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Ideal properties of ZnSe material should have low optical scatter and absorption, high optical uniformity, high thermal shock resistance [7].However, in practical applications, it’s limited by the poor mechanical properties and unstable fabricate process.
Generally, the ceramic have better performance of the mechanical properties than the polycrystal or single crystal in a same material, and it’s been proved that Cr2+:ZnSe transparent ceramics with suitable optical properties can be prepared by hot pressing.
As the ZnSe ceramic is sintered from ZnSe powder, the properties of sintered ceramic are affected bythe quality of powder remarkably.
Thus, powder treatment is a key process which could be one of the most important factor to the final properties of ZnSe ceramic [11].
The chief factors of generate scattering centers are nanopores.

Although only mechanical pressure provided by a nip roll was applied during the calendering process, the experimental results indicate that the calendering process should be useful for enhancing the surface quality of roll-to-roll printed electronics products.
If it is beyond the specifications, it should affect the printing quality of the next layer and eventually the overall capability of device.
Another factor to be considered is the electrical conductivity.
Therefore electrical properties of pattern are also expected to change.
Future work should include experiments with the heating roll and analysis to find out critical factors for the quality enhancement.

Contents of peak current, pulse on time, duty cycle, and servo voltage were the main factors, and each factor was endowed three levels.
However, the machinability of superalloy is generally considered to be poor due to several inherent properties including low thermal conductivity, rapid work hardening, ability to react with tool materials under atmospheric conditions, formation of built-up edge, weld to cutting edges and presence abrasive carbides in their microstructure [2].
The EDM is a complex combination of electrical, fluidic and mechanical process.
Among the process parameters, electric parameters are important factors.
Fig. 2 directly reveals the effects of the test factors on MRR.

A critical factor affecting the performance and reliability of KTP in laser system is the quality of the resulting machined surface.
In a previous study, the physical and chemical properties of KTP are discussed in detail, but the machining characters are seldom involved.
On the Lapping Process In the lapping process, the workmaterial is removed by the mechanical and chemical actions between abrasives, workmaterial and environments (water or air).
The properties of lapping pad and abrasives are the essential factors to ensure the super-smooth surface.
It can be concluded from this study that: The mechanical action of abrasives includes rolling and micro cutting in lapping process of KTP.

In the processing of manufacturing, the rising of temperature caused by friction heat, cutting heat, ambient temperature and other factors will lead to thermal deformation of the driving components of machine tool, so that the correct position between the tool and work piece will be changed.
Introduction A machine tool is a powered mechanical device, typically used to fabricate metal components of machines by machining, which is the selective removal of metal.
In the processing of manufacturing, the rising of temperature caused by friction heat, cutting heat, ambient temperature and other factors will lead to thermal deformation of the driving components of machine tool, so that the correct position between the tool and work piece will be changed.
Generally the inaccuracy of machine is caused by the following factors
The key point in this research is to study the thermal induced deformation and the major factors are temperature difference and material properties which are not affected by above errors, thus, we can say that the simulated temperature distribution is acceptable and could be used as boundary conditions for further structure simulation.

Both storage technologies lead to mechanical or thermal stresses within the material.
EDS analyses reveal the existence of micro-segregation, which could affect the local properties in respect to the AusStab.
In this context, the local chemical composition is a significant factor in terms of the susceptibility of austenitic steels against HEE.
Figure 2 shows property maps of Md30, Nieq and ΔGγ→α.
Weber, Impact of chemical inhomogeneities on local material properties and hydrogen environment embrittlement in AISI 304L steels, International Journal of Hydrogen Energy, (2018) steels, International Journal of Hydrogen Energy (2018)

Inorder to enhance the mechanical properties of Al/RHA composite, a casting parameters of the composite are to be optimized.
Optimization of squeeze casting parameters for non-symmetrical AC2A aluminium alloy castings was done through Taguchi method and found that squeeze pressure, die preheating temperature and compression holding time were the parameters making significant improvement in their mechanical properties [10].
Design of experiment is a technique of defining and investigating all possible conditions involving multiple factors, parameters and variables in an experiment.
ANOVA helps in formally testing the significance of all main factors and their interactions by comparing the mean square against an estimate of the experimental errors at specific confidence levels.
Among various regression models, a linear regression model was specially employed in mechanical properties study.

As more and more kinds and widely using of the Concrete chemical additive, it has become an important factor affects the concrete admixture.
The reasons caused concrete durability and its evaluation methods. 1.1 The reasons caused concrete durability The durability of the concrete structure refers to the character that concrete structures keep their own work ability in the natural environment, the using environment and under the action of the concrete internal factors, or in other words, the structure resistance ability against the destructive erosion of external and internal environments in the design service life.
Its influence factors can be divided into the following several aspects: (1)Environment aspect The environments which concrete is in have important influence on the durability of concrete.
Freezing and thawing experiment method used the Quick frozen method in the national standard common concrete mechanical properties and durability performance test method （GB/T50082-2009） [2] (2)Water permeability evaluation After 28 standard curing days Concrete specimen is under pressure from the hydraulic pressure 0.2 MPa ， la every 8 h increasing the water pressure 0.1 MPa till to 2.0 MPa pressure, and always watching out specimen head face for water seepage conditions.
Conclusion The bleed air performance of concrete admixture has much effect on the mechanical properties and durability of concrete, specifically as follows: (1) Concrete strength The adding of admixture can increase the air content of concrete, and reduce the water cement ratio.

In the factors of affecting the slope stability or contributing landslide, the main internals are poor engineering geology conditions and rock structure conditions.
They also can reflect and refract in the elastic properties of different medium interfaces.
When the medium of the composition, structure and density and other factors vary, the sound velocity also will change as the variations.
This conclusion provided evidence for the fractures constructs and fluid properties near the detecting wells.
A Preliminary Laboratory Experiment on Detection of Near-borehole Fractures andtheir Fluid Properties.

Regarding short process chains and improved mechanical properties conventional forming processes are often limited.
To fully understand material flow out of the sheet plane into the tooth cavity and to identify and qualify process factors depending on the functional elements´ geometry and friction, a single upsetting stage forming a simplified model of the blank is virtually analyzed with finite-element simulation.
Beside the special mould filling characteristics at different friction factors, the influence of friction in the upsetting process can also be observed by analyzing the forming force.
The investigations on different friction factors show an explicit influence on the mould filling behavior of the tooth’s cavity.
Varying the tooth shape affects strain hardening and contact stresses.