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sTRENGThENING CAsT IRON MATRIX BY ALLOYINGELEMENTs WITh POsITIVE AND NEGATIVEsEGREGATION

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Acta Metallurgica sinica(English Letters) 1997年第4期10卷 329-332页

作者： Fan, Z.K. Wang, Y.Q. Liang, s.h. huang, h.s. Xi'an Univ of Technology Xi'an China

The combinational use of alloying elements with positive and negative segregation has been shown to be very effective in strengthening the matrix of cast iron. Negative segregation alloying elements, Cu and si, make the inner parts of dendritic austenites and eutectic cells get good hardenability. On the contrary, positive segregation alloying elements Cr and Mn make the outer parts of dendrites.h.ve higher microhardness. Appropriate combination of the above two types of alloying elements can produce a uniform microhardness and high strength in gray cast irons.

关键词： Cast iron Chromium Copper hardness Manganese segregation (metallography) silicon strengthening (metal)

A mild, configurable, flexible CoNi-LDh（v）/Zn battery based on h-vacancy-induced reversible Zn2+ intercalation

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Journal of Energy Chemistry 2025年第1期100卷 498-508页

作者： Xinyue cheng Dingsheng Wu hao Gao Qingqing Wang Pengfei Lv sam s.Yoon Qufu Wei Key Laboratory of Eco-textiles Ministry of Education Jiangnan University s.h.ol of Mechanical Engineering Korea University

Flexible Zn-based batteries.h.ve attracted increasing research interest as essential components of wearable energy storage ***,the advancement of flexible aqueous Zn-based batteries based on Co-Ni layered double hydroxide （CoNi-LDh） as the cathode material is.h.mpered by their poor cycling stability and the corrosiveness of alkaline ***,CoNi-LDh nanosheets enriched with h vacancies (CoNi-LDh（v）) were constructed on a flexible carbon cloth （CC） substrate via electrochemical deposition and *** Zn-based battery comprising CoNi-LDh（v）@CC as the cathode exhibited highly reversible conversion reactions and stable operation in 3 M ZnsO4electrolyte （ph=4）.The battery delivered an excellent specific capacity (225 mA h g-1,0.26 mA h cm-2),acceptable cycling stability（53.9%,900 cycles）,and high dis.h.rging *** abundant h vacancies served as active sites for the reversible intercalation of Zn2+and the extravasation of NO3-generated channels and space for Zn2+transport and storage,together enabling an excellent Zn2+storage ***,a sandwich-structured solid-state CoNi-LDh（v）@CC//Zn@CC battery was fabricated and was found to exhibit a noteworthy electrochemical performance and mechanical *** a proof of concept,the unencapsulated battery powered a digital watch under various deformation conditions and operated stably for 80 ***,the flexible battery displayed outstanding customizability,maintaining an open-circuit voltage of 1.42 V even after being cut *** proposed engineering strategy contributes to the realization of textiles with truly wearable energy-storage devices.

关键词： CoNi/Zn battery h vacancies Mild aqueous electrolyte Tailorable battery Wearable energy storage device

Metabolic reprogramming: a new option for the treatment of spinal cord injury

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Neural Regeneration Research 2025年第4期20卷 1042-1057页

作者： Jiangjie chen Jinyang chen Chao Yu Kaishun Xia Biao Yang Ronghao Wang Yi Li Kesi shi Yuang Zhang haibin Xu Xuesong Zhang Jingkai Wang Qixin chen chengzhen Liang Department of Orthopedics The Second Affiliated Hospital of Zhejiang University School of MedicineHangzhouZhejiang ProvinceChina Orthopedics Research Institute of Zhejiang University Zhejiang UniversityHangzhouZhejiang ProvinceChina Key Laboratory of Motor system Disease Research and Precision Therapy of Zhejiang Province HangzhouZhejiang ProvinceChina Clinical Research Center of Motor system Disease of Zhejiang Province HangzhouZhejiang ProvinceChina Qiandongnan Prefecture People’s.h.spital KailiGuizhou ProvinceChina Department of Orthopedics Fourth Medical CenterChinese PLA General HospitalBeijingChina

spinal cord injuries impose a notably economic burden on society,mainly because of the severe after-effects they *** the ongoing development of various therapies for spinal cord injuries,their effectiveness remains ***,a deeper understanding of metabolism has opened up a new therapeutic opportunity in the form of metabolic *** this review,we explore the metabolic changes that occur during spinal cord injuries,their consequences,and the therapeutic tools available for metabolic *** spinal cord metabolism is characterized by independent cellular metabolism and intercellular metabolic ***,spinal cord injury results in metabolic disorders that include disturbances in glucose metabolism,lipid metabolism,and mitochondrial *** metabolic disturbances lead to corresponding pathological changes,including the failure of axonal regeneration,the accumulation of scarring,and the activation of *** rescue spinal cord injury at the metabolic level,potential metabolic reprogramming approaches.h.ve emerged,including replenishing metabolic substrates,reconstituting metabolic couplings,and targeting mitochondrial therapies to alter cell *** available evidence suggests that metabolic reprogramming holds great promise as a next-generation approach for the treatment of spinal cord *** further advance the metabolic treatment of the spinal cord injury,future efforts should focus on a deeper understanding of neurometabolism,the development of more advanced metabolomics technologies,and the design of highly effective metabolic interventions.

