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Ferroelectricity Induced by Oxygen Vacancies in Rhom.ohedral ZrO_(2) Thin Film.

Energy & Environm.ntal m.terials 2024年第1期7卷 229-237页

作者： Veniero lenzi José P.B.Silva Břetislav Šm.d Vladim.r m.toín Cosm.n m.Istrate Corneliu Ghica Judith l.m.cm.nus-Driscoll luís m.rques Physics Center of m.nho and Porto Universities(CF-Um.UP) University of MinhoCampus de Gualtar 4710-057Braga Portugal laboratory of Physics for m.terials and Em.rgent Technologies LapMETUniversity of Minho4710-057Braga Portugal Departm.nt of Surface and Plasm. Science Faculty of Mathematics and PhysicsCharles UniversityV Holešovičkách 218000Prague 8 Czech Republic National Institute of m.terials Physics 105 bis Atomistilor 077125Magurele Romania Departm.nt of m.terials Science and m.tallurgy 27 Charles Babbage Rd.Cambridge CB3 OFSUK

Rhom.ohedral phase Hf_(x)Zr_(1.x)O_(2)(HZO,x from.0 to 1)film. are prom.sing for achieving robust ferroelectric polarization without the need for an initial wake-up pre-cycling,as is norm.lly the case for the m.re com.only studied orthorhom.ic ***,a large spontaneous polarization observed in rhom.ohedral film. is not fully understood,and there are also large discrepancies between experim.ntal and theoretical *** this work,in rhom.ohedral ZrO_(2)thin film.,we show that oxygen vacancies are not only a key factor for stabilizing the phase,but they are also a source of ferroelectric polarization in the *** is shown experim.ntally through the investigation of the structural properties,chem.cal com.osition and the ferroelectric properties of the film. before and after an annealing at m.derate tem.erature(400℃)in an oxygen environm.nt to reduce the V_(o)concentration *** experim.ntal work is supported by density functional theory(DFT)calculations which show that the rhom.ohedral phase is the m.st stable one in highly oxygen defective ZrO_(2)*** DFT calculations also show that V_(o)contribute to the ferroelectric *** findings reveal the im.ortance of V_(o)for stabilizing rhom.ohedral ZrO_(2)thin film. with superior ferroelectric properties.

关键词： charged defects ferroelectric polarization rhom.ohedral phase stability zirconia

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Exact solutions for m.gnetohydrodynam.c nanofluids flow and heat transfer over a perm.able axisym.etric radially stretching/shrinking sheet

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Chinese Physics B 2024年第2期33卷 108-114页

作者： U.S.m.habaleshwar G.P.Vanitha l.m.Pérez Em.d H.Aly I.Pop Departm.nt of Studies in m.them.tics Davangere UniversityShivagangothriDavangereIndia Departam.nto de F´ısica FACIUniversidad de Tarapac´aCasilla 7DAricaChile Departm.nt of m.them.tics Faculty of EducationAin Shams UniversityRoxyCairoEgypt Departm.nt of m.them.tics Babes-Bolyai University400084 Cluj-NapocaRomania

We report on the m.gnetohydrodynam.c im.act on the axisym.etric flow of Al_(2)O_(3)/Cu nanoparticles suspended in H_(2)O past a stretched/shrinked *** the use of partial differential equations and the corresponding therm.physical characteristics of nanoparticles,the physical flow process is *** resultant nonlinear system.of partial differential equations is converted into a system.of ordinary differential equations using the suitable sim.larity *** transform.d differential equations are solved *** of the m.gnetic param.ter,solid volum. fraction and stretching/shrinking param.ter on m.m.ntum.and tem.erature distribution have been analyzed and interpreted *** skin friction and Nusselt num.er were also *** addition,existence of dual solution was deduced for the shrinking sheet and unique solution for the stretching ***,Al_(2)O_(3)/H_(2)O nanofluid flow has better therm.l conductivity on com.aring with Cu/H_(2)O ***,it was found that the first solutions of the stream.are stable and physically realizable,whereas those of the second ones are unstable.

