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Superhydrophobic and corrosion-resistant siloxane-modified MgAl-LDHs coatings on magnesium alloy prepared under mild conditions

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 450-463页

作者： Wenxi Zhang Zhangzelong zhuo Dan Xu Liang wu Zhihui Xie Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province College of Chemistry and Chemical EngineeringChina West Normal UniversityNanchong 637002China College of Materials Science and Engineering/National Engineering Research Center for Magnesium Alloys Chongqing UniversityChongqing 400044China

We have developed a superhydrophobic and corrosion-resistant LDH-W/PFDTMS composite coating on the surface of Mg *** composite comprised a tungstate-intercalated(LDH-W)underlayer that was grown at low temperature(relative to hydrothermal reaction conditions)under atmospheric pressure and an outer polysiloxane layer created from a solution containing perfluorodecyltrimethoxysilane(PFDTMS)using a simple immersion *** successful intercalation of tungstate into the LDH phase and the following formation of the polysiloxane layer were confirmed through X-ray diffraction(XRD),Fourier transform infrared(FTIR)spectroscopy,and X-ray photoelectron spectroscopy(XPS).The corrosion resistance of the LDH-W film,both before and after the PFDTMS modification,was evaluated using electrochemical impedance spectroscopy(EIS),Tafel curves,and immersion *** results showed that Mg coated with LDH-W/PFDTMS exhibited significantly enhanced corrosion protection compared to the unmodified LDHW film,with no apparent signs of corrosion after exposure to 3.5wt%NaCl solution for 15 ***,the LDH-W/PFDTMS coating demonstrated superior superhydrophobicity and self-cleaning properties against water and several common beverages,as confirmed by static contact angle and water-repellency *** results offer valuable insights into preparing superhydrophobic and corrosion-resistant LDH-based composite coatings on Mg alloy surfaces under relatively mild reaction conditions.

关键词： Mg alloy corrosion coating layered double hydroxide

Additive manufacturing of Cu-AI-Mn shape memory alloy with enhanced superelasticity

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Rare Metals 2023年第12期42卷 4234-4245页

作者： Meng-Wei wu zhuo-Fan Hu bing-bing yang Ying Tao Rui-Ping Liu Chun-Mei Ma Lei Zhang Department of Materials Science and Engineering China University of Mining&Technology(Beijing)Beijing 100083China School of Materials Science and Engineering University of Science and Technology BeijingBeijing 100083China Institute for Advanced Materials and Technology University of Science and Technology BeijingBeijing 100083China Department of Mechanical Engineering University of Alaska FairbanksFairbanks 99775-5905USA

The Cu-based shape memory alloy(SMA)with highly oriented columnar crystals is an ideal candidate for the commercial application,especially the ones obtained through rapid cooling via additive manufacturing *** this work,Cu_(71)Al_(18)Mn_(11)(at%)shape memory alloy with strongtexture columnar grains was successfully prepared by selective laser melting(SLM).An L27(313)orthogonal array was designed to systematically investigate the effects of laser power,scanning speed,scanning spacing,layer thickness and their interactions on the forming quality of Cu_(71)Al_(18)Mn_(11)***_(71)Al_(18)Mn_(11)alloys with density of 7.3204 g·cm^(-3)and relative density of 99.18%were successfully prepared when the laser power,scanning speed,scanning distance and layer thickness were 240 W,1000 mm·s^(-1),0.11 mm and 25μm,the transformation onset temperature(Ms),martensite phase transformation termination temperature(Mf),austenite phase transformation onset temperature(AS)and austenite phase transformation termination temperature(Af)are-21.84,-26.04,-15.75 and-12.36℃,*** compression strength and fracture strain along the building direction(BD)were significantly superior to the scanning direction(SD),while the superelasticity of compression along the SD reached 2.50%,which was better than that of2.32%along *** mechanical property and superelasticity anisotropy due to the formation of columnar grains and texture were *** study shows that SLM is a proposed method for the preparation of Cu-Al-Mn SMAs with high superelasticity,which provides a new strategy for enhancing the shape memory alloy superelasticity.

关键词： Shape memory alloy(SMA) Selective laser melting(SLM) Columnar grains Superelasticity properties

Effects of Heat Treatment on Dimension Stability of Larch Pallet Decks

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Journal of Harbin Institute of Technology(New Series) 2013年第3期20卷 75-80页

作者： Xue-Chun yang bing Wang Jin-zhuo wu Xiao-Qi Xing Shi-Jun yang College of Engineering and Technology Northeast Forestry University

The useful life of wooden pallets is lower because of the defects in lumbers. The quality of lumber can be significantly enhanced by heat treatment. In this paper,the larch pallet decks samples were heat-treated under the conditions of different time and temperatures. The quantity of water uptake has reduced 16. 8% under the condition of 250 ℃ for 150 min. The resistance of water absorption efficiency increases 165. 34% under the condition of 175 ℃ for 90 min. The anti-shrink efficiency increases 72. 08% under the condition of 250 ℃ for 90min. The results showed that the dimension stability of larch panels can be improved by heat treatment. The condition of 250 ℃ for 180 min is the best heat treating condition to improve the dimension stability.

