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Dielectric properties were characterized using impedance spectroscopic.
Both properties are important in lowering the operating voltage for OFET devices.
Results and Discussion Dielectric Properties.
Jiang, Mechanical and dielectric properties of porous Si3N4 ceramics using PMMA as pore former, Ceramics International.37 (2011) 3775-3779
Qi, Mechanical and dielectric properties of porous Si3N4-SiO2 composite ceramics, Mater.

The results showed that the larger induction reheating power of the billet, the smaller the grain size of its microstructure and the higher surface hardness and the better mechanical properties of its thixoforming sample.
To compare the microstructure and mechanical properties of the thixoforming samples under different heating power in a lateral direction, the parameters should be kept the same during the thixoforming.
Measurement of mechanical properties.
Mechanical properties.
Among the many factors affecting the intensity and plasticity of the material, the role the grain size played a very important role.

The advantage of orthogonal experiment is that the effects of each factor and their range on the results can be differentiated when all the factors varying simultaneously.
The functional properties of tourmaline were not affected by modifying with TiO2.
In addition, the pigment properties were added compared with tourmaline.
Comparing the properties of TTCPM with that of tourmaline, the releasing negative ions quantity were the same, the whiteness increased remarkably, and the pigment properties such as hiding power, were added.
The excellent properties of TTCPM were proved by the paint tests.

Existing research on machined surface topography, only consider its response to vibration or wear certain factors, both vibration and wear impact on machined surface topography exist ambiguity and uncertainty, it cannot solve the design conflicts of machined surface topography.
Present study on machined surface topography[2,3], only consider tool vibration or wear certain factor affecting machined surface topography[4], found that amplitude is the most sensitive factor affects surface residual height[5], with blade wear contour become not clear gradually, surface residual height increases[6,7], face milling process is chip breaking cutting, cutting process is accompanied by vibration and wear, machined surface topography is characterized by the behavior of cutting tool on machined surface mapping, considering the influence of machined surface topography under the two sides jointly will have important significance.
From geometry of machined surface topography to start, consider installation error, tool vibration, wear and deformation impact on its features to build a three-dimensional machined surface topography simulation model[8], extract its characteristic parameters, using gray system theory to analyze experimental data obtained from milling experiment[9], focus on solving the interaction between various factors, access to primary and secondary order of various factors.
(a) Simulation reasult (b) Curvature (c) Height (d) Length (e) Distribution Fig. 2 Machined surface topography characterization By characterizing contour units in geometric and distribution properties, machined surface topography characteristic parameters system established by Eq. (7)
Guo: Mechanical Science And Technology For Aerospace Engineering (2013) [3] G.Q.

The press condition can directly affect the relative density, improving the conductivity and mechanical properties.
In addition, carbon black tune the structure, electrical, and mechanical properties.
The phenolic resin content is an important factor that affects the performance of composite materials.
The strength of the mechanical properties is influenced by temperature (Figure 8).
These factors reach the maximum value when the carbon black content is 7%, the highest being 345 S/cm.

Abstract： Stress concentration coefficient of welded joints has a crucial influence on mechanical properties of welded structures.
In order to increase the mechanical properties and using safety of welded structures, it has great significance for reducing stress concentration coefficient and improving the mechanical properties of welded structures by researching and improving the geometry of welded joints .
The calculation results indicate that reducing weld toe inclination angle or increasing transition arc radius can effectively decrease the stress concentration coefficient of welded butt joints, so as to improve the mechanical properties of welded structures.
There are a lot of factors influencing fatigue strength of welded structures, but stress concentration is the most important one.
The influence factors on stress concentration phenomenon of welded butt joint This paper focuses on the main factors, including weld toe inclination angle θ and weld edge transition arc radius r.

Wide spectrum of factors affects durability of cutting tools, which is important to study and analyze to point out the differences in this process.
In addition to used cutting material there are more parameters affecting cutting process.
Material for workpieces is from specific material list with guaranteed chemical structure and mechanical properties.
Material for cutting tools defines theirs machining properties.
Testing properties of those materials are very important, because their properties may be different than properties defined in standards ISO.

The bond interface wave and mechanical properties are analyzed.
Some factors affecting the quality of welding and the corresponding solutions are waiting for a further study.
The size and mechanical properties of two tubes are shown in Table1.
The mechanical properties of the test results show that the binding interface bond properties and mechanical properties of Al/Ti composite tube, in accordance with the determined process of the explosive welding, fully meet the requirements of engineering.
Pavliukova, Structural and mechanical properties of metallic-intermetallic laminate composites produced by explosive welding and annealing, Mater.

This paper presents the design of hydraulic locking mechanism based on material friction properties.
The strength, elasticity, temperature coefficient, and the factors such as friction coefficient are considered in the process of design.
We also consider the characteristics of different materials, and give a general design process according to the properties of the material.
The analysis of the effects of material properties to the locking mechanism design has a very important significance to practical applications.
Considering the machining errors, environmental differences and unstable factors such as friction properties, the actual size of interference quantity should be enlarged properly.

The effect of MAPE content in the matrix on the mechanical properties of the matrix and WPC was investigated.
On one hand, addition of coupling agent could increase the mechanical properties of WPC, but the extent of improvement was not remarkable[18].
Sometime, coupling agent did not affect the mechanical properties significantly[19], even exerted negative influence[20].
On the other hand, although a small amount of compatibilizer improved the mechanical properties of WPC[14], the total additive usage of compatibilizer was limited due to the high cost of commercial compatibilizer, which caused the mechanical properties could only be improved to some extent.
Therefore, the impact strength of WPC depended on the result of competition of the two factors.