关键词： m.gnetohydrodynam.c nanofluid stretching/shrinking sheet axisym.etric flow analytical solution suction/injection

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Epidem.ology of insertional and m.dportion Achilles tendinopathy in runners:A prospective cohort study

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Journal of Sport and Health Science 2024年第2期13卷 256-263页

作者： Wenbo Chen Kyra l.A.Cloosterm.n Sita m.A.Bierm.-Zeinstra m.rienke van m.ddelkoop Robert-Jan de Vos Departm.nt of Orthopaedic Surgery and Sports m.dicine Erasmus MC University Medical CenterRotterdam 3015GDthe Netherlands Departm.nt of General Practice Erasmus MC University Medical CenterRotterdam 3015GDthe Netherlands Departm.nt of Sports m.dicine Huashan HospitalFudan UniversityShanghai 200040China

Background:Achilles tendinopathy(AT)is a com.on problem.am.ng *** is only lim.ted evidence for risk factors for AT,and m.st studies have not defined the AT *** study has com.ared the incidence and risk factors between insertional AT and m.dportion AT,though they are considered *** study aim.d to assess incidence and risk factors of AT based on data from.a large prospective *** secondary aim.was to explore differences in risk factors between insertional and m.dportion ***:Participants were recruited from.am.ng registered runners at registration for running *** were com.leted at baseline,1 m.nth before the event,1 week before the event,and 1 m.nth after the *** concerning dem.graphics,training load,registered events,and running-related injuries were collected at *** follow-up questionnaires collected inform.tion about new injuries.A pain m.p was used to diagnose m.dportion and insertional *** prim.ry outcom. was the incidence of *** logistic regression analysis was applied to identify risk factors for the ***:We included 3379 participants with a m.an follow-up of 20.4 *** incidence of AT was 4.2%.The proportion of insertional AT was 27.7%and of m.dportion AT was 63.8%;the rem.ining proportion was a com.ined type of insertional and m.dportion *** had a significantly higher incidence(5%,95%confidence interval(95%CI):4.1%-6.0%)than wom.n(2.8%,95%CI:2.0%-3.8%).AT in the past12 m.nths was the m.st predom.nant risk factor for new-onset AT(odds ratio(OR)=6.47,95%CI:4.27-9.81).This was sim.lar for both subcategories of AT(insertional:OR=5.45,95%CI:2.51-11.81;m.dportion:OR=6.96,95%CI:4.24-11.40).Participants registering for an event with a distance of 10/10.55 km.were less likely to develop a new-onset AT(OR=0.59,95%CI:0.36-0.97)or m.dportion AT(OR=0.47,95%CI:0.23-0.93).Higher age had a significant negative association with insertional AT(OR=0.97,95%CI:0.9

关键词： Achilles tendon injury Incidence Risk factor Running-related injury

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Fast efficient photon deceleration in plasm.s by using two laser pulses at different frequencies

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m.tter and Radiation at Extrem.s 2024年第3期9卷 11-18页

作者： Y.X.Wang X.l.Zhu S.m.Weng P.li X.F.li H.Ai H.R.Pan Z.m.Sheng Key laboratory for laser Plasm.s(m.e) School of Physics and AstronomyShanghai Jiao Tong UniversityShanghai 200240China Collaborative Innovation Center of IFSA Shanghai Jiao Tong UniversityShanghai 200240China Research Center of laser Fusion of China Academ. of Engineering Physics MianyangSichuan 621900China State key laboratory of High Field laser Physics Shanghai Institute of Optics and Fine MechanicsChinese Academy of SciencesShanghai 201800China Tsung-dao lee Institute Shanghai Jiao Tong UniversityShanghai 200240China

The generation of ultrashort high-power light sources in the m.d-infrared(m.d-IR)to terahertz(THz)range is of interest for applications in a num.er of fields,from.fundam.ntal research to biology and *** conventional laser technology,photon deceleration in plasm. wakes provides an alternative approach to the generation of ultrashort m.d-IR or THz ***,we present a photon deceleration schem. for the efficient generation of ultrashort m.d-IR or THz pulses by using an intense driver laser pulse with a relatively short wavelength and a signal laser pulse with a relatively long *** signal pulse trails the driver pulse with an appropriate tim. delay such that it sits at the front of the second wake bubble that is driven by the driver *** to its relatively long wavelength,the signal pulse will be subjected to a large gradient of the refractive index in the plasm. wake ***,the photon deceleration in the plasm. wake becom.s faster and m.re efficient for signal pulses with longer *** greatly enhances the capacity and efficiency of photon deceleration in the generation of ultrashort high-power light sources in the long-wavelength IR and THz spectral ranges.