关键词： larch pallet heat treatment resistance of water absorption efficiency anti-shrink efficiency dimension stability

A fuse-based DC circuit breaker with vacuum interrupter enhanced by an external transverse magnetic field

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High Voltage 2024年第3期9卷 710-720页

作者： Yu Xiao Yi wu Yifei wu Fei yang Mingzhe Rong zhuo yang State Key Laboratory of Electrical Insulation and Power Equipment School of Electric EngineeringXi'an Jiaotong UniversityXi'anChina State Grid Shaanxi Electric Power Company Limited Xi'anChina

Due to the increasing power system capacity,the interruption of large fault currents has gradually become a major challenge in power *** the moment,such currents are interrupted mainly via circuit breakers based on the method of active current ***,these types of circuit breakers tend to be costly and *** possible alternative—a fuse-based circuit breaker with current commutation process enhanced by an external transverse magnetic field(ETMF)—is proposed by the *** main advantage lies in the fast current commutation achieved by an ETMF-enhanced three-stage increase of the vacuum arc *** study of the current commutation process is mainly represented by the authors,and the influencing factors of the current commutation—contact opening speed and ETMF current—are *** last,the proposed circuit breaker is verified by an experiment,whose results show that a short-circuit current of 42 kA can be interrupted within just 2 ms.

关键词： vacuum transverse interrupt

Enhanced catalytic performance for direct synthesis of dimethyl ether from syngas over a La_2O_3 modified Cu-ZrO_2/γ-Al_2O_3 hybrid catalyst

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Journal of Natural Gas Chemistry 2012年第3期21卷 360-365页

作者： zhuo Li Jianqing Li Cheng yang Jinhu wu Key Laboratory of Biofuels Qingdao Institute of Bioenergy and Bioprocess Technology Chinese Academy of Sciences Qingdao 266101 Shandong China Graduate School of Chinese Academy of Sciences Beijing 100039 China

A series of hybrid catalysts were made by physically mixing Cu-ZrO2 and γ-A12O3, for former it was modified with different loadings of La2O3 prepared by co-precipitation method. The catalysts were characterized by BET, XRD, N2O-adsorption, EXAFS, H2-TPR, NH3-TPD techniques and evaluated in the synthesis of dimethyl ether from syngas. The results show that La2O3 promoted catalysts displayed a significantly better catalytic performance compared with Cu-ZrO2#y-A12O3 catalyst in CO conversion and DME selectivity, and the optimum catalytic activity was obtained when the content of La2O3 was 12 wt%. The characterizations reveal that high copper dispersion, facile reducibility of copper particles and appropriate amount of acidic sites are responsible for the superior catalytic performance.

关键词： dimethyl ether syngas hybrid catalyst Cu-ZrO2 La2O3

Perspective on antiferroelectrics for energy storage and conversion applications

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Chinese Chemical Letters 2021年第7期32卷 2097-2107页

作者： Fangping zhuo Huimin Qiao Jiaming Zhu Shuize Wang yang Bai Xinping Mao hong-Hui wu Beijing Advanced Innovation Center for Materials Genome Engineering University of Science and Technology Beijing Department of Materials and Earth Science Technical University of Darmstadt School of Advanced Materials and Engineering Sungkyunkwan University(SKKU) Department of Mechanical Engineering The Hong Kong Polytechnic University

As a close relative of ferroelectricity,antiferroelectricity has received a recent resurgence of interest driven by technological aspirations in energy-efficient applications,such as energy storage capacitors,solid-state cooling devices,explosive energy conversion,and displacement *** prolonged efforts in this area have led to certain progress and the discovery of more than 100 antiferroelectric materials over the last 70 years,some scientific and technological issues remain ***,we provide perspectives on the development of antiferroelectrics for energy storage and conversion applications,as well as a comprehensive understanding of the structural origin of antiferroelectricity and field-induced phase transitions,followed by design strategies for new lead-free *** also envision unprecedented challenges in the development of promising antiferroelectric materials that bridge materials design and real *** research in these directions will open up new possibilities in resolving the mystery of antiferroelectricity,provide opportunities for comprehending structure-property correlation and developing antiferroelectric/ferroelectric theories,and suggest an approach to the manipulation of phase transitions for real-world applications.

