{"currentpage":1,"firstResult":0,"maxresult":10,"pagecode":5,"pageindex":{"endPagecode":5,"startPagecode":1},"records":[{"abstractinfo":"本文用等温冰盐水液淬法制备了过共晶蠕墨铸铁试样,并用透射电子显微镜对此试样的薄膜进行了观察,对石墨内部的异质点、条纹进行了分析,结果表明:蠕虫状石墨生长改变方向处存在着许多异质点,这些异质点除含少量Si外,几乎全部为铁;同时,石墨内部还存在着许多孪晶和位错,并且认为孪晶对蠕虫状石墨在空间改变生长方向有一定的作用,位错可以给石墨的生长提供生长台阶。","authors":[{"authorName":"王亚男","id":"4a5a1a83-b6cb-4f38-ba0d-a77c4e8a69c9","originalAuthorName":"王亚男"},{"authorName":"宋维锡","id":"80b125a2-3b01-4d8d-9c6e-1a21f2a8b170","originalAuthorName":"宋维锡"}],"categoryName":"|","doi":"","fpage":"149","id":"943a8896-720f-470e-8167-650779fc5a49","issue":"2","journal":{"abbrevTitle":"JSXB","coverImgSrc":"journal/img/cover/JSXB.jpg","id":"48","issnPpub":"0412-1961","publisherId":"JSXB","title":"金属学报"},"keywords":[{"id":"ebd3e6cc-6c27-4e39-bf19-a3c222d2d54e","keyword":"蠕虫状石墨","originalKeyword":"蠕虫状石墨"},{"id":"16f09cee-6fc1-4f52-9b29-276596e2f0b9","keyword":"<span style=\"color:red\">hetro-particle</span>","originalKeyword":"hetro-particle"},{"id":"578183e5-6bd6-40bc-a7ab-daae43d83081","keyword":"stripe","originalKeyword":"stripe"},{"id":"562b6e68-4184-4a97-b367-50c88e2562c5","keyword":"twin","originalKeyword":"twin"},{"id":"b3b72584-2db9-4343-ac50-2b664a2c741a","keyword":"dislocation","originalKeyword":"dislocation"}],"language":"zh","publisherId":"0412-1961_1990_2_10","title":"铸铁中蠕虫状石墨微观结构","volume":"26","year":"1990"},{"abstractinfo":"Rayleigh identity based on a multipole expansion theory is extended to analyze the forces between particles in electrorheological system. The shear modulus for chains of particles arrayed on a square lattice is calculated. It is found that the modulus increases linearly with the ratio of dielectric constants of dispersed particles to the continuous phase, as the ratio becomes large, contrary to expectations from a simple dipole approximation where it would saturate. In the case of conducting <span style=\"color:red\">particle</span>, the modulus varies with the frequency of applied held. A limiting case of infinitely conducting particles conductivity is considered. It is found that the <span style=\"color:red\">particle-particle</span> forces are extremely sensitive to their separation. (C) 2001 Elsevier Science B.V. All rights reserved.","authors":[],"categoryName":"|","doi":"","fpage":"64","id":"a06225c1-a8bb-4b01-9c29-fab4c916e9de","issue":"42737","journal":{"abbrevTitle":"PBM","id":"b1289047-807c-4b57-bffc-a126ac2ffa2a","issnPpub":"0921-4526","publisherId":"PBM","title":"Physica B-Condensed Matter"},"keywords":[{"id":"b9055887-34df-47e0-b481-a4b304ed97a0","keyword":"electrorheological fluids;permittivity;conductivity;shear stress;shear modulus","originalKeyword":"electrorheological fluids;permittivity;conductivity;shear stress;shear modulus"}],"language":"en","publisherId":"0921-4526_2001_42737_1","title":"Analysis of <span style=\"color:red\">particle-particle</span> forces in electrorheological fluids","volume":"299","year":"2001"},{"abstractinfo":"The Rayleigh identity, based on a multipole expansion theory, is extended to analyse the forces between particles in an electrorheological system. The shear modulus for chains of particles arrayed on a square lattice is calculated. It is found that the modulus increases linearly with the ratio of dielectric constants of the dispersed particles to that of the continuous phase; as the ratio becomes larger, contrary to the expectations from a simple dipole approximation, the modulus would saturate. In the case of conducting particles, the modulus varies with the frequency of the applied field. In a limiting case of perfectly conducting particles, the conductivity is also considered. It is found that the <span style=\"color:red\">particle-particle</span> forces are extremely sensitive to their separations from each other.","authors":[],"categoryName":"|","doi":"","fpage":"35","id":"14d6c9dc-9391-470d-9302-355f49b0175d","issue":"1","journal":{"abbrevTitle":"CP","id":"02aa296c-0853-4afe-a894-1be0ba396af5","issnPpub":"1009-1963","publisherId":"CP","title":"Chinese Physics"},"keywords":[{"id":"a2943cc4-fc92-4b89-bc96-0700b61a75bf","keyword":"electrorheological fluids;permittivity;conductivity;shear stress","originalKeyword":"electrorheological fluids;permittivity;conductivity;shear