Atomistic simulations of the mechanical properties of nanocrystalline copper at room temperature
Atomistic simulations of the mechanical properties of nanocrystalline copper at room temperature
... simulations of mechanical properties of nanocrystalline copper on the basis of two reasons Firstly, there are lots of experimental data available on the mechanical deformation of nanocrystalline copper ... levels (a) the atomic configuration at 0% strain; (b) the atomic configuration at 4.4% strain; (c) the relative displacement of the atomic motion in the x-direction to the uniform deformation at 4.4% ... nm at different deformation stages (a) the atomic configuration before deformation; (b) the atomic configuration at 9.6% deformation; (c) the relative displacement of the atomic motion in the...
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Atomistic calculations of the mechanical properties cu sn intermetallic compounds
... properties of Cu- Sn intermetallic compounds Density Functional Theory (DFT) calculations are performed with the intermetallic compounds Cu3 Sn and Cu6 Sn5 to obtain the elastic properties of these ... performed to obtain the mechanical properties of Cu6 Sn5 and Cu3 Sn with computational methods 1.4 OUTLINE OF THE THESIS Calculations to predict the Young’s Modulus of Cu6 Sn5 and Cu3 Sn using Density ... fracture of Cu6 Sn5 1.4 Outline of the thesis Having described the intermetallic compounds and their importance to the performance of the solder joint, this thesis will describe calculations...
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Báo cáo y học: "Changes in the mechanical properties of the respiratory system during the development of interstitial lung edema" ppt
... pulmonary edema[20] Therefore, this study provides the first data concerning modifications in the overall mechanical properties of the respiratory system in vivo during interstitial lung edema ... integration of the flow signal was removed by estimating the linear trend on the integrated signal and removing it from the recording The frequency response of the measuring systems was assessed by using ... evaluated the changes in mechanical properties of the respiratory system after inducing pulmonary congestion[3,4] or severe lung edema [5-9], but no measurements were reported in the condition of interstitial...
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Characterization of the mechanical properties of visco elastic and visco elastic plastic materials by nanoindentation tests
... References 187 VII Summary The feasibility and efficiency of characterizing the mechanical properties of viscoelastic and visco- elastic- plastic materials and their thin films by using nanoindentation techniques ... with the elastic and plastic properties, the visco- elastic and visco- elastic- plastic properties are more difficult to characterize by nanoindentation techniques due to the complexity of the constitutive ... mechanical properties of visco- elastic and visco- elastic- plastic materials and their thin films with nanoindentation techniques Two typical groups of visco- elastic- (plastic) materials and structures,...
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A study of the mechanical properties of indium phosphide (inp) based mems structures
... characterizing InP based MEMS structures and analysing its properties The major properties widely realized are the mechanical and the optical properties Mechanical characterization include beam ... were fabricated Micro-cantilevers are one of the fundamental test specimens Cantilevers based on InP, AlGaAs and GaAs material systems are the popular ones The characterization of fabricated micro-beams ... A STUDY OF THE MECHANICAL PROPERTIES OF INDIUM PHOSPHIDE (InP) BASED MEMS STRUCTURES BY MAHADEVAIAH GOPAL (Dip, B.Eng) A THESIS SUBMITTED FOR THE DEGREE OF MASTER OF ENGINEERING DEPARTMENT OF...
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Báo cáo hóa học: " Cohesive strength of nanocrystalline ZnO:Ga thin films deposited at room temperature" pptx
... displays Thin Solid Films 2004, 460:156 doi:10.1186/1556-276X-6-309 Cite this article as: Samantilleke et al.: Cohesive strength of nanocrystalline ZnO:Ga thin films deposited at room temperature ... Fortunato E, Gonçalves A, Assunção V, Marques A, Águas H, Pereira L, Ferreira I, Martins R: Growth of ZnO:Ga thin films at room temperature on polymeric substrates: thickness dependence Thin Solid ... (3/2)ℓsat is the critical length and ℓsat is the experimental mean fragment length at saturation, which is also the inverse of the crack density at saturation [14] As shown in Figure 4a, the GZO coatings...
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Báo cáo hóa học: " Anodization of nanoporous alumina on impurityinduced hemisphere curved surface of aluminum at room temperature" pptx
... two-step anodization (a) Joule heat caused by impurity, (b) difference of grow rate, (c) removal of all porous alumina, and (d) the second anodization Compared to the anodization of the flat Al ... Mater 2002, 11:1349 doi:10.1186/1556-276X-6-596 Cite this article as: Chung et al.: Anodization of nanoporous alumina on impurity-induced hemisphere curved surface of aluminum at room temperature ... anodization, porous aluminas are formed on the hemisphere curved surface along the normal vectors, as shown in Figure 4d Figure Schematic procedure of hemisphere curved surface formation through...