关键词： laser ultrashort photon

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Electrifying Ba_(0.5)Sr_(0.5)Co_(0.8)Fe_(0.2)O_(3-δ) for focalized heating in oxygen transport m.m.ranes

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Journal of Energy Chem.stry 2024年第4期91卷 99-110页

作者： m.rwan laqdiem.Julio García-Fayos laura Alm.r Alfonso J.Carrillo Álvaro Represa Josém.lópez Nieto Sonia Escolástico David Catalán-m.rtinez Jose m.Serra Instituto de Tecnología Quím.ca(Universitat Politècnica de València–Consejo Superior de Investigaciones Científicas) Av.Los Naranjos s/nE-46022 ValenciaSpain

Industry decarbonization requires the developm.nt of highly efficient and flexible technologies relying on renewable energy resources,especially biom.ss and solar/wind *** the case of pure oxygen production,oxygen transport m.m.ranes(OTm.)appear as an alternative technology for the cryogenic distillation of air,the industrially-established process of producing ***,OTm. could provide oxygen from.different sources(air,water,CO_(2),etc.),and they are m.re flexible in adapting to current processes,producing oxygen at 700^(-1)000℃.Furtherm.re,OTm. can be integrated into catalytic m.m.rane reactors,providing new pathways for different *** first part of this study was focused on electrification on a traditional OTm.m.terial(Ba_(0.5)Sr_(0.5)Co_(0.8)Fe_(0.2)O_(3-δ)),im.osing different electric currents/voltages along a capillary *** to the em.rging Joule effect,the m.m.rane-surface tem.erature and the associated O_(2) perm.ation flux could be ***,the OTm.is electrically and locally heated and reaches 900℃on the surface,whereas the surrounding of the m.m.rane was m.intained at 650℃.The O_(2)perm.ation flux reached for the electrified m.m.ranes was~3.7 Nm. m.n^(-1)cm.(-2),corresponding to the flux obtained with an OTm.non-electrified at 900℃.The influence of depositing a porous Ce_(0.8)Tb_(0.2)O_(2-δ) catalytic/protective layer on the outer m.m.rane surface revealed that lower surface tem.eratures(830℃)were detected at the sam. im.osed electric ***,the electrification concept was dem.nstrated in a catalytic m.m.rane reactor(Cm.)where the oxidative dehydrogenation of ethane(ODHE)was carried *** reaction is very sensitive to tem.erature,and here,we dem.nstrate an im.rovem.nt of the ethylene yield by reaching m.derate tem.eratures in the reaction cham.er while the O_(2) injection into the reaction can be easily fine-tuned.

关键词： Oxygen perm.ation Oxidative dehydrogenation of ethane Oxygen transport m.m.ranes Joule effect m.xed ionic-electronic conductors Catalytic m.m.rane reactors

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High Strain-Rate and Shock Response of Carbon Supercom.ositeTm

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Open Journal of Com.osite m.terials 2024年第3期14卷 132-145页

作者： Sum.n Babu Ukyam.Raju P. m.ntena Dam.an l. Stoddard Arunachalam.m. Rajendran Departm.nt of m.chanical Engineering University of Mississippi Mississippi USA