关键词： axons glycolysis metabolic reprogramming metabolism mitochondria neural regeneration neuroprotection oxidative phos.h.rylation spinal cord injury therapy

Co-production of hydrogen, oxygen, and electricity via an integrated solar-driven system with decoupled water electrolyzer and Na-Zn ion battery

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Journal of Energy Chemistry 2025年第1期100卷 621-627页

作者： Fei Lv Longjie Liu Jiazhe Wu Pengfei Wang Lixia Pan Dengwei Jing Yubin chen International Research Center for Renewable Energy State Key Laboratory of Multiphase Flow in Power Engineering Xi'an Jiaotong University

Combining water electrolysis and rechargeable battery technologies into a single system holds great promise for the co-production of hydrogen （h2） and ***,the design and development of such systems is still in its ***,an integrated hydrogen-oxygen （O2）-electricity co-production system featuring a bipolar membrane-assisted decoupled electrolyzer and a Na-Zn ion battery was established with sodium nickelhexacyanoferrate （NaNihCF） and Zn2+/Zn as dual redox *** decoupled electrolyzer enables to produce h2and O2in different time and space with almost 100%Faradaic efficiency at 100 mA ***,the charged NaNihCF and Zn electrodes after the electrolysis processes formed a Na-Zn ion battery,which can generate electricity with an average cell voltage of 1.75 V at 10 m A *** connecting si photovoltaics with the modular electrochemical device,a well-matched solar driven system was built to convert the intermittent solar energy into hydrogen and electric energy with a solar to hydrogen-electricity efficiency of 16.7%,demonstrating the flexible storage and conversion of renewables.

关键词： hydrogen Electricity Decoupled water electrolyzer Na-Zn ion battery solar energy

CORROsION REsIsTANCE OF hOT DIP GALVANIZED sTEEL PRETREATED WITh BIs-FUNCTIONAL sILANEs MODIFIED WITh NANOALUMINA

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Acta Metallurgica sinica(English Letters) 2008年第4期21卷 245-252页

作者： F.J. shan C.s. Liu s.h. Wang G.C. Qi Key Laboratory for Anisotropy and Texture of Materials Ministry of Education Northeastern University Shenyang 110004 China Material ＆ Chemical Engineering College Liaoning University of Technology Jinzhou 121001 China

The corrosion behavior of hot dip galvanized steel pretrvated with bis-[triethoxysilylpropyl] tetrasulfide （BTEsPT） modified with alumina particles was studied. The corrosion resistance of the passiving films was evaluated by Tafel polarization curve and electrochemical impedance spectroscopy. The films formed on the galvanized steel substrate were characterized by Fourier transform infrared spectroscopy and energy dispersive X-ray spectrometry. The surface morphology of the treated hot dip galvanized steel samples was observed by Field Emission scanning Electron Microscope. The results show that the pretrvatments on the basis of silane films modified with nanoalumina particles.h.ve reduced both anodic and cathodic current densities, and increased total impedance in the measured frequency, consequently, improving corrosion protection for hot dip galvanized steel during immersion in NaCl solutions compared to chromate films and silane films.

关键词： Bis-sulfur silane Nanoalumina Corrosion protection Characterization hot dip galvanised steel

AMINO-TRIs-(METhYLENEPhOs.h.NIC ACID)LAYERs ADsORPTION ON AA6061 ALUMINUM ALLOY

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Acta Metallurgica sinica(English Letters) 2008年第5期21卷 355-361页

作者： s.h. Wang C.s. Liu F.J. shan G.C. Qi Key Laboratory for Anisotropy and Texture of Materials Ministry of Education Northeastern University Shenyang 110004 China Material＆ Chemical Engineering College Liaoning University of Technology Jinzhou 121001 China

The amino-tri-（methylenephos.h.nic acid） layers were adsorbed on the surface of AA6061 aluminum alloy for improving the lacquer adhesion and corrosion inhibition as a substitute for chromate coatings. The surface structure and characteristic of the amino-tri-（methylenephos.h.nic acid） layers on AA6061 aluminum alloy were investigated by means of XPs and ATR-FTIR analysis. The analyzed results showed that the amino-tri-（methylenephos.h.nic acid） adsorption layers adsorb on the surface of aluminium alloy via acid-base interaction in a bi-dentate conformation. After the amino-tri-（methylenephos.h.nic acid） layers were coated with epoxy resin, the layers showed good adhesive strength and favorable corrosion resistance in contrast to chromate coatings.

