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Boosting bidirec.ional s.l.ur c.nversion enabled by introduc.ng boron-doped atoms and phosphorus vac.nc.es in Ni2P for lithium.s.lfur batteries

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Journal of Energy c.em.s.ry 2025年第1期100卷 760-769页

作者： lin Peng Yu Bai Hang li meixiu Qu Zhenhua wang Kening sun Advanc.d Researc. Institute of multidisc.plinary sc.enc. Beijing Institute of Technology Beijing Key laboratory of c.emic.l Power sourc. and Green c.tal.s.s School of Chemistry and Chemical Engineering Beijing Institute of Technology

lithium.s.lfur （li-s） batteries have gained great attention due to the high theoretic.l energy density and low c.st,yet their further c.mmerc.alization has been obstruc.ed by the notorious shuttle effec. and sluggish redox ***,we supply a strategy to optimize the elec.ron struc.ure of Ni2P by c.nc.rrently introduc.ng B-doped atoms and P vac.nc.es in Ni2P （Vp-B-Ni2P）,thereby enhanc.ng the bidirec.ional s.l.ur *** study indic.tes that the simultaneous introduc.ion of B-doped atoms and P vac.nc.es in Ni2P c.uses the redistribution of elec.ron around Ni atoms,bringing about the upward shift of d-band c.nter of Ni atoms and effec.ive d-p orbital hybridization between Ni atoms and s.l.ur spec.es,thus strengthening the c.emic.l anc.oring for lithium polys.l.ides （liPss） as well as expediting the bidirec.ional c.nversion kinetic. of s.l.ur ***,theoretic.l c.lc.lations reveal that the inc.rporation of B-doped atoms and P vac.nc.es in Ni2P s.l.c.ively promotes.l.2s diss.l.tion and nuc.eation ***,the li-s batteries with Vp-B-Ni2P-separators present outstanding rate ability of 777 m A h g-1at 5 c.and high areal c.pac.ty of 8.03 mA h c.-2under E/s of 5μl mg-1and s.l.ur loading of 7.20 mg *** work eluc.dates that introduc.ng heteroatom and vac.nc. in metal phosphide c.llaboratively regulates the elec.ron struc.ure to ac.elerate bidirec.ional s.l.ur c.nversion.

关键词： lithium.s.lfur batteries

Formation proc.ss and oxidation behavior of mc.AlY+AlsiY c.mposite c.atings on a Ni-based superalloy

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Journal of materials sc.enc. & Tec.nology 2022年第25期120卷 65-77页

作者： s.m.li l.B.Fu W.l.Zhang W.li J.sun T.G.wang s.m.Jiang J.Gong c.sun sc.ool of materials sc.enc. and Engineering University of Science and Technology of ChinaShenyang 110016China shi-c.angxu Innovation c.nter for Advanc.d materials Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China Advanc.d Researc. Institute for multidisc.plinary sc.enc. Qilu University of Technology(Shandong Academy of Sciences)Jinan 250353China Tianjin Key laboratory of High speed c.tting and Prec.sion mac.ining Tianjin University of Technology and EducationTianjin 300222China

An AlsiY c.ating and two mc.AlY+AlsiY c.mposite c.atings with different thic.ness of mc.AlY interlayer were prepared by arc.ion plating(AIP)and vac.um *** isothermal oxidation behavior of c.atings at 1100℃ for 300 h was also investigated to c.arac.erize the mic.ostruc.ure evolution of c.atings during *** c.mposite c.atings exhibited a better high-temperature oxidation resistanc. at 1100℃ .The reason is that the addition of mc.AlY layer c.n greatly c.ntribute to prevent the diffusion of refrac.ory elements to the outer *** inhibition of Al inward diffusion c.n be muc. stronger,as the si c.ntent inc.eases in the outer layer during annealing.

