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Experiments using Aglient pricision impedance tester measured samples’ capacitance, dielectric loss and resonant frequency, and then calculated the mechanical quality factor(Qm) and electromechanical coupling coefficient(Kp).
Elements Bi and Fe impact on the piezoelectric properties of KNN-based piezoelectric ceramics.
Electromechanical coupling coeffcient is a comprehensive parameter reflection properties of piezoelectric ceramics and it is an important physical quantity to measute quality of piezoelectric properties, So comparison images of figure 3 and 4 can be found that the trend of d33 is consistent with Kp.
Changes in εr affected by grain boundarys and grain phase structures.
Conclusion By observing the microstructure and a number of performance of ceramics known that the content of bismuth and iron is different, structure and properties of ceramics are different.

Moreover, mechanical properties, temperature effect, fatigue, etc, must be considered in the design stage.
Therefore, the can has to be selected as thin as possible within the limits of mechanical strength.
But by artificially increasing the mass scaling factor, the corresponding inertial forces will affect the mechanical response and provide unrealistic dynamic results.
To ensure that the inertial effects due to mass scaling do not significantly affect the simulation results, the kinetic energy of the can should be no greater than 10% of its internal energy during most time of the assembly process [7].
Finally, a mass scaling factor of 4 has been applied.

Many studies focusing on the mechanical properties of Ni3V compound have been reported [4-7], but the details are not enough elucidated yet.
Therefore, even if there was an unevenness of the volume fraction of the three variants in the heat-treated specimens, the influence of them on the mechanical properties could be minimaized at this loading orientation.
The difference of the microstructure strongly influenced on the mechanical properties.
The control of variant microstructure is therefore essential to gain the suitable mechanical properties of the alloys.
Conclusions In this study, the control of microstructure in Ni3V single crystals was attempted by annealing at 1473K in disordered state followed by quenching and subsequent annealing, and their mechanical properties were examined by compression tests.

In addition, its mechanical strength, electrical properties, resistance to radiation, oxidation, corrosion, flame and excellent performance.
Select products must be considered filler performance, molding process and the cost of several factors.
The sheet was not a good dielectric strength and low thermal conductivity, also has good bending properties.
To do in the glass filler system, the glass can have good acid resistance and to improve its electrical properties.
Quartz powder has a lower thermal expansion and good electrical insulation properties, can improve the dimensional stability and thermal conductivity products, and improve the dielectric properties.

These factors contribute differently towards the peak magnitude of the compressive and tensile stresses in the material.
Microstructure and Mechanical Properties.
Mechanical properties were studied by using standard 12.5 mm round tension test specimen with 62.5 mm gauge length.
The entire die forged specimens qualified the mechanical properties such as tensile strength, yield strength and hardness.
Effect of cold compression deformation on the mechanical properties of die forged disc.

All the current CPCs are reported to have good mechanical properties and reasonable setting times.
A A The mechanical properties of biomaterials depend of a number of factors.
The mechanical properties of these reticulated polymers were compared with their swelling capacity.
These materials present rather low intrinsic primary mechanical properties.
However this study cannot confirm that the mechanical properties of sound bone were reestablished.

The paper studies the vibration transmitted by a mechanical oscillating system to its fixing device.
However, the real constraints are made by means of bodies which are also elastic, so that the studied system (the principal sub-system) is part of a system with supplementary degrees of freedom, whose vibratory behavior is affected by the mechanical characteristics of the fixing device (fixing sub-system).
At the same time, the studied mechanical system transmits vibrations to the fixing device.
The ratio , plotted in Figure 7, tends to become constant for perturbation frequencies lower than 30 Hz, which validates the property found in the previous paragraph.
Graham Kelly, Mechanical Vibrations: Theory and Application, Cengage Learning, USA, 2012.

Introduction The polymer of PP and PET is interesting because many of their properties are different.
The MB webs from this polymer pair exhibited enhanced barrier properties.
Due to this stability, these bico MB webs keep their original properties, unaffected up to 155℃[1].
MB nonwovens are noise-absorbing materials that are ease of processing, good mechanical properties, and chemical inertness.
Isolation of experimental factors is difficult because of highly variable interaction.

In such a system, the separation of the up-slope and down-slope rows of piles is a key factor that impacts the distribution of their internal forces.
As a result, the comprehensive mechanical effect of double piles tends to worsen.
Furthermore, the row separation will greatly impact the mechanical function of the slope body between the double piles, and consequently will affect the pressure exerted on the double piles by the mass of the slide.
Both of these are closely related to the shape of the slip surface and the properties of the slope body.
In this case, the comprehensive mechanical effect of the double pile system tends to weaken the slope.

Monofunctional monomer has only one active group with lower molecular weight and viscosity properties, which also has the strongest dilution, low curing speed and toxicity.
It has good dilution effects and curing speed which help to improve the physical and mechanical properties and corrosion resistance of cured film[3].
The method of uniform design was used to configure the based ink tests and D95 particle size was regarded as an index.There are a total of three factors.
The monomer factors have 12 levels, as shown in Tab.2.
Since each of these factors will have an impact on the experimental results.