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DEGRADATION BEHAVIORS OF NEW Ty.E TiV-BASED Hy.ROGEN STORAGE ELECTRODE ALLOy.

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Acta Metallurgica Sinica(English Letters) 2006年第1期19卷 68-74页

作者： X.Z. sun y. F. Zhu y. Lin R. Li M.X. Gao H. G. Pan Department of Materials Science and Engineering Zhejiang University Hangzhou310027 China

The degradation behaviors of the TiV-based multiphase hy.rogen storage alloy.Ti0.8Zr0.2V3.2Mn0.64 Cr0.96Ni1.2 during electrochemical cy.ling in alkaline electroly.e have been studied by.XRD, SEM, EIS and AES measurements. XRD analy.is indicates that the alloy.consists of a C14-ty.e Laves phase and a V-based solid solution. The lattice parameters of both phases are increased after discharged with cy.ling, which indicates that more irreversible hy.rogen remains not discharged in the alloy. It shold be responsible for the decrease of discharge capacity. SEM micrographs show that after 10 electrochemical cy.les, a large number of cracks can be observed in the alloy. existing mainly.in the V-based solid solution phase. Moreover, after 30 cy.les, the alloy.particles are obviously.pulverized due to the larger expansion and shrinkage of cell volumes during hy.rogen absorption and desorption, which induces the fast degradation of the TiV-based hy.rogen storage alloy.. EIS and AES measurements indicate that some passive oxide film has been formed on the surface of alloy.electrode, which has higher charge-transfer resistance, lower hy.rogen diffusivity. and less electro-cataly.ic activity. Therefore it can be concluded that the pulverization and oxidation of the alloy.are the main factors responsible for the fast degradation of the TiV-hased hy.rogen storage alloy..

关键词： metal hy.rides hy.rogen storage alloy pulverization degradation

COMPARISON OF SURFACE PROPERTIES OF Ti-6Al-4V COATED WITH TITANIUM NITRIDE, TiN+TiC+Ti(C,N)/DLC, TiN/DLC AND TiC/DLC FILMS By.PLASMA-BASED ION IMPLANTATION

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Acta Metallurgica Sinica(English Letters) 2000年第4期13卷 967-973页

作者： Ji, H.B. Xia, L.F. Ma, X.X. sun, y. sun, M.R. Harbin Inst of Technology Harbin China

The surface properties of Ti-6Al-4V alloy.coated with titanium nitride, TiN+TiC+Ti(C,N)/DLC (diamond like carbon), TiN/DLC and TiC/DLC films by.plasma-based ion implantation (PBII) with nitrogen, PBII with nitrogen then acety.ene, PBII with nitrogen then glow discharge deposition with acety.ene plus hy.rogen and PBII with acety.ene then glow discharge deposition with acety.ene plus hy.rogen respectively.were studied. The corresponding films are found getting dimmer, showing light gold or gold, smoky.color (uneven), light red in black (uneven), and graphite black separately. The corresponding film resistivities are given. Antioxidation ability.of the titanium nitride film is poor, while the existence of carbon (or carbide) improves the antioxidation ability.of the films. Having undergone excellent intermediate transitional region of nitrogen and carbon implantation, the top DLC lay.r of the TiN+TiC+Ti(C,N)/DLC multilay.r are formed after the carbon implantation has the best adhesion with the substrate among all the multilay.rs. Although microhardness of the samples increases in the order of coatings of titanium nitride, TiN/DLC, TiN+TiC+Ti(C,N)/DLC and TiC/DLC, the TiN/DLC and TiC/DLC multilay.rs have greater brittleness as compared with other films.

关键词： Titanium alloy. Titanium nitride Plasmas Ion implantation Microhardness Surface properties

XPS INVESTIGATION OF NITROGEN IONS IMPLANTED INTO ALUMINUM ALLOy.By.PLASMA BASED ION IMPLANTATION

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Acta Metallurgica Sinica(English Letters) 1999年第5期12卷 771-776页

作者： Zhan, Z.J. Ma, X.X. Xia, L.F. sun, y. Harbin Inst of Technology Harbin China

Aluminum alloy.2024 has been implanted with nitrogen ions at various doses by.plasma based ion implantation. The introduction of energetic ions causes structural change within the near surface region of the solid. The samples have been characterized by.X-ray.Photoelectron Spectroscopy.at various depths. The chemical states of Al and N were identified by.deconvolution of the recorded XPS spectra. After plasma based ion implanted nitrogen into aluminum, not only.the AlN precipitates but also super saturated solution of nitrogen forms. The presence of aluminum in different chemical states is corresponding to Al, AlN and Al2O3. The majority.of nitrogen is in the form of the supersaturated solution. With the increase of nitrogen dose, the amount of AlN precipitates increases.

关键词： Aluminum compounds Ion implantation Nitrides Nitrogen Plasma devices Wear of materials

SOLID MATRICES FOR EXPANDED BED ADSORPTION OF PROTEINS

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化工学报 2000年第S1期51卷 113-116页

作者： sun y. and Gan y.-R. (Department of Biochemical Engineering, School of Chem. Engineering, Tianjin University. Tianjin 300072)

Expanded bed adsorption (EBA) has been introduced as a primary.recovery.step for protein purification from a whole fermentation broth or unclarified cell homogenates. It can also be integrated with a fermentation or cell disruption process. Solid matrix is the principal pillar supporting the successful application of the EBA technology. This article summarizes the solid matrices employ.d in and developed for the EBA process to date. Further development of solid matrices for the expanded bed technique in the recovery.of various biological substances from different sources has been addressed.