关键词： Amino-tri-(methylenephos.h.nic acid) layer Organophos.h.nate Aluminum alloy Corrosion resistance

Physico-analytical studies on salicylaldehyde Thiosemicarbazone Complexes

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Journal of Materials science & Technology 1998年第5期14卷 434-440页

作者： Abo El Fetoh, s.h. Abd El-Kareem, A.T. Wassel, M.A. Eid, A.E. Faculty of Girls-Ain shams University Egypt National Research Centre Egypt Faculty of science El-Menoufia University Egypt Faculty of science Al-Azhar University Egypt

The complexes of salicylaldehyde thiosemicarbazone with Pd, Cu and Ru were prepared. The prepared complexes were characterized by spectroscopic, element and thermal analyses and D.C. conductivity measurements. The antimicrobial activity of all the prepared compounds against gram-positive, gram-negative and fungi was studied. From these studies, it has been obtained that the ligand is bonded to the metals through O, N and s, but to palladium in [Pd (h//2L//2)] Cl//2 only through N and O. Biological studies confirm that the organic effect on both gram-positive and gram-negative bacteria is very weak and their complexes.h.ve no effect on fungi, but Cu-complex has strong influence on both types of bacteria. (Edited author abstract) 22 Refs.

关键词： Metallorganic polymers

Experimental and Numerical Investigation on Impact Performance of Carbon Reinforced Aluminum Laminates

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Journal of Materials science & Technology 2010年第4期26卷 327-332页

作者： s.h. song Y.s. Byun T.W. Ku W.J. song J. Kim B.s. Kang National Core Research Center Pusan National University Busan 609-735 Korea Dept. of Aerospace Engineering Pusan National University Busan 609-735 Korea Industrial Liaison Innovation Cluster Pusan National University Busan 609-735 Korea

It is known that fiber metal laminates （FML） as one of hybrid materials with thin metal sheets and fiber/epoxy layers.h.ve the characteristics of the excellent damage tolerance, fatigue and impact properties with a relatively low density. Therefore, the mechanical components using FML can contribute the enhanced safety level of the sound construction toward the whole body. In this study, the impact performance of carbon reinforced aluminum laminates （CARAL） is investigated by experiments and numerical simulations. Drop weight tests are carried out with the weight of 4.7 kg at the speed of 1 and 2 m/s, respectively. Dynamic non-linear transient analyses are also accomplished using a finite element analysis software, ABAQUs. The experiment results and numerical results are compared with impact load-time histories. Also, energy-time histories are applied to investigate the impact performance of CARAL.

关键词： Fiber metal laminates (FML) Carbon reinforced aluminum laminates (CARAL) Numerical simulation Impact performance

ALLOYING EFFECT OF Ni AND Cr ON ThE WETTABILITY OF COPPER ON W sUBsTRATE

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Acta Metallurgica sinica(English Letters) 2008年第5期21卷 369-379页

作者： X.h. Yang P. Xiao s.h. Liang J.T. Zou Z.K. Fan shaanxi Key Laboratory for Electrical Materials and Infiltration Technology School of Materials Science and Engineering Xi＇an University of Technology Xi＇an 710048 China

By the sessile drop technique, the wettability of Cu/W systems with the additions of Ni and Cr has been studied under vacuum atmos.h.re. Effects of Ni and Cr contents and wetting temperatures on the wettability and the wetting mechanisms of copper on W substrate have been investigated in detail. The results show that the wetting angles of Cu on the W substrate are decreased with an increase in the content of Ni or Cr, and also decrease with raising the wetting temperatures. sEM, EPMA, and X-ray diffraction have been used to analyze the interracial characteristics of the CuNi/W and CuCr/W systems. The results reveal that there is a transition layer about 2- 3μm in the interface of Cu-4.0 wt pct Ni/W, in which the interrnetallic phase Ni4W is precipitated. As to CuCr/W system, no reaction occurs at the interface. The two factors are that the contents of Cr and Ni and the infiltration temperature must be chosen appropriately in order to control the interfacial dissolution and reaction when the Cu- W alloys are prepared by the infiltration method.

关键词： Wettability Contact angles Cu, Cr, Ni W substrate