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Chinese Science bulletin 1997年第16期42卷 1372-1377页

作者： zhao, JS zhao, b Rao, b Chinese Acad Sci Guangzhou Inst Geochem Guangzhou 510640 Peoples R China Nanjing Univ Dept Earth Sci Nanjing 210008 Peoples R China

To counter the lack of consensus of opinion on mineralizations of Ta, Nb and W which have genetic relationship to fluorine-rich albite granite and the want of experimental evidence at present, some experiments reported in this study were carried out. The purpose of this study is to explain the genetic connection of Ta, Nb and W ore deposits and possible mechanism of their mineralization with the aid of the experimental results.

关键词： partition behaviour of Ta Nb and W process of crystallization differentiation of magma.

APPLICATION OF COAL GOLD AGGLOMERATION PROCESS TO GOLD RECOVERING FROM AMALGAMATION TAILINGS

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中国有色金属学会会刊：英文版 1997年第4期7卷 153-156页

作者： zhao, b Lu, LZ Xie, HQ Chinese Acad Sci Inst Chem Met Beijing 100080 Peoples R China

ＡＰＰＬＩＣＡＴＩＯＮＯＦＣＯＡＬＧＯＬＤＡＧＧＬＯＭＥＲＡＴＩＯＮＰＲＯＣＥＳＳＴＯＧＯＬＤＲＥＣＯＶＥＲＩＮＧＦＲＯＭＡＭＡＬＧＡＭＡＴＩＯＮＴＡＩＬＩＮＧＳ①ＺｈａｏＢｉｎｇ，ＬｕＬｉｚｈｕ，ＸｉｅＨｕｉｑｉｎ... 详细信息

ＡＰＰＬＩＣＡＴＩＯＮＯＦＣＯＡＬＧＯＬＤＡＧＧＬＯＭＥＲＡＴＩＯＮＰＲＯＣＥＳＳＴＯＧＯＬＤＲＥＣＯＶＥＲＩＮＧＦＲＯＭＡＭＡＬＧＡＭＡＴＩＯＮＴＡＩＬＩＮＧＳ①ＺｈａｏＢｉｎｇ，ＬｕＬｉｚｈｕ，ＸｉｅＨｕｉｑｉｎｇＩｎｓｔｉｔｕｔｅｏｆＣｈｅｍｉ...

关键词： CGA process amalgamation tailings gold recovering

SYNTHESES OF DITOPIC RECEPTOR MACROCYCLES

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Chinese Chemical Letters 1996年第6期7卷 535-538页

作者： zhao, b Wu, YJ Tao, JC Yuan, HZ ZHENGZHOU UNIV DEPT CHEMZHENGZHOU 450052PEOPLES R CHINA ACAD SINICA WUHAN INST PHYSLAB MAGNET RESONANCEWUHAN 430071PEOPLES R CHINA

Six kinds of new ditopic receptor macrocycles were synthesized by the condensation of 1,10-bis(4-formylphenyl)-1,4,7,10-tetraoxadecane or 1,10-bis(4-formyl-2-methoxyphenyl)-1,4,7,10-tetraoxadecane with polyamines. The...

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DETERMINATION OF CREEP PROPERTIES OF THERMAL bARRIER COATING(TbC)SYSTEMS FROM THE INDENTATION CREEP TESTING WITH ROUND FLAT INDENTERS

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Acta Metallurgica Sinica(English Letters) 2004年第4期17卷 503-508页

作者： b.zhao b.X.Xu J.Liu Z.F.Yue School of Mechanics Civil Engineering and Architecture Northwestern Polytechnic University Xi'an710072 ChinaSchool of Mechanics Civil Engineering and Architecture Northwestern Polytechnic University Xi'an710072 ChinaSchool of Mechanics Civil Engineering and Architecture Northwestern Polytechnic University Xi'an710072 ChinaSchool of Mechanics Civil Engineering and Architecture Northwestern Polytechnic University Xi'an710072 China

Indentation creep behavior with cylindrical flat indenters on the thermal barrier coating (TbC) was studied by finite element method (FEM). On ike constant applied indentation creep stress, there is a steady creep rate for each case studied for different creep properties of the TbC system. The steady creep depth rate depends on the applied indentation creep stress and size of the indenters as well as the creep properties of the bond coat of the TbC and the substrate. The possibilities to determine the creep properties of a thermal barrier system from indention creep testing were discussed. As an example, with two different size indenters, the creep properties of bond coat of the TbC system can be derived by an inverse FEM method. This study not only provides a numerical method to obtain the creep properties of the TbC system, but also extends the application of indentation creep method with cylindrical flat indenters.

关键词： thermal barrier coating (TbC) system indention creep testing,finite element creep analysis determination of creep parameters,bond coat

SYNTHESES OF NEW NITROGEN -OXYGEN DONOR MACROCYCLES

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Chinese Chemical Letters 1995年第5期6卷 373-376页

作者： zhao, b Wu, YJ Tao, JC Yuan, HZ Zhengzhou Univ Dept Chem Zhengzhou 450052 Peoples R China Acad Sinica Wuhan Inst Phys Lab Magnet Resonance & Atom & Mol Phys Wuhan 430071 Peoples R China

Twelve new nitrogen-oxygen donor macrocycles have been synthesized by condensation or N,N-bis[2-(2-formylphenoxy)ethyl]-4-methylphenylsulfonamide with diamines followed by a one pot reduction of the corresponding Schiff-base derivatives, The 4-methylphenylsulfonyl group can be removed by Na-Hg(6%) in methanol. All of the new aza-crowns were identified by EA, NMR, IR and MS.