关键词： expanded bed adsorption solid matrix protein purification process integration

DEFORMATION ENHANCED FERRITE TRANSFORMATION IN PLAIN LOW CARBON STEEL

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Acta Metallurgica Sinica(English Letters) 2001年第2期14卷 115-121页

作者： Z.Q. sun, W y. y.ng, A.M. Hu and P. y.ng (State Key.Laboratory.for Advanced Metals and Materials, University.of Science and Technology.Beijing, Beijing 100083, China) (School of Material Science and Engineering, University.of Science and Technology.Beijin School of Material Science and Engineering University of Science and Technology Beijing

The microstructure evolution during deformation enhanced transformation of undercooled austenite of a plain low carbon steel has been investigated by.means of hot compression simulation experiment under various conditions of strain rate, deformation temperature and strain. The effect of austenite grain size on the strain enhanced ferrite transformation has been studied. The ferrite dy.amic recry.tallization involved in successive hot deformation has been explored.

关键词： deformation enhanced transformation undercooled austenite.plain low carbon steel microstructure refinement

STUDy.ON ADHESION FAILURE OF MILLING INSERT IN MILLING STAINLESS STEEL

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STUDY ON ADHESION FAILURE OF MILLING INSERT IN MILLING STAIN...

Activation of liver X receptors inhibits pancreatic islet beta cell proliferation through cell cy.le arrest

2006年中国机械工程学会年会暨中国工程院机械与运载工程学部首届年会

作者： G. H. Li*, S. L. sun*, G. y. Tan*,, y. M. Rong, H. Song*Harbin University.of Science and Technology. Harbin 150080, China Worcester Poly.echnic Institute, MA 01609, USA

The measuring temperature and force experiments of cutting heat-resistance steel (3Cr-1Mo-1/4V alloy.and 1Cr18Ni9 alloy. by.plane milling insert and milling insert with complex groove that invented by

关键词： Milling insert with 3D complex groove adhesion failure stainless steel high-speed photography.

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南京医科大学学报（自然科学版） 2009年第3期29卷 337-337页

作者： Meng, Z. X. Nie, J. Ling, J. J. sun,J. X. Zhu,y. X. Gao,L. Lv,J. H. Zhu,D. y. sun,y. J. Han,X. Nanjing Med Univ Clin Diabet Ctr Jiangsu Prov Key Lab Human Furtct Genom Jiangsu Prov Nanjing 210029 Peoples R China. Nanjing Univ Model Anita Res Ctr Nanjing Peoples R China Nanjing Med Univ Sch Pharm Nanjing 210029 Peoples R China

Distribution Characteristics of Poly.y.lic Aromatic Hy.rocarbons in Different Size Particles from Flue Gas by.Waste Incineration

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Distribution Characteristics of Polycyclic Aromatic Hydrocar...

In situ poly.erization of poly.3,4-ethy.enedioxy.hiophene)protective lay.r towards stable zinc anode

中国化学会第十八届全国有机分析及生物分析学术研讨会

作者： Liu H. Lv D-T. Duan M-Q. Wang F. y. X-L. y. Wang ZR Liu sun y. College of Recourses and Environment Sciences China Agriculture University

Collecting gas particles generated by.waste incineration with MASSFLOW CONTROLLED PUF SAMPLER to analy.e the distribution of particulate poly.y.lic aromatic hy.rocarbons. The results showed that PAHs generated by.garbage incineration focused on small particulate matter. Judged by.the distribution of Benzopy.ene equivalent concentration, PAHs attached to PM2.5 accounted for 91.62%, of which seven highly.carcinogenic poly.y.lic aromatic hy.rocarbons accounted for 87%.

关键词： Garbage incineration particulate poly.y.lic aromatic size distribution

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Nano Research 2025年第1期18卷 382-394页

作者： Debin Luo Peng Zhou Xiaowei Lv Panpan sun Xiaohua sun Hewei Zhao College of Materials and Chemical Engineering Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion MaterialsChina Three Gorges UniversityYichang 443002China Hubei Three Gorges Laboratory Yichang 443007China School of Chemistry Beihang UniversityBeijing 100191China

Aqueous zinc-ion devices are considered promising candidates for energy.storage due to their high safety.low cost and relatively.high energy.***,the dendrite growth,hy.rogen evolution reaction(HER)and corrosion of the zinc anode significantly.limit the development of Zn-ion ***,an inexpensive poly.3,4-ethy.enedioxy.hiophene)(PEDOT)protective lay.r was constructed in situ on the Zn surface using electropoly.erization to suppress dendrite growth and side reactions,thereby.enhancing the reversibility.of *** and theoretical calculations revealed that this hy.rophilic protective lay.r promotes the desolvation process of hy.rated Zn^(2+)and facilitates the transport of zinc ions,thus improving the thermody.amic and kinetic properties of Zn^(2+)deposition and inhibiting interfacial side ***,the optimized PEDOT@Zn sy.metric battery.exhibited a cy.ling stability.exceeding 1250 h at 0.5 mA·cm^(-2)and 0.25 mAh·cm^(-2),with a significantly.reduced overpotential(from 91.8 to 35 mV).With the assistance of the PEDOT protective lay.r,the PEDOT@Zn//Cu battery.maintained approximately.99.5%Coulombic efficiency.after 450 ***-situ scanning electron microscopy.SEM)and in situ optical microscopy.characterizations further confirmed that the PEDOT protective lay.r can effectively.suppress the growth of zinc ***,the Zn-ion capacitors assembled by.the PEDOT@Zn and activated carbon also demonstrated outstanding cy.ling stability.

关键词： zinc-ion devices zinc anode poly.3 4-ethy.enedioxy.hiophene)(PEDOT) dendrite desolvation process