXiong Zou,Chun Huang,Zhiwei Gong,Jian Zhang
Sustainable and low-cost cellulose-based metallisation is the prerequisite for wearable and disposable electronics fabrication. In this paper, to realize the simplified, low-cost and high efficient metallisation, a new method had been proposed without both the noble metal activators and the corrosive chemicals. The modified electroless plating processes had been employed in activation and deposition procedure. The nickel ions were first physiadsorbed on the cellulose paper (CP) fibers and then reduced into clusters by reducing agent which can act as the seeds to initiate the electroless plating process. The gold galvanic displacement was conducted further to modify the nickel surface. Via these processes, the cellulose paper was metallised with Ni-P and Au/Ni-P successfully. The morphological and microstructural properties of the resulted Ni-P/CP and Au/Ni-P/CP hybrids were evaluated. The Ni-P/CP composites had a low surface resistance below 0.5 Ω sq -1 while the Au/Ni-P/CP composites are below 0.1 Ω sq -1 . The relationship between the mechanical and electrical properties with the plating parameters is discussed. The results indicated that Au/Ni-P/CP had good electrical conductivity and mechanical flexibility. Finally, the application demonstration for supercapacitor with the modified metallisation method was exhibited. This work offers a facile and non-toxic path to develop high-performance metallisation for functional cellulose-based materials.
研究领域:
材料科学
·
能源技术
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2018
·Vol. 29
·期 22
·19200-19206
·
IF 2.324
Zheng Guanghong,Jianhua Ren,Guo Ronghui
Kevlar fabric was pretreated with aminopropyltrimethoxysilane (APTMS) through supercritical carbon dioxide (scCO 2 ) process before electroless nickel plating. APTMS pretreated Kevlar fibers were characterized by element distribution and contact angle. Deposition rate, deposit weight, surface morphology, crystal structure, surface resistance, electromagnetic interference shielding effectiveness (SE) and magnetic properties of electroless nickel plated Kevlar fabric were investigated. The results show that APTMS is evenly covered on Kevlar fibers after pretreatment. Nickel coatings on the Kevlar fibers are dense and uniform after nickel plating. Surface resistance and electromagnetic interference SE of the nickel plated Kevlar fabric via scCO 2 processes arrives at 1.33 Ω/sq and 13–19 dB at frequencies ranging from 2 to 18 GHz. The saturation magnetization of Ni coated Kevlar fabric reaches 207.52 memu/g.
研究领域:
材料科学
·
表面工程
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）