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Online since: July 2011
Authors: Jian Gong Yu, Jun Cai Ding, Jun Hong Liu
The influence of the piezoelectricity and piezomagnetism on the circumferential SH wave is investigated and the influential factors are analyzed.
Because the material properties vary in the thickness direction, the elastic constants of the medium are the function of thickness .
From these equations we can see that the influential factors of the piezoelectricity and piezomagnetism are similar.
Table 1 The material properties of the two materials Property C44 e24 q24 ∈11 Ba2TiO3 43 11.6 0 112 5 5.8 CoFe2O4 45.3 0 550 0.8 -590 5.3 Units: Cij(109N/m2),∈ij (10-10F/m2), eij (C/m), qij (N/Am), (10-6Ns2/C2),(kg/m3).
(b) The influential extent of the piezoelectricity and piezomagnetism on the SH wave in graded cylindrical plate can be easily affected by varying the gradient fields.
Because the material properties vary in the thickness direction, the elastic constants of the medium are the function of thickness .
From these equations we can see that the influential factors of the piezoelectricity and piezomagnetism are similar.
Table 1 The material properties of the two materials Property C44 e24 q24 ∈11 Ba2TiO3 43 11.6 0 112 5 5.8 CoFe2O4 45.3 0 550 0.8 -590 5.3 Units: Cij(109N/m2),∈ij (10-10F/m2), eij (C/m), qij (N/Am), (10-6Ns2/C2),(kg/m3).
(b) The influential extent of the piezoelectricity and piezomagnetism on the SH wave in graded cylindrical plate can be easily affected by varying the gradient fields.
Online since: July 2014
Authors: Shao Hong Xu, Zheng Zhou Wang
However, the particle size of the commonly used MP products is at the micro scale, and the addition of MP into polymers usually deteriorates mechanical properties of the filled polymers.
In hydrothermal or solvothermal synthesis, there are many factors affecting crystal growth and morphology, such as characteristics of reactants and reaction conditions [10,11].
In hydrothermal or solvothermal synthesis, there are many factors affecting crystal growth and morphology, such as characteristics of reactants and reaction conditions [10,11].
Coalescence Characteristics of Fusible Particles in Solderable Isotropic Conductive Adhesives (ICAs)
Online since: June 2008
Authors: Jung Hee Lee, Jin Woon Lee, Jong Min Kim, Seong Hyuk Lee
In general, ECAs are
conducted electrically by the mechanical contact between the conductive particles and the bonding
electrodes.
The material properties of resin and filler are listed in Table 1.
The contact angle of filler is taken as 35.4°, and Table 1: Material properties of resin and filler Densityρ [kg/m3] Viscosity, µ [Pa-s] Surface tension coefficient σ [ N/m] Resin 1200 0.38, 0.57, 0.19 0.45 Filler 7300 0.00181 0.45 (a) Initial state (b) µR = 0.57 at t = 6 ms Fig. 2 Simulation of filler coalescence (Vf = 45%).
Some larger particles through coalescence make even larger particles, whose size and behavior would be the main factors in ICAs applications.
In particular, it can be assured that resin viscosity is an important factor which can affect the coalescence characteristics.
The material properties of resin and filler are listed in Table 1.
The contact angle of filler is taken as 35.4°, and Table 1: Material properties of resin and filler Densityρ [kg/m3] Viscosity, µ [Pa-s] Surface tension coefficient σ [ N/m] Resin 1200 0.38, 0.57, 0.19 0.45 Filler 7300 0.00181 0.45 (a) Initial state (b) µR = 0.57 at t = 6 ms Fig. 2 Simulation of filler coalescence (Vf = 45%).
Some larger particles through coalescence make even larger particles, whose size and behavior would be the main factors in ICAs applications.
In particular, it can be assured that resin viscosity is an important factor which can affect the coalescence characteristics.
Online since: November 2011
Authors: Jian Hua Zhang, Qing Cai Su, Long Wei Yin, Mu Sen Li
China
4School of Mechanical Engineering, Shandong University, Jinan, P.