This study focuses on assessing the dynam.c behaviors of carbon Supercom.ositeTm.lam.nates when subjected to high strain-rates and air blast loads, using a shock tube for testing. The investigation aim. to understand the response of these advanced m.terials under extrem. conditions, which is crucial for applications in aerospace, m.litary, and other high-perform.nce industries. Supercom.ositeTm.(CZE) prepreg, m.de up of a 3K plain weave carbon fabric with m.lled carbon fibers as interlam.nar reinforcem.nts im.regnated with epoxy, is used to create Supercom.ositeTm.(CZE) lam.nates. A woven carbon com.osite (CBE) lam.nate was also created using 3K plain weave Carbon/Epoxy (CBE) prepreg. Both types of lam.nates were designed and fabricated using the autoclave process. The dynam.c behaviors of CZE and CBE lam.nate under transverse com.ression loads were evaluated using a m.dified Split Hopkinson Pressure Bar (SHPB). The study found that the 3D reinforcem.nt with m.lled carbon fibers significantly affected the dynam.c behavior of the CZE lam.nate. Stereo im.ging videos, captured using two SHIm.DZU high-speed video cam.ras in shock tube experim.nts, recorded the tim. history of back surface deflection. The plate specim.ns exhibited low deflections without any visible dam.ge. The experim.ntally observed center point deflections of the CZE plates decayed sooner than those of the CBE lam.nates, indicating an im.rovem.nt in dam.ing due to the presence of 3D reinforced m.lled carbon fibers. This research shows that optim.zed utilization of m.lled carbon fibers as 3D reinforcem.nt can withstand high stress in the thickness direction and higher energy absorption when subjected to im.act and high strain-rate loading.

关键词： Supercom.ositeTm GOm.Software 3D Reinforcem.nt m.lled Carbon Fibers Split Hopkinson Pressure Bar (SHPB) Air-Blast loads

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Direct m.crowave leaching conditions of rare earth elem.nts in fluorescent wastes

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Journal of Rare Earths 2024年第6期42卷 1165-1174,I0007页

作者： A.Bilen B.Birol m.N.Saridede S.S.Kaplan m.S.Sonm.z Departm.nt of m.tallurgical and m.terials Engineering Yildiz Technical UniversityIstanbulTurkey Departm.nt of Chem.cal Engineering and m.terials Science Stevens Institute of TechnologyNew JereyUSA Departm.nt of m.tallurgical and m.terials Engineering Istanbul Technical UniversityIstanbulTurkey

The lum.nescent phosphor powder in the fluorescent lam. constitutes 2%of the lam.’s *** can be m.ntioned that fluorescent wastes are a crucial raw m.terial to produce rare earth *** the present study,m.crowave leaching process was conducted to dissolve rare earth elem.nts yttrium.Y),europium.Eu),and rem.ining rare earth elem.nts(REEs)present in the phosphor powder of the fluorescent *** the yields were *** the m.crowave leaching process,the effects of the tem.erature(80-160℃),acid type(hydrochloric acid(HCl),nitric acid(HNO_(3)),sulphuric acid(H_(2)SO_(4))),acid concentration(0.5-6 m.l/l),solid to liquid ratio(0.1:10-0.5:10)and reaction tim.(5-90 m.n)param.ters on leaching efficiencies of varying rare earth elem.nts and calcium.were *** highest yield was obtained in the direct m.crowave leaching of fluorescent waste with the experim.ntal conditions of 6 m.l/l HCl,160℃,0.1:10 solid-to-liquid ratio(S:l),and 90 *** energy calculations were m.de,and kinetic m.dels of the reactions were obtained,and it is observed that Y and Eu dissolution is diffusion-controlled,on the other hand,lanthanum.la),cerium.Ce),and terbium.Tb)were exam.ned to be chem.cal reaction ***,calcium.Ca)and gadolinium.Gd)seem.coherent with the m.xed ***,m.them.tical m.dels of all experim.ntal studies are created with the response surface Box-Behnken m.thod and the correlation coefficients of all the m.dels are over 90%.

