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Ltd, CHendu, 610100, China apengkewu@126.com,bpnwzdm1997@yahoo.com.cn,chelima63@163.com, dtoughold@163.com, ewy_yanzifei2003@163.com; Key words: cerium boride, boron carbide, mechanical properties, microstructure Abstract.
The mechanical properties of B4C-CeB6 composite prepared by hot pressed sintering method were tested.
Lots of boron carbide composites have been studied in order to enhance its properties and improve drawbacks of B4C.
To the authors’ knowledge, there is no publication available on Mechanical properties and fracture mechanism of B4C-CeB6 composite [5-9].
Flexibility strength is affected mainly by two factors of porosity and grain size.

Effect of Poling on the Mechanical Properties of ββββ-poly(Vinylidene Fluoride) C.M.
The differences observed between the two materials suggest that the poling affects the mechanical properties of the material especially in the direction parallel to the polymeric chains and originates changes at a molecular level that remain beyond the melting of the material.
An important issue is the dependence of those properties on the structure of PVDF.
The Young´s modulus at constant polarization obtained from equation 2 for unpoled PVDF, is 0.9GPa ± 0.1 GPa and for poled PVDF is 1.3GPa ± 0.1 GPa, i.e the poling process affects the mechanical properties of the material along the chain direction.
As a result, the Young modulus of the material along the polymeric chains increases but does not especially affect the mechanical properties in the transversal direction, i.e. poling mainly affects the intrachain coupling.

Other factors affect the properties of NiTi wires such as chemical composition and manufacturing procedures.
Heat treatment can affect the mechanical properties of NiTi wires, as described in various studies about this topic.[8-13] The degree of working also affects the mechanical properties since increasing it tends to make the alloy lose its superelastic characteristics.
Finally, further studies are needed to evaluate commercially-made orthodontic NiTi wires related to other factors affecting clinical use.
Triple-stranded stainless steel wires-evaluation of mechanical properties and comparison with titanium alloy alternatives.
Effect of low-temperature phase changes on the mechanical properties of alloy near composition NiTi.

That is because it has direct impacts on the physical and mechanical properties.
Porosity and compressibility affect properties like brake vibration.
These properties are significantly affected by the performance of the pad.
Both properties are affected not only by the material formulation but also by the manufacturing process [3].
Molding pressure (X2) is considered to be the most influent factor affecting porosity.

In manufacturing of panel board that made up from veneer material, several factors need to be concerned.
Mechanical Properties.
Screw withdrawal properties is affected by various factors, such board composition, density and moisture content were considered, and also the relationship of depth of penetration to holding strength which requires more investigation [12,13].
Conclusion Pressure at 130 kg/cm2 gives higher mechanical properties and physical properties of HLBWVB as compared to pressure at 70 kg/cm2.
Nazrul, Some physical and mechanical properties of bamboo mat-wood veneer plywood.

In conclusion, the incorporation of vanillin into PMMA resin could affect its mechanical properties.
In addition to the antimicrobial properties, the mechanical properties of the appliance are crucial criteria to utilize in clinical uses since a lack of these properties can reduce the appliance's functions and can cause major complications.
A mechanical property evaluation is needed to confirm sufficient properties.
Theoretically, many factors influence the mechanical properties of the resin, such as chemical composition, curing method, degree of polymerization, and storage [10-12].
Summary This study demonstrates that incorporating vanillin into PMMA resin causes a decrease in its mechanical properties.

Control factors of Chang 4+5 reservoir properties in Jiyuan Oilfield Qi Zhou, Yanyi Yin Northeast petroleum university at Qinhuangdao,Qinhuangdao,China qizh_dq@yahoo.com.cn Keywords: ultra-low permeability reservoirs; storage potential; sedimentation; diagenesis; porosity evolution; Chang 4+5; Jiyuan Oilfield Abstract.
Sedimentary factor includes lithology and sedimentary facies, two basic factors affecting the storage potential.
Therefore, reservoir properties are jointly controlled by sedimentation and diagenesis.
Analysis of factors affecting the storage potential Pore type and porosity are the results of sedimentation-diagenesis evolution, and under certain sedimentary conditions, their main influence is manifested in the process of diagenesis evolution.
Mechanical compaction and cementation undermine the storage potential, and are the factors directly resulting in the reduction of the rock pore volume.

Several factors may contribute to the formations of residual stress and deformation.
However, the formulation considered the contributions of the transient temperature field to the stress analysis through thermal expansion, as well as temperature- dependent thermo-physical and mechanical properties.
The thermal analysis was performed using temperature dependent thermal material properties.
Table. 1 Properties of the steel substrate and stellite 6 material.
Fig. 5, Temperature-dependent mechanical-physical properties.

Weld pool geometry is one of the key factor to decide the mechanical properties of the welded joints.
The metallurgical properties of the welds were also characterized and described in detail and correlated with the mechanical properties of the GTAW welded joints.
Final equation in terms of coded factors: Fusion Zone=2.13-0.14*A-0.1*B+0.038*C+0.05*AB-0.025*AC+0.2*BC, the final equation is written in terms of actual factors: Fusion Zone =9.00441-0.010833*welding Figure 1.
Sivaprasad, Evaluation of microstructures and mechanical properties of dissimilar materials by friction welding, Procedia.
Che, Improving mechanical properties of dissimilar material friction welds, Appl.

Based on the summary and analysis of experiments, the authors discussed the influence of fill factor on performance of internal mixers and physical and mechanical properties of the rubber compound.
As an important performance parameter of the mixer, it affects not only the production capacity of the mixer, maximum power consumption, unit energy consumption, mixing time and discharge temperature, but also the mixing quality (physical and mechanical properties and dispersion) [1].
In this paper, with the conditions of the same ram piston pressure, cooling water temperature and rotor speed, the experiments were carried on to study the influence of fill factor on mixing performance of mixer and physical and mechanical properties of rubber compound in four types of X(S)M-1.7L mixer: intermeshing rotor mixer, variable intermeshing clearance mixer, shearing rotor mixer and variable shearing clearance mixer.
It depends on the changing rate of the two factors.
But the optimal value can not be theoretically calculated, because the factors which affect the fill factor is too many and too complex, such as the mixer type, the rotor speed, cooling water temperature, ram piston pressure, recipe, feeding ways and operation methods and most of these factors are difficult to quantify.