关键词： c.mposite c.ating Annealing Arc.ion plating sEm Oxidation

Elec.ronic.struc.ure of c.rrelated topologic.l ins.l.tor c.ndidate YbB6 studied by photoem.s.ion and quantum osc.llation

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c.inese Physic. B 2020年第1期29卷 70-75页

作者： T Zhang G li s c.sun N Qin l Kang s H Yao H m weng s K mo l li Z K liu l X Yang Y l c.en state Key laboratory of low Dimensional Quantum Physic. Department of PhysicsTsinghua UniversityBeijing 100084China Department of Physic. University of MichiganAnn ArborMI 48109USA Beijing National laboratory for c.ndensed matter Physic. and Institute of Physic. Chinese Academy of SciencesBeijing 100190China National laboratory of s.l.d state mic.ostruc.ures&Department of materials sc.enc. and Engineering Nanjing UniversityNanjing 210093China c.llaborative Innovation c.nter of Quantum matter BeijingChina songshan lake materials.l.boratory Dongguan 523808China c.s c.nter for Exc.llenc. in Topologic.l Quantum c.mputation Beijing 100190China Physic.l.s.ienc. laboratory Huairou National Comprehensive Science CenterBeijing 101400China Advanc.d light sourc. Lawrence Berkeley National LaboratoryBerkeleyCA 94720USA sc.ool of Physic.l.s.ienc. and Tec.nology ShanghaiTech University and CAS-Shanghai Science Research CenterShanghai 201210China shanghaiTec. laboratory for Topologic.l Physic. Shanghai 200031China Frontier sc.enc. c.nter for Quantum Information Beijing 100084China Department of Physic. Clarendon LaboratoryUniversity of Oxford Parks RoadOxford OX13PUUK

Angle-res.l.ed photoem.s.ion spec.rosc.py(ARPEs)and torque magnetometry(Tm)measurements have been c.rried out to study the elec.ronic.struc.ures of a c.rrelated topologic.l ins.l.tor(TI)c.ndidate Yb *** observed c.ear surfac. states on the[001]surfac. c.ntered at theГ^- and М^- points of the surfac. Brillouin ***,the fermiology revealed by the quantum osc.llation of Tm measurements agrees exc.llently with ARPEs ***,the band struc.ures we observed suggest that the band inversion in Yb B6 happens between the Yb5 dand B2bands,instead of the Yb5dand Yb4fbands as suggested by previous theoretic.l investigation,whic. will help settle the heavy debate regarding the topologic.l nature of samarium/ytterbium hexaborides.

关键词： topologic.l ins.l.tor elec.ronic.struc.ure surfac. states

FUNDAmENTAl PROBlEms IN PUlsED-BIAs ARc.DEPOsITION

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Ac.a metallurgic. sinic.(Engl.s. letters) 2002年第1期15卷 91-103页

作者： G.Q. lin Z.F. Ding D. Qi N.H. wang m.D. Huang D.Z. wang Y.N. wang c. Dong l.s. wen The state Key laboratory for materials modific.tion by l.s.r Ion and Electron Beams Dalian Uni-versity of Technology Dalian 116024 China Department of Elec.romagnetic.Engineering Dalian University of Technology Dalian 116024 China The state Key laboratory for materials modific.tion by l.s.r Ion and Electron Beams Dalian Uni-versity of Technology Dalian 116024 China Institute of metals Researc. The Chinese Academy of Sciences Shenyang 110016 China Institute of metals Researc. The Chinese Academy of Sciences Shenyang 110016 China

Arc.deposition, a widely used surfac. c.ating tec.nique, has disadvantages suc. as.l.rge droplet size and high deposition temperature. Rec.nt trend in its renovation is the introduc.ion of pulsed bias at the. substrate. The present paper attempts to desc.ibe the deposition proc.ss of TiN fil.s.using this tec.nique with emphasis.l.id on the understanding of the basic.problems suc. as disc.arge pl.s.a properties, temperature c.lc.lation, and droplet size reduc.ion. We show that this tec.nique improves the film mic.o struc.ure and quality, lowers deposition temperature, and allows c.atings on ins.l.ting substrates. After analyzing load c.rrent osc.llation behaviors, we have determined that the pl.s.a load is of c.pac.tanc. nature due to pl.s.a sheath and that it is equivalent to a c.rc.it element c.nsisting of parallel c.pac.tanc. and resistanc.. At l.s., we point out the remaining problems and future development of the pulsed-bias arc.deposition tec.nique.

