Characterization of interfacial mechanical properties using wedge indentation method 1

... 11 1 4.4.5 Work of Indentation and Fracture Energy 11 2 4.5 Conclusion Reference Chapter 5: Comparison of the Finite Element Simulation and Experiments of Wedge Indentation Test 11 8 12 0 12 3 5 .1 ... Mater Res., 12 , p .19 00 -19 10, (19 97) 11 M.D Drory and J.W Hutchinson, Science, 263, p .17 53 -17 55, (19 94) 12 M.D Drory and J.W Hutchinson, Proc R Soc London, Ser A, 452, p.2 319 23 41, (19 96) 13 M.R Elizalde, ... 16 0 7 .1 Correlation Study on RuO2/Si System 16 1 7.2 Interfacial Toughness of RuO2/Si System 16 4 7.3 Conclusion 16 8 Reference Chapter 8: Summary, Conclusions and Recommendations 17 0 17 1 8 .1 Interfacial...

Characterization of interfacial mechanical properties using wedge indentation method 2

... middle of th wedge im m he mpression), and the FE ESEM plane view (Fig.4.4(a)) sho only e ows a central cra at this lo ack oad Fig F 4.3: Cr ross-section views o 120 ° wedge indenta nal of ations ... oad Fig F 4.3: Cr ross-section views o 120 ° wedge indenta nal of ations on th MSQ/Si system he i using FIB: ( no interf u (a) facial crack; (b) – (d) in nterfacial cr rack propag gation [1] 68...

Characterization of interfacial mechanical properties using wedge indentation method 5

... characterize the interfacial adhesion properties (e.g interfacial energy and interfacial strength), the interfacial cracking pattern is of particular interest The wedge and the conical indentation methods ... the interfacial crack front was found to be parallel to the length axis of the wedge indentation impression on the 200 nm BD film, and a curved interfacial crack front was found for the wedge indentation ... the indentation- fracture correlation Fig 4.7 shows the nanoindentation Ph curves for 50 0 nm BD film The indentations are made with increasing maximum indentation load, Pmax from to 10 mN using...

Characterization of interfacial mechanical properties using wedge indentation method 6

... Curvature of interfaci crack front determ ial fr mined for t BD film with the ms thickness t anging from 100 to 100 m 00nm [2] 90 Chapter C Fig F 4. 16: FESEM plan ne-view ima ages of the wedge inden ... tionship bet tween the cu urvature of crack front and the f t film thickne As can be seen i Fig.4. 16( for a B film ≤ 100 nm th f ess n in (a), BD hick, the interfacial c i crack front is very ... contrast, w when the BD film B thickness is increased t about 500 nm or mor (Fig.4. 16 and 4. 16( d)), the cu t to re 6( c) urvature reaches a pl r lateau at ab bout 0.51 µm-1 (Fig.4.1 and the delaminati...

Characterization of interfacial mechanical properties using wedge indentation method 8

... 2.69 8. 88 ± 0.99 6. 18 ± 0.94 30.60 ± 13.93 t2A 54.21 ± 12.54 52.50 ± 6. 78 12.59 ± 2.17 t2B 40.26 ± 13.53 53. 18 ± 18. 59 6.15 ± 1 .87 t2C 84 .15 ± 65.05 78. 01 ± 72.34 8. 48 ± 4.22 S2A 6.57 ± 1 .82 7.93 ... (nm) Indentation induced stress, (MPa) Critical buckling stress, c (MPa) Interfacial toughness, Γi (J/m2) 1.44 26.0 401.10 88 62. 58 0.049 1.31 24.4 388 .24 107 08. 84 0.046 1.45 25.4 380 .10 87 40.76 ... 21.6 395 .83 9791. 38 0.053 1.13 19.4 387 .09 14392.24 0.045 1. 18 20.1 397.90 131 98. 40 0.0 48 1.16 19.9 396 .82 13657.44 0.0 48 166 Chapter Table 7.3: Calculations of the interfacial toughness of the...

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,...

Sensory characterization of dry-cured ham using free-choice profiling

... Consensus space obtained using Generalised Procrustes Analysis over the sensory consumer proﬁle of dry-cured ham (the letters represent the dry-cured ham samples) The size of each descriptor is ... the consumer sensory description of dry-cured ham depends on the geographical region where the consumer lives Trained assessors and consumers describe sensory attributes of dry-cured ham in a similar ... experience in sensory analysis, were selected To avoid the effect of storage time on the sensory properties of dry-cured ham, sensory evaluation of the samples was carried out in all three cities in the...

Báo cáo khoa học: Characterization of heme-binding properties of Paracoccus denitriﬁcans Surf1 proteins doc

... presence of CtaB and CtaA, con- Fig Gel electrophoresis of purified Paracoccus denitrificans Surf1 mutant proteins Coomassie Brilliant Blue-stained 12% SDS ⁄ polyacrylamide gel of Surf1 mutant proteins ... binding in Surf1 Fig Heme analysis of Surf1c W200F and Surf1q W209F Pyridine hemochromogen redox spectra of 20 lM Surf1 mutant proteins (A) and HPLC analysis of heme extracts derived from Surf1c ... purification of Surf1 Heterologous expression of apo -Surf1 in E coli was performed in the absence of the Paracoccus heme a-synthesizing machinery as described previously [16] Expression of Surf1 proteins...

Báo cáo lâm nghiệp:"Predicting of oak wood properties using X-ray inspection: representation, homogenisation and localisation. Part II: Computation of macroscopic properties and microscopic stress fields" pdf

... homogenisation: Part II of this paper is devoted to the calculation of the macroscopic properties and the determination of the microscopic stress fields that result from the macroscopic configuration microscopic ... shrinkage in the latewood part of softwood to be understood, and even predicted Indeed, due to the heterogeneity, some parts of the REV that have high (low) shrinkage values will undergo microscopic tensile ... É., Perré P., Predicting Oak Wood Properties using X-ray Inspection: Representation, Homogenisation and Localisation Part I: Digital X-ray imaging and representation by Finite Elements, Ann For...

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...

Biomechanical characterization of dental composite restoratives a micro indentation approach

... Literature Review 2.1 Mechanical Characterization of Resin-based Dental Materials 2.1.1 Introduction 2.1.2 Dental composite restoratives and their characterization 2.1.3 Clinical relevance of material ... the mechanical characterization of resin-based dental composite restoratives Micro- indentation can be arbitrarily defined as an indent which has diagonal length of less than 100 µm (Samuels, ... fundamental mechanical properties namely hardness, modulus, strength and fracture toughness of dental composite restoratives A customized indentation head that was capable of measuring the load and...

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...

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...

CHARACTERIZATION OF MYCOBACTERIAL ESTRASES LIPASES USING COMBINED BIOCHEMICAL AND COMPUTATIONAL ENZYMOLOGY

... structural features of mycobacterial putative esterases /lipases and distinguishing lipolytic and non-lipolytic enzymes at the structural level itself In vitro biochemical characterization of Mycobacterial ... the whole ligand binding pocket and also allow for rotation and translation of ligands The schematics of computational docking are shown in fig.2.2 36 Figure 2.2: Schematic diagram of Computational ... (Rv1076), lipY (Rv3097c) and are of high functional importance 1.5 Issues and Problems with functional Mycobacterial putative Esterases /Lipases characterization of A literature survey of the studies conducted...

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