stress"}],"language":"en","publisherId":"1009-1963_2001_1_1","title":"Analysis of <span style=\"color:red\">particle-particle</span> forces in electrorheological fluids","volume":"10","year":"2001"},{"abstractinfo":"This paper presents a new method to determine the equivalent oxygen diffusivities of <span style=\"color:red\">particle</span> dispersed composites. This method can be used to design FGM thermal barrier systems with the function of oxygen barrier. A qualitative explanation of the oxidation of nickel with the increment of zirconia contents in the composite samples can be accepted by this method. The values of equivalent oxygen diffusivities obtained with this method are in excellent agreement with those from the EMT method for the composites with ZrO2 <span style=\"color:red\">particle</span> dispersed phase when the volume fractions of dispersed phase are lower than 25%.","authors":[{"authorName":"Mingwei LI","id":"0fb4bede-ce91-43d2-9916-70ecb1fc2c28","originalAuthorName":"Mingwei LI"},{"authorName":" Jingchuan ZHU","id":"3bb501e8-6a2e-46a9-83c2-a12dfd17acf6","originalAuthorName":" Jingchuan ZHU"},{"authorName":" Zhongda YIN","id":"c4d9abde-0434-4c14-b054-4f18f5d71332","originalAuthorName":" Zhongda YIN"},{"authorName":" Gang ZENG","id":"a265641b-cad1-401b-9e16-1df15e1998d8","originalAuthorName":" Gang ZENG"}],"categoryName":"|","doi":"","fpage":"416","id":"3d877e55-435e-4cfa-b9f9-2065dd015eb9","issue":"5","journal":{"abbrevTitle":"CLKXJSY","coverImgSrc":"journal/img/cover/JMST.jpg","id":"11","issnPpub":"1005-0302 ","publisherId":"CLKXJSY","title":"材料科学技术（英文）"},"keywords":[{"id":"ddd080c4-71ef-4a66-9291-448da7420a55","keyword":"Equivalent oxygen diffusivity","originalKeyword":"Equivalent oxygen diffusivity"},{"id":"2f6538aa-bce5-4235-aa5c-1164a28dcaad","keyword":"null","originalKeyword":"null"},{"id":"4bd67516-f4e4-458a-aa7e-bc18a5fbaa72","keyword":"null","originalKeyword":"null"}],"language":"en","publisherId":"1005-0302_2002_5_15","title":"Analysis of Equivalent Oxygen Diffusivity of <span style=\"color:red\">Particle</span> Dispersed Composites","volume":"18","year":"2002"},{"abstractinfo":"The influence of preparation parameters on the <span style=\"color:red\">particle</span> size of nanosized silicon (n-Si) produced by laser-induced chemical vapour deposition (LICVD) was studied. The optimum parameters for synthesizing the right sized n-Si have been obtained, and they are as follows. The power density of CO2 laser is 1500 W/cm(2). The silane (SiH4) concentration is 10 vol%. The dilution gas is argon of high purity. The flow rate of reactant gases is 100 seem. And the pressure of the reaction chamber is 200 Torr. The <span style=\"color:red\">particle</span> size of n-Si prepared by LICVD can be varied in the range from 10 to 100 nm depending on the selection of preparation parameters.","authors":[],"categoryName":"|","doi":"","fpage":"137","id":"25b84e2d-2546-49ba-b1d7-7bebf46a327c","issue":"42737","journal":{"abbrevTitle":"PBM","id":"b1289047-807c-4b57-bffc-a126ac2ffa2a","issnPpub":"0921-4526","publisherId":"PBM","title":"Physica B-Condensed Matter"},"keywords":[{"id":"36fa72c6-bdb0-47ff-91de-563f7e3584ad","keyword":"powders","originalKeyword":"powders"}],"language":"en","publisherId":"0921-4526_1996_42737_1","title":"Influence of preparation parameters on the <span style=\"color:red\">particle</span> size of nanosized silicon","volume":"225","year":"1996"},{"abstractinfo":"By incorporating the dislocation punched zone model, the Taylor-based nonlocal theory of plasticity, and the cohesive zone model into the axisymmetric unit cell model, an enhanced FEM model is proposed in this paper to investigate the <span style=\"color:red\">particle</span> size dependent flow strengthening and interface damage in the <span style=\"color:red\">particle</span> reinforced metal matrix composites. The dislocation punched zone around a <span style=\"color:red\">particle</span> in the composite matrix is defined to consider the effect of geometrically necessary dislocations developed through a mismatch in the coefficients of the thermal expansion. The Taylor-based nonlocal theory of plasticity is applied to account for the effect of plastic strain gradient