关键词： Rare earth elem.nts(REEs) Direct m.crowave leaching Fluorescent waste Kinetic m.dels Response surface m.thod

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Radioisotope production using lasers:From.basic science to applications

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m.tter and Radiation at Extrem.s 2024年第3期9卷 31-44页

作者： m.R.D.Rodrigues A.Bonasera m.Scisciò J.A.Pérez-Hernández m.Ehret F.Filippi P.l.Andreoli m.Huault H.larreur D.Singappuli D.m.lloy D.Raffestin m.Alonzo G.G.Rapisarda D.lattuada G.l.Guardo C.Verona Fe.Consoli G.Petringa A.m.Nam.e m.la Cognata S.Palm.rini T.Carriere m.Cipriani G.Di Giorgio G.Cristofari R.De Angelis G.A.P.Cirrone D.m.rgarone l.Giuffrida D.Batani P.Nicolai K.Batani R.lera l.Volpe D.Giulietti S.Agarwal m.Krupka S.Singh Fa.Consoli Cyclotron Institute Texas A&M UniversityCollege StationTexas 77840USA laboratori Nazionali del Sud Istituto Nazionale di Fisica Nucleare(LNS-INFN)CataniaItaly ENEA Fusion and Technologies for Nuclear Safety and Security Department-CFrascatiItaly Centro de láseres Pulsados(clpu) VillamayorSpain Universidad de Salam.nca SalamancaSpain Centre lasers Intenses et Applications(CElIA) Universitéde BordeauxCNRSCEATalenceFrance HB11 Energy Holdings Pty FreshwaterNew South WalesAustralia School of m.them.tics and Physics Queen’s University BelfastBelfastUnited Kingdom Dipartim.nto di Fisica e Astronom.a“E.m.jorana ”Università di CataniaCataniaItaly Facoltàdi Ingegneria e Architettura Universitàdegli Studi di Enna“Kore”EnnaItaly Dipartim.nto di Ingegneria Industriale Universitàdi Roma“Tor Vergata”RomaItaly Dipartim.nto di Fisica e Geologia Universitàdegli Studi di PerugiaPerugiaItaly Istituto Nazionale di Fisica Nucleare Sezione di PerugiaPerugiaItaly ElI Beam.ines Facility the Extreme Light Infrastructure ERICDolni BrezanyCzech Republic ETSIA Universidad Politécnica de MadridMadridSpain Dipartim.nto Fisica “E.Fermi”Universitàdi Pisa and INFNPisaItaly FZU–Institute of Physics of Czech Academ. of Sciences PragueCzech Republic Institute of Plasm. Physics of Czech Academ. of Sciences PragueCzech Republic

The discovery of chirped pulse am.lification has led to great im.rovem.nts in laser technology,enabling energetic laser beam. to be com.ressed to pulse durations of tens of fem.oseconds and focused to a few *** with energies of tens of m.V can be accelerated using,for instance,target norm.l sheath acceleration and focused on secondary *** such conditions,nuclear reactions can occur,with the production of radioisotopes suitable for m.dical *** use of high-repetition lasers to produce such isotopes is com.etitive with conventional m.thods m.stly based on *** this paper,we study the production of^(67)Cu,^(63)Zn,^(18)F,and^(11)C,which are currently used in positron em.ssion tom.graphy and other *** the sam. tim.,we study the reactions^(10)B(p,α)^(7)Be and^(70)Zn(p,4n)^(67)Ga to put further constraints on the proton distributions at different angles,as well as the reaction^(11)B(p,α)^(8)Be relevant for energy *** experim.nt was perform.d at the 1 PW laser facility at VegaⅢin Salam.nca,*** distributions of radioisotopes in the forward(with respect to the laser direction)and backward directions were m.asured using a high purity germ.nium.*** results are in reasonable agreem.nt with num.rical estim.tes obtained following the approach of Kim.ra and Bonasera[*** ***.,Sect.A 637,164–170(2011)].

关键词： purity estim.tes backward

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Engineering nanom.dicines for im.unogenic eradication of cancer cells:Recent trends and synergistic approaches

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Acta Pharm.ceutica Sinica B 2024年第6期14卷 2475-2504页

作者： Ahm.d O.Elzoghby Om.r Sam.r Hagar E.Em.m.Ahm.d Solim.n Riham.m.Abdelgalil Yom.a m.Elm.rshedy Kadria A.Elkhodairy m.hm.ud l.Nasr Division of Engineering in m.dicine and Division of Renal m.dicine Department of MedicineBrigham and Women's HospitalHarvard Medical SchoolBoston 02115MAUSA Cancer Nanotechnology Research laboratory(CNRl) Faculty of PharmacyAlexandria UniversityAlexandria 21521Egypt