Introduction Synthetic boron-doped diamond crystal has not only high hardness, but also excellent optical, electrical, acoustic, thermal and chemical aspects of the properties, which are applied in mechanical, electronic, optical, military, aerospace, medical and other fields.
Catalyst is a key factors at the process of diamond synthesis, can promote diamond nucleation and growth.
The process of diamond synthesis may affect the shape of battens.
Properties, growth and applications of diamond.
Introduction Synthetic boron-doped diamond crystal has not only high hardness, but also excellent optical, electrical, acoustic, thermal and chemical aspects of the properties, which are applied in mechanical, electronic, optical, military, aerospace, medical and other fields.
Catalyst is a key factors at the process of diamond synthesis, can promote diamond nucleation and growth.
The process of diamond synthesis may affect the shape of battens.
Properties, growth and applications of diamond.
Online since: April 2014
Authors: Lei Sun, Yu Mei Wu, Li Jin Wu
As a result ,all domain nodes’ properties have to be described by function , results and outputs.
According to the variable’s related properties, and by searching fault mode libraries, variable failure modes are generated.
According to the properties of the variable nEx1553Cmd, we can determine the failure modes.
For example, nEx1553Cmd will check out all the failure mode of type int and according to the properties of M, failure mode can be determined .
Mechanical & Electrical Engineering Magazine. 2004, 21(3): 8-12
According to the variable’s related properties, and by searching fault mode libraries, variable failure modes are generated.
According to the properties of the variable nEx1553Cmd, we can determine the failure modes.
For example, nEx1553Cmd will check out all the failure mode of type int and according to the properties of M, failure mode can be determined .
Mechanical & Electrical Engineering Magazine. 2004, 21(3): 8-12
Online since: June 2022
Authors: Heba Sayed, Rehab Mahmoud, Hamdy F.M. Mohamed, Yasser Gaber, Nabila Shehata
They concluded that several factors do affect the maximum adsorption capacity and reaction kinetics such as the nature of the divalent and trivalent cations, their relative ratio, and the preparation method.
The equilibrium time is considered one of the important factors that affect the cost and applicability of the adsorption process.
Factors of the kinetic models for the adsorption of MO onto LDH.
Using different divalent cations with different ratios is one of the key factors affecting the properties and hence the performance of the resultant LDH nano-adsorbent.
Chang, Evaluation of mechanical properties of polymer concretes for the rapid repair of runways, Composites Part B: Engineering, 58 (2014) 352-360
The equilibrium time is considered one of the important factors that affect the cost and applicability of the adsorption process.
Factors of the kinetic models for the adsorption of MO onto LDH.
Using different divalent cations with different ratios is one of the key factors affecting the properties and hence the performance of the resultant LDH nano-adsorbent.
Chang, Evaluation of mechanical properties of polymer concretes for the rapid repair of runways, Composites Part B: Engineering, 58 (2014) 352-360
Online since: March 2017
Authors: Lukáš Hlubocký, Zdeněk Prošek
The increasing amount of waste micronized powder adversely affects the shrinkage of the cement composite.
Using high-speed mills, the marble sludge was milled under the assumption that it will become more workable and its properties will be improved.
· The content of micronized marble powder in the mixture affects the porosity of the material.
Other parameters that have to be addressed are mechanical properties such as compressive strength, tensile strength, the elastic modulus and properties related to the reinforcement of elements, e.g. the matrix consistency with reinforcement.
Yilmaz, Influence of marble and limestone dusts as additives on some mechanical properties of concrete.
Using high-speed mills, the marble sludge was milled under the assumption that it will become more workable and its properties will be improved.
· The content of micronized marble powder in the mixture affects the porosity of the material.
Other parameters that have to be addressed are mechanical properties such as compressive strength, tensile strength, the elastic modulus and properties related to the reinforcement of elements, e.g. the matrix consistency with reinforcement.