which produces geometrically necessary dislocations due to the geometrical mismatch between the matrix and the <span style=\"color:red\">particle</span>. The cohesive zone model is used to consider the effect of interfacial debonding. Lloyd's experimental data are used to verify this enhanced FEM model. In order to demonstrate flow strengthening mechanisms of the present model, we present the computational results of other different models and evaluate the strengthening effects of those models by comparison. Finally, the limitations of present model are pointed out for further development. (C) 2010 Elsevier Ltd. All rights reserved.","authors":[],"categoryName":"|","doi":"","fpage":"39","id":"60b7cbae-99d0-4988-a156-c63ce618dd62","issue":"1","journal":{"abbrevTitle":"CSAT","id":"eca4e982-f087-435a-8926-3a2423eb119d","issnPpub":"0266-3538","publisherId":"CSAT","title":"Composites Science and Technology"},"keywords":[{"id":"10846f91-c246-4337-b5e0-5a7f694c3558","keyword":"<span style=\"color:red\">Particle</span>-reinforced composites;Debonding;Strength;Modeling;strain-gradient plasticity;conventional theory;behavior;deformation;aluminum;mechanisms","originalKeyword":"Particle-reinforced composites;Debonding;Strength;Modeling;strain-gradient plasticity;conventional theory;behavior;deformation;aluminum;mechanisms"}],"language":"en","publisherId":"0266-3538_2011_1_1","title":"An enhanced FEM model for <span style=\"color:red\">particle</span> size dependent flow strengthening and interface damage in <span style=\"color:red\">particle</span> reinforced metal matrix composites","volume":"71","year":"2011"},{"abstractinfo":"Sliding wear tests on SiC <span style=\"color:red\">particle</span> reinforced 2024 aluminium alloy composites fabricated by a powder metallurgy technique were carried out, and she effects of SiC <span style=\"color:red\">particle</span> content, size, and the wear load on the wear properties of the composites were systematically investigated. It was found that the weal resistance of the composites was about two orders of magnitude superior to that of the unreinforced matrix alloy, and increased with increasing SiC <span style=\"color:red\">particle</span> content and size. Under the conditions of sliding wear used, the effect of SiC <span style=\"color:red\">particle</span> size on the wear resistance was more significant than that of <span style=\"color:red\">particle</span> content. (C) 1996 The Institute of Materials.","authors":[],"categoryName":"|","doi":"","fpage":"751","id":"0f1a5519-9374-49bb-a561-e06ec8784db2","issue":"9","journal":{"abbrevTitle":"MSAT","id":"5c4ea523-f3ab-4618-9c21-537efff1d7fc","issnPpub":"0267-0836","publisherId":"MSAT","title":"Materials Science and Technology"},"keywords":[{"id":"a22615fb-10d0-4897-8e13-7352a8aadaf0","keyword":"matrix composites;tribological properties;fabrication","originalKeyword":"matrix composites;tribological properties;fabrication"}],"language":"en","publisherId":"0267-0836_1996_9_1","title":"Sliding wear behaviour of SiC <span style=\"color:red\">particle</span> reinforced 2024 aluminium alloy composites","volume":"12","year":"1996"},{"abstractinfo":"A theoretical analysis is presented to obtain gradient distribution of particles in centrifugal field, by which the <span style=\"color:red\">particle</span> distribution in gradient composite can be predicted. <span style=\"color:red\">Particle</span> movement in liquid is described and gradient distribution of particles in composite is calculated in a centrifugal field during the solidification. The factors which affect the <span style=\"color:red\">particle</span> distribution and its gradient are discussed in detail. The theoretical analysis indicates that a composite zone and a blank zone exist in gradient composite, which can be controlled to the outside or inside of the tubular composite by the density difference of <span style=\"color:red\">particle</span> and liquid metal. The comparison of the SiC <span style=\"color:red\">particle</span> distribution in Al matrix composite produced by centrifugal casting between the theory model and the experiment denotes that the theoretical analysis is