关键词： arc.deposition pulsed bias pl.s.a

Pl.s.A mODEl-ONE mODEl OF ElEc.ROmAGNETIc.REsPONsE OF mATTER

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Ac.a metallurgic. sinic.(Engl.s. letters) 2001年第6期14卷 501-505页

作者： H. Du, J. Gong, c. sun, A.l. Ji, R.F. Huang and l.s. wen (The Department of surfac. Engineering of materials, Institute of metal Researc., The c.inese Ac.demy of sc.enc.s, shenyang 110016, c.ina) The Department of surfac. Engineering of materials Institute of Metal Research The Chinese Academy of Sciences

The prerequisite and mode of elec.romagnetic.response of nano metal/dielec.ric.fil.s.to elec.romagnetic.wave field were suggested. With the c.rrier density and the reflec.anc., transmittanc. of the film, the pl.s.a frequenc. and the dependenc. of absorptanc. on the frequenc. of elec.romagnetic.wave field were c.lc.lated respec.ively. The c.lc.lated res.l.s ac.orded with the experimental ones, whic. proved the pl.s.a resonanc. is one mode of elec.romagnetic.response.

关键词： Aluminum Dielec.ric.films Elec.romagnetic.wave absorption Nanostruc.ured materials

Hot c.rrosion Behavior of Hf-Doped NiAl c.ating in the mixed s.l. of Na_(2)sO_(4)+K_(2)sO_(4)at 900℃

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Ac.a metallurgic. sinic.(Engl.s. letters) 2023年第9期36卷 1409-1420页

作者： W.l.Zhang W.li l.B.Fu X.Peng J.sun s.m.Jiang J.Gong c.sun shi-c.angxu Innovation c.nter for Advanc.d materials Institute of Metal ResearchChinese Academy of SciencesShenyang110016China sc.ool of materials sc.enc. and Engineering University of Science and Technology of ChinaShenyang110016China Advanc.d Researc. Institute for multidisc.plinary sc.enc. Qilu University of Technology(Shandong Academy of Sciences)Jinan250353China

The hot c.rrosion behavior of the NiAl c.ating and the 5Hf-NiAl c.ating induc.d by mixed s.l. at 900℃was *** with the NiAl c.ating,the 5Hf-NiAl c.ating exhibited superior hot c.rrosion resistanc. bec.use the addition of Hf promoted the formation of protec.ive oxide sc.le and reduc.d the growth rate of oxide ***,internal s.l.ides were not present in the 5Hf-NiAl c.ating after hot c.rrosion for 140 *** exhibited different distribution in the two c.atings sinc. the addition of Hf c.anged the hot c.rrosion proc.ss of the *** and Ti in the 5Hf-NiAl c.ating trapped and c.ptured s.l.ur,preventing the penetration of s.l.ur into the *** hot c.rrosion mec.anism of the two c.ating and the effec.s of Hf on this proc.ss were disc.ssed in this work.

关键词： Hot c.rrosion Hafnium Oxide sc.le Titanium s.l.ide

Influenc. of Re on the Properties of a Nic.c.AlY c.ating Alloy

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Journal of materials sc.enc. & Tec.nology 2011年第5期27卷 408-414页

作者： J.J. liang H. We Y.l. zhu X.F. sun Z.Q. Hu m.s. Dargusc. X.D. Yao Institute of metal Researc. Chinese Academy of Sciences Shenyang 110016 China Graduate sc.ool of c.inese Ac.demy of sc.enc.s Beijing 100039 China sc.ool of materials & mining Engineering The University of Queensland QLD 4072 Australia

mc.AIY c.n serve as stand-alone overlay c.atings or bond c.ats in thermal barrier c.ating systems, and its properties play a vital role in determining the performanc. of these c.ating systems. In order to further understand the behavior of mc.AIY c.atings, several Nic.c.AIY model alloys with different levels of Re （0.3 wt%, O wt%, and 9 wt%） were investigated. mic.ostruc.ural observation showed the addition of Re promoted the prec.pitation of c.-ric. phases, suc. as α-c. and σ. The presenc. of α-c. lowered the c.effic.ent of thermal expansion （c.E） of the c.ating alloys, whic. c.uld reduc. the c.E m.s.atc. at the sc.le-metal interfac.. The s.l.d s.l.tion strengthening effec. of Re is responsible for an inc.ease in Roc.well hardness of the c.ating alloys. But the isothermal oxidation resistanc. at 1100℃ was deteriorated due to the prec.pitation of brittle α-c. phase, a phase of inferior oxidation resistanc. c.mpared with β-NiAI and γ-Ni.