关键词： Antiferroelectric materials Energy storage Energy conversion Solid-state cooling Structural origin Phase transition

化疗诱导的周围神经病变的发病机制及治疗进展

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中国药理学通报 2025年第1期41卷 18-22页

作者：陆新曲琳卓王勇关宏锏吴艳玲延边大学附属医院神经内科吉林延吉133002 延边大学药学院长白山天然药物研究教育部重点实验室吉林延吉133002

化疗诱导的周围神经病变(chemotherapy-induced peripheral neuropathy,CIPN)是指使用抗肿瘤药物导致外周神经功能紊乱而表现出来的一些症状与体征,与化疗药物呈剂量相关性。CIPN的发病机制尚未完全明确,且现有的治疗药物和治疗方法疗... 详细信息

化疗诱导的周围神经病变(chemotherapy-induced peripheral neuropathy,CIPN)是指使用抗肿瘤药物导致外周神经功能紊乱而表现出来的一些症状与体征,与化疗药物呈剂量相关性。CIPN的发病机制尚未完全明确,且现有的治疗药物和治疗方法疗效有限,因此探究CIPN的发病机制、研发新的治疗药物和治疗方法,解决未被满足的临床需求具有重要科学价值和社会意义。该文将从分子和细胞层面阐述CIPN的发病机制,以及对CIPN的治疗进展进行综述,为临床治疗提供参考,为未来研究提供方向。

关键词：化疗诱导的周围神经病变外周神经毒性化疗诱导疾病药物相关性副作用和不良反应中医药疗法中医药熏洗疗法

Tribological properties of high-entropy alloys:A review

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International Journal of Minerals,Metallurgy and Materials 2022年第3期29卷 389-403页

作者： zhuo Cheng Shuize Wang Guilin wu Junheng Gao Xusheng yang honghui wu Beijing Advanced Innovation Center for Materials Genome Engineering University of Science and Technology BeijingBeijing 100083China yangjiang Branch Guangdong Laboratory for Materials Science and Technology(Yangjiang Advanced Alloys Laboratory)Yangjiang 529500China Department of Industrial and Systems Engineering The Hong Kong Polytechnic UniversityHong KongChina

Tribology,which is the study of friction,wear,and lubrication,largely deals with the service performance of structural *** example,newly emerging high-entropy alloys(HEAs),which exhibit excellent hardness,anti-oxidation,anti-softening ability,and other prop-erties,enrich the wear-resistance alloy *** demonstrate the tribological behavior of HEAs systematically,this review first describes the basic tribological characteristics of single-,dual-,and multi-phase HEAs and HEA composites at room ***,it summarizes the strategies that improve the tribological property of *** review also discusses the tribological performance at elevated temperatures and provides a brief perspective on the future development of HEAs for tribological applications.

关键词： high-entropy alloys tribological properties room temperature elevated temperature

Multifunctional interstitial-carbon-doped FeCoNiCu high entropy alloys with excellent electromagnetic-wave absorption performance

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Journal of Materials Science & Technology 2022年第18期113卷 61-70页

作者： Jianping yang Linwen Jiang Zhonghao Liu zhuo Tang Anhua wu State Key Laboratory Base of Novel Functional Materials and Preparation Science Key Laboratory of Photoelectric Detection Materials and Devices of Zhejiang ProvinceNingbo UniversityNingbo 315211China Zhejiang Province Key Laboratory of Magnetic Materials and Application Technology CAS Key Laboratory of Magnetic Materials and DevicesNingbo Institute of Materials Technology&EngineeringChinese Academy of SciencesNingbo 315201China Shanghai Institute of Ceramics Chinese Academy of SciencesShanghai 201800China

Electromagnetic-wave absorbing(EMA)materials that have efficient absorption performances,great me-chanical properties and chemical stability are rare and yet essential for communication security and ***,flaky interstitial-carbon-doped FeCoNiCu high entropy alloys(HEAs)as novel EMA ma-terials were successfully prepared by high-energy ball-milling ***-carbon doping as a modulating approach impacted the phase forming,morphology and electromagnetic properties of Fe-CoNiCu *** matching was significantly optimized via tuning interstitial carbon *** carbon-doped FeCoNiCu HEAs with appropriate carbon contents delivered superior EMA performance compared with other HEAs EMA *** reflection loss as low as-61.1 dB in the Ku band,broad effective absorption bandwidth of 5.1 GHz was achieved for FeCoNiCuC_(0.04).Moreover,the carbon-doped FeCoNiCu HEAs exhibited excellent mechanical hardness and chemical *** work not only suggests that interstitial-carbon doping is an available approach to tuning electromagnetic properties of HEAs,but also presents carbon-doped FeCoNiCu HEAs as promising EMA materials for civilian and mili-tary due to the efficient absorption,broad bandwidth,great durability and stability.

关键词： Microwave absorption High entropy alloys FeCoNiCu Carbon-doping Impedance match