RESEARCH ON MECHANICAL PROPERTIES OF QUATERNARY SEDIMENTS DISTRIBUTED IN HANOI AREA UNDER DYNAMIC LOADS
RESEARCH ON MECHANICAL PROPERTIES OF QUATERNARY SEDIMENTS DISTRIBUTED IN HANOI AREA UNDER DYNAMIC LOADS
... the dynamical properties of these soils are not sufficient for the research, planning, designing and constructing of building foundation Therefore, research on mechanical properties of quaternary ... sediments distributing in the Hanoi area under dynamic loads is urgent and topical Objectives Determining the soil dynamical properties, including strength and def...
Ngày tải lên: 25/05/2016, 15:17
Processing and mechanical properties of pure mg and in situ aln reinforced mg 5al composite 1
... mechanochemical milling Synthesis of Mg- 5wt%Al reinforced with 1wt% of in- situ formed AlN via mechanical milling and power metallurgy techniques Study of microstructures and mechanical properties of Mg MMCs ... combination of strength and ductility of the nc Mg composite Introduction Grain refinement, reinforcement particles, dislocation and solid sol...
Ngày tải lên: 14/09/2015, 14:10
Processing and mechanical properties of pure mg and in situ aln reinforced mg 5al composite 2
... recovery during milling was confirmed by the corresponding low internal strain The internal strain during milling showed inverse grain size dependence Absence of dislocations within the grains of as ... Crystalline Grain boundary Triple line Quadruple node Intercrystalline 0.6 0.4 0 .2 0.0 10 100 1000 G rain S ize (nm ) Figure 2. 6 Plot of volume fractions of crystalline and inter...
Ngày tải lên: 14/09/2015, 14:10
Processing and mechanical properties of pure mg and in situ aln reinforced mg 5al composite 3
... JIM 34 (19 93) 952-959 Y Ogino, S Murayama, T Yamasaki, J Less-Common Met 168 (1991) 221- 235 67 In- situ formation of Aluminium Nitride composite powder 27 28 29 30 31 32 33 34 35 36 37 38 39 40 ... evidence of weak and broad AlN peaks The proportion of AlN in the powder increased with further milling Higher and distinct AlN peaks indicating higher 51 In-...
Ngày tải lên: 14/09/2015, 14:10
Processing and mechanical properties of pure mg and in situ aln reinforced mg 5al composite 4
... resistivity of Mg- 5Al- 1AlN composite sample and pure Mg samples 4. 3.3 Thermal properties From Table 4. 3 and Fig 4. 8, the same trend of αc and Mg is observed for both composite and pure Mg samples Milling ... as AlN and in- situ formed Al1 2Mg1 7, MgH2, MgAl2O4, and MgO during sintering and extrusion Such stable grain structure with no grain gro...
Ngày tải lên: 14/09/2015, 14:10
Processing and mechanical properties of pure mg and in situ aln reinforced mg 5al composite 5
... [ 15] and Wang et al [ 35] A ctivation v o lum e (b ) 300 Mg- 5Al- 1AlN Mg 30 40 250 200 150 100 50 0 10 20 M illing du ratio n (h) Figure 5. 8 Apparent activation volume of composite and pure Mg ... Fig 5. 5 and Table 5. 2, as in the composite samples, 0h-MMed samples show similar ductility of 8-10% and yield stress ranging from 122 to 138 MPa indicating insign...
Ngày tải lên: 14/09/2015, 14:11
Processing and mechanical properties of pure mg and in situ aln reinforced mg 5al composite 6
... fraction of second phase constituents, since the Mg grain size is in nanoscale and thus less likely for the reinforcement and in- situ formed particles to exist in the interior of the Mg grain, this ... meaning defined previously Using the parameters for Mg in Table 6. 2, a theoretical value of Dgb is predicted to be 3.7410-28 m2 s-1 However, Qgb value in Table 6...
Ngày tải lên: 14/09/2015, 14:11
Processing and mechanical properties of pure mg and in situ aln reinforced mg 5al composite 7
... 40h-MMed pure Mg samples This finding implies that the grain refinement to a certain length scale diminishes the significance of solid solution strengthening and dispersion hardening 30hMMed composite ... examination can be performed on the pure Mg samples to confirm the diminishing effect of reinforcements (insitu formed second phase particles and/ or ex -situ reinforcement...
Ngày tải lên: 14/09/2015, 14:11
Báo cáo sinh học: "Research Article A Note on Symmetric Properties of the Twisted q-Bernoulli Polynomials and the Twisted Generalized q-Bernoulli Polynomials" docx
... numbers and its derivatives,” Journal of Mathematical Analysis and Applications, vol 339, no 1, pp 598–608, 2008 13 T Kim, On the analogs of Euler numbers and polynomials associated with p-adic ... generalized twisted Bernoulli numbers and polynomials of higher order,” Journal of Computational Analysis and Applications, vol 12, pp 695–702, 2010 27 T Kim, On a q...
Ngày tải lên: 21/06/2014, 16:20
Research report: "To study the effect of substituents on the properties of aniline by the method of approximate quantum AM1" pps
... Correlation of the dipole moment with the Hammett constants of the substituents It is evident from the table II that electron-donating substituents on the phenyl ring increase the pKa of anilines ... Correlation of QN with the Hammett constants of the substituents According to the table 2, electron-donating substituents decrease the dipole moment of c...
Ngày tải lên: 23/07/2014, 13:21
Báo cáo vật lý: "Using of HPLC Analysis for Evaluation of Residual Monomer Content in Denture Base Material and Their Effect on Mechanical Properties" pptx
... sample of PMMA for self-cure denture base material HPLC Analysis for Evaluation 132 Table 1: The results of MMA content of denture base materials compared with ISO standard Denture base material ... properties of denture base material related to the effect of level of residual monomer, and concluded that the percentage of higher levels o...
Ngày tải lên: 07/08/2014, 14:20
Báo cáo vật lý: "Comparison of the Effects of Organoclay Loading on the Curing and Mechanical Properties of Organoclay-Filled Epoxidised Natural Rubber Nanocomposites and Organoclay-Filled Natural Rubber Nanocomposites" pot
... 2009 39 Therefore, the major aim of this work was to compare the curing characteristics and mechanical properties of organoclay- filled epoxidised natural rubber (ENR 50) nanocomposites and organoclay- filled ... agglomeration of organoclays All these observations are in concordance with the XRD patterns and confirmed a better dispersion of the organocla...
Ngày tải lên: 07/08/2014, 14:20
Báo cáo lâm nghiệp:"Influence of basic density and temperature on mechanical properties perpendicular to grain of ten wood tropical species" pot
... and amplitude of the softening behaviour are affected by them These observations lead to the focus on one mechanical test to study the softening behaviour and one criterion Compression test and ... suggested to measure softening temperature on graphs The curves of criterion in function of temperature were 56 S Bardet et al Figure Evolution of ey, gR (°) and df...
Ngày tải lên: 08/08/2014, 01:21
Experimental investigation for powder reinforcement effect on mechanical properties and natural frequency of isotropic hyper composite plate with various boundary conditions
... 70 Table Experimental natural frequency results for isotropic hyper composite plate with different reinforcements short fiber and powder effect for various boundary conditions plate, with AR=1 ... 1316.2 Table Experimental natural frequency results for isotropic hyper composite plate with different reinforcements short fiber and powder...
Ngày tải lên: 09/09/2015, 10:06