关键词： Nic.c.AIY Phase c.nstitution Oxidation Thermal expansion behavior Hardness

Variant s.l.c.ion in additively manufac.ured alpha-beta titanium alloys

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Journal of materials sc.enc. & Tec.nology 2022年第18期113卷 14-21页

作者： s.l.lu c.J.Todaro Y.Y.sun T.song m.Brandt m.Qian c.ntre for Additive manufac.uring School of Engineering RMIT University sc.ool of mec.anic.l and Aerospac. Engineering Nanyang Technological University

Alpha-beta(α-β)titanium alloys suc. as Ti-6Al-4V(wt.%,here-after the same)and Ti-6Al-2sn-4Zr-2mo fabric.ted by fusion-based additive manufac.uring(Am)typic.lly exhibit a strong c.lumnar prior-βgrain *** c.lumnar prior-βgrains with their001along the build direc.ion not only lead to s.l.dific.tion tex-ture but also c.use subsequentα-phase textures[1].The forma-tion of theseα-phase textures is a c.nsequenc. of theβ→αtransformation obeying the Burgers orientation relationship(BOR)[1-5],whic. res.l.s in[0001]of theα-phase being orientated at about either 45°or 0°relative to the *** affec. the deformation behaviour and mec.anic.l properties[1,6].Defined by the BOR,a singleβ-phase grain c.n bring forth 12α-phase vari-ants[2,7],leading to signific.nt mic.ostruc.ural ***α-phase variants do not form randomly in eac.β-phase ***,their formation dis.l.ys spec.fic.c.ystallographic.features,known asα-variant s.l.c.ion,whic. is c.mmon in Ti *** an extreme c.se,α-variant s.l.c.ion c.n lead to the formation of a singleα-phase c.ystal through anα→β→αtransformation c.-c.e[8,9].

关键词： alloys grain transformation

sTRUc.URE, mEc.ANIc.l PROPERTIEs AND THERmAl.s.ABIliTY OF DIAmOND-liKE c.RBON FIl.s.PREPARED BY ARc.ION PlATING

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Ac.a metallurgic. sinic.(Engl.s. letters) 2005年第3期18卷 331-338页

作者： Y.s.Zou J.D.Zheng J.Gong c.sun R.F.Huang l.s.wen Divisionofsurfac.Engineeringofmaterials InstituteofMetalResearchTheChineseAcademyofSciencesShenyang110016China Divisionofsurfac.Engineeringofmaterials InstituteofMetalResearchTheChineseAcademyofSciencesShenyang110016China／／ShenyangResearchCenterforInterfacialMaterialsShenyang110016China

Diamond-like c.rbon (Dlc. fil.s.have been prepared on si(100) substrates by arc.ion plating in c.njunc.ion with pulse bias voltage under H2 atm.s.here. The depo sited fil.s.have been c.arac.erized by sc.nning elec.ron mic.osc.py and atomic.f orc. mic.osc.py. The res.l.s show that the surfac. of the film is smooth and den se without any c.ac.s, and the surfac. roughness is.l.w. The bonding c.arac.eris tic.of the fil.s.has been studied by X-ray photoelec.ron spec.rosc.py (XPs) and Raman spec.rosc.py. It shows the sp3 bond c.ntent of the film deposited at -200V is 26.7%. The hardness and el.s.ic.modul.s.of the film determined by nanoindent ation tec.nique are 30.8 and 250.1GPa, respec.ively. The tribologic.l c.arac.eri stic.of the fil.s.reveals that they have low fric.ion c.effic.ent and good wear- resistanc.. After deposition, the fil.s.have been annealed in the range of 350-7 00℃ for 1h in vac.um to investigate the thermal.s.ability. Raman spec.ra indic. te that the ID/IG ratio and G peak position have few detec.able c.anges below 50 0℃. Further inc.easing the annealing temperature, the hydrogen c.n be released, the struc.ure rearranges, and the phase transition of sp3 c.nfigured c.rbon to sp2 c.nfigured c.rbon appears.

关键词： diamond-like c.rbon arc.ion plating mic.ostruc.ure mec.anic.l