Yilmaz, Influence of marble and limestone dusts as additives on some mechanical properties of concrete.
Online since: September 2005
Authors: Xuan Yang Lei, Xi Geng Song, Jin Chen, Gui Cai Zhang, Guang Ming Dong
The Crack of Crankshaft
Due to the alternative impulsion load, mechanical fatigue or human misuse factor, cracks will be
present on the surface of crankshaft.
In this study, the stress intensity factors are applied and two new finite elements with °45 slant surface crack are developed.
Consider a shaft with given stiffness properties, radius is R .
In the same way, consider a rectangular cross-section beam with given stiffness properties, the width and the height of the cross section are w and h respectively.
Song: China Mechanical Engineering Vol. 14 (2003), p. 1466 [7] C.A.
In this study, the stress intensity factors are applied and two new finite elements with °45 slant surface crack are developed.
Consider a shaft with given stiffness properties, radius is R .
In the same way, consider a rectangular cross-section beam with given stiffness properties, the width and the height of the cross section are w and h respectively.
Song: China Mechanical Engineering Vol. 14 (2003), p. 1466 [7] C.A.
Online since: February 2007
Authors: He Ping Zhou, Liang Qiao, Wen Hui Duan, Ke Pi Chen, Bing Lin Gu, Xiao Wen Zhang
A degree of [001] texture (Lotgering factor ~
0.38) was obtained by heteroepitaxial growth of oriented single PMN-PT on the SrTiO3 template
particles.
However, single crystals are relatively expensive and compositional heterogeneity in grown single crystals adversely affects properties [3].
Textured ceramics are expected to provide improved properties with lower processing costs [4].
Degrees of orientation were evaluated in terms of the Lotgering's factor, )1/()( 0 0 pppf −−= , where ∑ ∑= )()00( / hkl h IIp for {100} oriented textures and )0(0 == fpP for randomly oriented polycrystals [8].
A degree of [001] texture (Lotgering factor ~0.38) was obtained by heteroepitaxial growth of oriented single PMN-PT on the SrTiO3 template particles.
However, single crystals are relatively expensive and compositional heterogeneity in grown single crystals adversely affects properties [3].
Textured ceramics are expected to provide improved properties with lower processing costs [4].
Degrees of orientation were evaluated in terms of the Lotgering's factor, )1/()( 0 0 pppf −−= , where ∑ ∑= )()00( / hkl h IIp for {100} oriented textures and )0(0 == fpP for randomly oriented polycrystals [8].
A degree of [001] texture (Lotgering factor ~0.38) was obtained by heteroepitaxial growth of oriented single PMN-PT on the SrTiO3 template particles.
Online since: September 2016
Authors: Xiao Zhang, Yu Feng Zhou, Xian Shuai Chen, Ya Ling Wang, Lei Liu
The reliability of an implanted system lies mainly in two factors: the force bearing capacity and the fatigue resistance during continuous bites.
It have many which effect of dental implant factors of long-term stable and reliable.
Implant System apply material properties of Ti6Al4V, besides, crown apply material properties of zirconia.
Material Properties Material The young's modulus (E,GPa) Poisson's ratio (V) Cortical bone 14 0.30[6] Cancellous bone 3 0.30[6] Ti6A14V 110 0.35[7] Zirconia 70 0.28[7] Fig. 2.
Investigation of Fatigue Properties and Fatigue Design Diagram of Titanium alloy Ti-6A1-4V.
It have many which effect of dental implant factors of long-term stable and reliable.
Implant System apply material properties of Ti6Al4V, besides, crown apply material properties of zirconia.
Material Properties Material The young's modulus (E,GPa) Poisson's ratio (V) Cortical bone 14 0.30[6] Cancellous bone 3 0.30[6] Ti6A14V 110 0.35[7] Zirconia 70 0.28[7] Fig. 2.
Investigation of Fatigue Properties and Fatigue Design Diagram of Titanium alloy Ti-6A1-4V.