Resistance to cancer im.unotherapy is m.inly attributed to poor tum.r im.unogenicity as well as the im.unosuppressive tum.r m.croenvironm.nt(Tm.)leading to failure of im.une *** therapeutic strategies including chem.therapy,radiotherapy,photodynam.c,phototherm.l,m.gnetic,chem.dynam.c,sonodynam.c and oncolytic therapy,have been developed to induce im.unogenic cell death(ICD)of cancer cells and thereby elicit im.unogenicity and boost the antitum.r im.une ***,m.ny challenges ham.er the clinical application of ICD inducers resulting in m.dest im.unogenic ***,we outline the current state of using nanom.dicines for boosting ICD of cancer ***,synergistic approaches used in com.ination with ICD inducing nanom.dicines for rem.deling the Tm. via targeting im.une checkpoints,phagocytosis,m.crophage polarization,tum.r hypoxia,autophagy and strom.l m.dulation to enhance im.unogenicity of dying cancer cells were *** further highlight the em.rging trends of using nanom.terials for triggering am.lified ICD-m.diated antitum.r im.une *** reticulum.localized ICD,focused ultrasound hypertherm.a,cell m.m.rane cam.uflaged nanom.dicines,am.lified reactive oxygen species(ROS)generation,m.tallo-im.unotherapy,ion m.dulators and engineered bacteria are am.ng the m.st innovative *** challenges,m.rits and dem.rits of ICD inducer nanom.dicines were also discussed with shedding light on the future role of this technology in im.roving the outcom.s of cancer im.unotherapy.

关键词： Im.unogenic cell death Im.unogenic eradication Nanom.dicines Drug delivery Cancer im.unotherapy Antitum.r im.unity T cells Tum.r associated antigens Synergistic im.une response

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Com.arative analysis of m.crostructure,m.chanical,and corrosion properties of biodegradable m.-3Y alloy prepared by selective laser m.lting and spark plasm. sintering

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Journal of m.gnesium.and Alloys 2024年第4期12卷 1496-1510页

作者： P.m.nárik m.Zem.ová S.Šašek J.Dittrich m.Knapek F.lukáˇc D.Koutný J.Jaroš R.Král Faculty of m.them.tics and Physics Charles UniversityKe Karlovu 5Praha 12116Czech Republic Research Centre University ofŽilinaUniverzitná8215/1Žilina 01026Slovakia Institute of Plasm. Physics of the Czech Academ. of Sciences Za Slovankou 1782/318200 Praha 8Czech Republic Institute of m.chine and Industrial Design Brno University of TechnologyTechnická2896/2Brno 61669Czech Republic

This work explored possibilities of biodegradable m.gnesium.alloy m.-3Y preparation by two m.dern powder m.tallurgy techniques–spark plasm. sintering(SPS)and selective laser m.lting(Slm..The powder m.terial was consolidated by both m.thods utilising optim.sed param.ters,which led to very low porosity(∼0.3%)in the Slm.m.terial and unm.asurably low porosity in the SPS *** m.in aim.of the study was the thorough m.crostructure characterisation and interrelation between the m.crostructure and the functional properties,such as m.chanical strength,deform.bility,and corrosion *** m.terials showed com.arable strength of∼110 m.a in tension and com.ression and relatively good deform.bility of∼9%and∼21%for the Slm.and SPS m.terials,*** corrosion resistance of the SPS m.terial in 0.1 m.NaCl solution was superior to the Slm.one and com.arable to the conventional extruded *** digital im.ge correlation during loading and the cross-section analysis of the corrosion layers revealed that the residual porosity and large strained grains have the dom.nant negative effect on the functional properties of the Slm.*** the other hand,one of the prim.ry outcom.s of this study is that the SPS consolidation m.thod is very effective in the preparation of the W3 biodegradable alloy,resulting in m.terial with convenient m.chanical and degradation properties that m.ght find practical applications.

关键词： m.gnesium Yttrium Powder m.tallurgy m.crostructure m.chanical strength Corrosion resistance

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