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CALCULATION OF TRANSFORMATION VOLUME FRACTION TO HQ590 HOT ROLLED STRIP STEEL DURING CONTINUOUS COOLING

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Acta Metallurgica Sinica(English Letters) 2004年第5期17卷 754-760页

作者： X.G.Zhou X.M.zhao Y.b.Xu D.Wu TheStateKeyLab.ofRollingTechnologyandAutomation NortheasternUniversityShenyang110004China

On the basis of phase transformation kinetics, the transformation of γ→α,P,b have been investigated through considering the effect of deformation. The calculation methods of volume fraction have also been given. Co... 详细信息

关键词： transformation kinetics volume fraction nucleation rate

Effect of base Material on Microstructure and Texture Evolution of a Ti–6Al–4V Electron-beam Welded Joint

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Acta Metallurgica Sinica(English Letters) 2017年第5期30卷 499-504页

作者： G.Q.Wang Z.b.zhao b.b.Yu J.R.Liu Q.J.Wang J.H.Zhang R.Yang J.W.Li School of Materials Science and Engineering University of Science and Technology of China Institute of Metal Research Chinese Academy of Sciences Science and Technology on Power beam Processes Laboratory Beijing Aeronautical Manufacturing Technology Research Institute

The effect of base material（bM） on microstructure and crystallographic orientation evolution of a Ti–6Al–4V electron-beam welded joint was investigated. Meanwhile, the crystallographic orientation of prior b grains was studied by advanced electron backscattered diffraction data processing. The inhomogeneity of microstructure within welded joint was formed due to the different microstructures of bM. by comparing microstructure details of the welded joint, including microstructure morphology and crystallographic orientation with those of the base material, it can be found that both the microstructure morphology and crystallographic orientation of the EbW joint would be controlled by bM.

关键词： Electron-beam welding Titanium alloys Prior b orientation Microstructure Texture

MAGNETORESISTANCE EFFECT ObSERVED IN Fe/Mo MULTILAYERS PREPARED bY ELECTRON bEAM EVAPORATION

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Acta Metallurgica Sinica(English Letters) 2003年第3期16卷 237-240页

作者： T.He b.zhao Y.Gao F.Zeng F.Pan Laboratory of Advanced Materials Department of Materials Science and Engineering Tsinghua UniversityBeijing 100084 China

The Fe/Mo multilayers were prepared by electron beam evaporation, the micro structure and magnetic properties of the multilayers were studied by X-ray diffraction, vibrating-sample magnetometer (VSM) et al. The experimental results revealed that the Fe/Mo multilayers in our experimental conditions behaved magnetoresistance effect with a sharp peak on magnetoresistance (MR) ratio curve, and magnetoresistance is easily saturated at low applied magnetic fields. For [Fe(1.5nm)/Mo(1.0nm)]4,2 multilayers, MR ratio could arrive to 0.1%. The antiferromagnetic interlayer coupling could be observed in some films at room temperature. The strength of the antiferromagnetic interlayer coupling J in the films is low because of the low saturation field Hs. The relationship between magnetic properties and micro structure was also discussed in this paper.

关键词： magnetoresistance multilayer antiferromagnetic interlayer coupling nonmagnetic scattering

Analysis of local crystallographic orientation in an annealed Ti60 billet

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Journal of Materials Science & Technology 2019年第4期35卷 591-595页

作者： Z.b.zhao Z.Liu Q.J.Wang J.R.Liu R.Yang Institute of Metal Research Chinese Academy of Sciences School of Materials Science and Engineering University of Science and Technology of China

A heterogeneous microstructure in terms of local orientation distribution is often found in near-α titanium alloys. The presence of large regions with similar crystallographic orientation, called ‘macrozones',could drastically decrease the fatigue performance of titanium alloys. The present work reports on the crystallographic orientation of a near-α titanium alloy, Ti60, billet after annealing in an α+β phase *** texture was found to be weak, and no obvious macrozone was found in our measured zone where the variant selection is suppressed. Meanwhile, in-depth electron backscattered diffraction(EbSD) analysis was applied to evaluate the final microstructure, and the mechanisms by which they formed were analyzed.

关键词： Titanium alloys Microstructure Texture Heat treatment EbSD

Distinct dendritic α phase emerging on the surface of primary α phase in a compressed near-α titanium alloy

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Journal of Materials Science & Technology 2018年第4期34卷 666-669页

作者： Z.Liu Z.b.zhao J.R.Liu Q.J.Wang R.Yang Institute of Metal Research Chinese Academy of Sciences School of Materials Science and Engineering University of Science and Technology of China

The characteristic of the surface morphology of primary α phase was studied in a deformed near-α tita- nium alloy. Dendritic α phase emerged on the surfaces of primary α phase when the alloy was air-cooled in α ＋β phase field after deformation. The dendritic α grain has the same orientation with its original primary α grain. The formation of the dendritic α phase could be explained by interface instability in epi- taxial growth process of the primary α phase. The dislocations induced by deformation could facilitate the formation of dendritic α phase leading to the dendritic α phase and more obvious with the increase of strain. The growth of dendritic α phase was finally limited by the nucleation of second α phase with cooling.

关键词： Epitaxial growth Dendritic α phase Microstructure Interface instability Hot deformation