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Báo cáo hóa học: " Direct synthesis of ultrafine tetragonal BaTiO3 nanoparticles at room temperature" pptx
... the ultrafine BaTiO3 nanoparticles will be done in the future Conclusion A large quantity of tetragonal BaTiO3 nanoparticles as fine as nm was directly synthesized at room temperature The synthesis ... modeling of aqueous and hydrothermal synthesis of barium titanate (BaTiO3) Chem Mater 2005, 17:5346-5356 doi:10.1186/1556-276X-6-466 Cite this article as: Qi et al.: Direct synthesis of ultrafine tetragonal ... template synthesis and characterization of BaTiO3 and PbTiO3 nanotubes Chem Mater 2002, 14:480 Perez-Maqueda LA, Dianez MJ, Gotor FJ, Sayagues MJ, Real C, Criado JM: Synthesis of needle-like BaTiO3...
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Preparation and characterization of tio2 nanotube arrays via anodization of titanium films deposited on FTO conducting glass at room temperature
... low oxygen contamination level (below 1%) Fig.2 depicts FESEM images of TiO2 nanotube arrays via anodization of titanium films deposited at different conditions in 0.5% (w) HF solution at 10 V When ... dissolution rate to increase the thickness-conversion ratio of Ti film In this study, we attempt to deposit compact and uniform Ti films on conducting glass at room temperature, and then fabricate ... Results and discussion 2.1 Characterization of titanium films deposited at room temperature The atom deposition process can be divided into three steps, namely the gas phase atom′s deposition or...
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Tài liệu MECHANICAL PROPERTIES OF THE HEART AND ITS INTERACTION WITH THE VASCULAR SYSTEM ppt
... range of conditions The goal of this manuscript is to provide a detailed understanding of the heart as a muscular pump and of the interaction between the heart and the vasculature The concepts of ... Cardiac Physiology Page of 23 MECHANICAL PROPERTIES OF THE HEART AND ITS INTERACTION WITH THE VASCULAR SYSTEM Daniel Burkhoff MD PhD, Associate Professor of Medicine, Columbia University ... contraction process of the cardiac muscles and the properties of the arterial system and is beyond the scope of this lecture As the contraction process of the cardiac muscle reaches its maximal effort,...
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The composition dependent mechanical properties of ge si core–shell nanowires
... distribution of the strain around the interface somehow correlates with the composition of the core–shell nanowire These aspects are reflected in the averaged bond lengths of Si Si, Ge Ge and Si Ge varying ... Composition 0.8 1.0 0.4 0.6 Composition 0.8 1.0 2.50 Si Si Ge Ge Ge Si Bond length (Ang) 2.45 2.40 2.35 3047 composition in Si- core /Ge- shell nanowires, but increase with increasing the composition ... Variation of averaged bond lengths of Si Si, Si Ge and Ge Ge in (a) Si- core /Ge- shell and (b) Si- core /Ge- shell nanowires as a function of composition Summary In summary, we calculate Young’s modulus of...
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The Estimation of Mechanical Properties of Polymers from Molecular Structure ppt
... nB is the number of bonds; N, Avogadro's number; l,, the length of the repeat unit; and V, the molar volume The theoretical brittle stress is then the number of bonds times the strength of an ... dependence of a polymer is strongly related to the entanglement molecular weight Above 2Me, the viscosity of the melt increases as the 3.4 power of the molecular weight In the glass, the mechanical ... can be calculated from only four basic molecular properties These are the molecular weight, van der Waals volume, length of the repeat unit, and the Tgof the polymer Since these properties are based...
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Mechanical properties of nanocrystalline materials ppt
... novel properties [11] Keeping this incentive in mind, the purpose of this paper is to provide an overview of the basic understanding of the mechanical properties of these materials A number of techniques ... in nanocrystalline materials Softening of nanocrystalline metals at very small grain sizes On the inverse Hall–Petch relationship in nanocrystalline materials On the grain size softening in nanocrystalline ... to experiments? Structure and mechanical behavior of bulk nanocrystalline materials Mechanical behavior of nanocrystalline metals 430 M.A Meyers et al / Progress in Materials Science 51 (2006)...
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báo cáo hóa học:" Alendronate (ALN) combined with Osteoprotegerin (OPG) significantly improves mechanical properties of long bone than the single use of ALN or OPG in the ovariectomized rats" pdf
... properties in addition to the bone mass Since the mechanical testing is the current golden standard for accessing bone quality, the data suggested that the combined use of OPG- Fc and ALN in the ... with Osteoprotegerin (OPG) significantly improves mechanical properties of long bone than the single use of ALN or OPG in the ovariectomized rats Journal of Orthopaedic Surgery and Research 2011 ... pathway, thereby inhibiting RANKL expression [2] Our in vitro data indicated that the combined use of ALN and OPG had greater inhibitory effect on osteoclastogenesis than the use of OPG and ALN alone...
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báo cáo hóa học:" Alendronate (ALN) combined with Osteoprotegerin (OPG) significantly improves mechanical properties of long bone than the single use of ALN or OPG in the ovariectomized rats" pot
... properties in addition to the bone mass Since the mechanical testing is the current golden standard for accessing bone quality, the data suggested that the combined use of OPG- Fc and ALN in the ... with Osteoprotegerin (OPG) significantly improves mechanical properties of long bone than the single use of ALN or OPG in the ovariectomized rats Journal of Orthopaedic Surgery and Research 2011 ... pathway, thereby inhibiting RANKL expression [2] Our in vitro data indicated that the combined use of ALN and OPG had greater inhibitory effect on osteoclastogenesis than the use of OPG and ALN alone...
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