reasonable.","authors":[],"categoryName":"|","doi":"","fpage":"1025","id":"dd2aa7d5-b087-4418-832f-91c3dbb2680a","issue":"6","journal":{"abbrevTitle":"MAMTBMAMPS","id":"1e3b53b7-9441-4ffb-b571-357d5a6a4f9b","issnPpub":"1073-5615","publisherId":"MAMTBMAMPS","title":"Metallurgical and Materials Transactions B-Process Metallurgy and Materials Processing Science"},"keywords":[{"id":"8d2cdb5e-e91f-46b3-aeaf-8b951f39b2ab","keyword":"metal-matrix composites","originalKeyword":"metal-matrix composites"}],"language":"en","publisherId":"1073-5615_1996_6_1","title":"Theoretical analysis of the <span style=\"color:red\">particle</span> gradient distribution in centrifugal field during solidification","volume":"27","year":"1996"},{"abstractinfo":"On the basis of the single-<span style=\"color:red\">particle</span> framework, a new theory on inclusion growth in metallurgical melts is developed to study the kinetics of inclusion growth on account of  reaction and collision. The studies show that the early growth of inclusion depends on reaction growth and Brawnian motion collision, and where the former is decisive, the late growth depends on turbulence collision and Stokes' collision, and where the former is dominant; collision growth is very quick during the smelting process, lessened in the refining process, but nearly negligible in the continuous casting process.","authors":[{"authorName":"B.W. Zhang ","id":"821967ac-2c74-4010-b1d6-d2d8d9b1443a","originalAuthorName":"B.W. Zhang "},{"authorName":"  B.W. Li","id":"0f657fd4-fd45-4770-94ba-c307966ba708","originalAuthorName":"  B.W. Li"}],"categoryName":"|","doi":"","fpage":"129","id":"ff978431-f827-48aa-a5c5-e5fb1470c8f9","issue":"2","journal":{"abbrevTitle":"JSXBYWB","coverImgSrc":"journal/img/cover/amse.jpg","id":"49","issnPpub":"1006-7191","publisherId":"JSXBYWB","title":"金属学报(英文版)"},"keywords":[{"id":"768f84d2-3488-4365-b504-f3938a8d8bad","keyword":"inclusion","originalKeyword":"inclusion"},{"id":"a27a3118-aeaf-49e7-825a-91d830fc6de4","keyword":"null","originalKeyword":"null"},{"id":"02ac1430-ec0f-4e08-a714-2037b373c0be","keyword":"null","originalKeyword":"null"},{"id":"2fa29a94-b991-4c88-bda5-cecbf6b72392","keyword":"null","originalKeyword":"null"}],"language":"en","publisherId":"1006-7191_2007_2_8","title":"Growth Kinetics of Single Inclusion <span style=\"color:red\">Particle</span> in Molten Melts","volume":"20","year":"2007"},{"abstractinfo":"Finite element analysis was performed to investigate the stresses within and around a soft hemispherical <span style=\"color:red\">particle</span> located on the surface of a hard matrix under a remote external tensile load. The purpose was to understand the effects of neodymium rich particles on the fatigue properties of Ti-55 alloy. Three case studies mere considered. First both <span style=\"color:red\">particle</span> and matrix mere perfect, second a crack existed within the <span style=\"color:red\">particle</span>, and third a crack was located in the matrix adjacent to the <span style=\"color:red\">particle</span>. Numerical results show that soft particles cause stress concentration in regions of the matrix adjacent to the <span style=\"color:red\">particle</span>, but that such stress concentrations are much weaker than those associated with a cavity. A crack within the <span style=\"color:red\">particle</span> increases the stress concentration in the matrix only a little when the crack is far from the interface. However, a crack in the matrix significantly increases local stress in the <span style=\"color:red\">particle</span>.","authors":[],"categoryName":"|","doi":"","fpage":"463","id":"f615e17f-edee-4b7c-a93a-2b41992af4ff","issue":"4","journal":{"abbrevTitle":"MSAT","id":"5c4ea523-f3ab-4618-9c21-537efff1d7fc","issnPpub":"0267-0836","publisherId":"MSAT","title":"Materials Science and Technology"},"keywords":[{"id":"b6a8a79f-cfa6-4908-bd23-2aecb09f79fa","keyword":"fatigue-crack initiation;finite-element;deformation;composites;alloy","originalKeyword":"fatigue-crack initiation;finite-element;deformation;composites;alloy"}],"language":"en","publisherId":"0267-0836_2000_4_2","title":"Effects of soft hemispherical <span style=\"color:red\">particle</span> on local surface stress of hard matrix","volume":"16","year":"2000"}],"totalpage":65,"totalrecord":650}