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The final properties of the coatings and layer composites do not just depend on the properties of the combined materials but, as in the case of ceramic coated light metals, are distinctly affected by the occurring residual stresses and their interaction with operational load stresses.
Also the rotation velocity of the table is an important parameter which affects the final geometry and properties of the thermally sprayed coating.
Mechanical properties and biocompatibility of these implants are nevertheless not completely satisfactory, and new composite devices are demanded.
Polymer fracture fixation devices present some advantages compared to metal implants in particular regarding their mechanical properties, because they match the natural mechanical properties of bones much better than metal fixation devices.
In particular residual stresses in the substrate should be reduced to the minimum, in order to avoid a possible worsening of the implants mechanical properties.

Its special organizational structure and mechanical and physical properties bring many problems to milling process.
Orthogonal experiment parameters with four factors and four levels are selected based on the C/C composite forming structure characteristics, combining the purpose of this test.
The four factors include milling depth ap, milling speed V, milling width ae, and feed per tooth fz.
The level factors of milling parameters are shown in Table 1.
Almansa: Carbon fiber／carbon disc brakes：physical、mechanical and chemical properties.

Thus, accurate measurement of mechanical properties for cement particles, such as elastic modulus (E) and hardness (H), is very important and meaningful.
Moreover, with the development of computer technology applied in concrete field, it is known that the microstructure of cement-based materials determines the mechanical and physical properties, as well as the transport properties and related durability.
The Oliver and Pharr method [5] was used to determine the mechanical properties, H and Er (reduced modulus).
Prior to NI, the machine was calibrated by indenting a material (quartz) of known mechanical properties.
Conclusions NI is an ideal technique to identify the mechanical properties at micro-scale.

Hence the results suggest that the sub-Rouse modes and their properties are generally found in amorphous polymers by mechanical spectroscopy, and reveal the cooperative nature of the sub-Rouse modes.
Introduction From the accumulated studies by many researchers for more than half a century, the research field of polymer viscoelastic properties has arrived at a stage of becoming mature.
Another purpose of the study is to examine the effect of MW and structure on the sub-Rouse modes and its properties.
These similar properties indicate that the sub-Rouse modes, like the local segmental relaxation, are intermolecularly coupled and their dynamics are cooperative.
Ferry, Viscoelastic Properties of Polymers, third ed, Wiley, New York, 1980

Finite Element Model(FEAM) Three-dimension Finite Element Analysis (3D-FEA) models are built according to the rock mechanical models to analyze the concrete lining seismic responses under different buried depth.
Druck-Prager yield criterion is adopted to simulate the mechanical properties of the surrounding rock [4].
The mechanical parameters of concrete (C40) and surrounding rock are shown in Table 1.
The other factors remain consistent.
Liu, Discussion on several factors affecting seismic responses of underground structures, Geotechnical Engineering World, 2 (2004) 44-46

Addition of aluminum increases the castability, influences on the reduction size of grains and improves the mechanical properties of the alloy [4].
The chemical composition of Zn-Al alloys, alloy was modified by addition of 2 - 3% copper [5, 6], which improves the mechanical and tribological properties of alloys, and increases the density [4].
High resistance can reduce the damaging factors of the passive layer - such as chloride ions.
Analysis of literature data shows that prolonged heating of the alloy at approx. temperature of185°C affects the decrease in hardness and thus the deterioration of tribological properties [8].
An important factor affecting the corrosion resistance of the layer is rich in copper.

The parameters of the fuel properties are given in Table 1 and Table 2.
The XRF (X-ray fluorescence) and XRD (X-ray diffraction) analysis are performed to explore the properties of bottom ash and fly ash.
There is limitation for chemical equilibrim analysis, because the effects of kinetics, residence time, operating conditions and other factors are not taken into consideration.
When the operating conditions of all the experiments are kept consistent, the main factor influencing results is the fuel properties.
Ash properties.

In this paper, two kinds of micro-mechanical models are utilized to predict the effective Young's modulus for hybrid composites including fiber-like, spherical and needle inclusions in an isotropic matrix.
The results show that the shape and the Young’s modulus of inclusion, aspect ratio of fiber-like inclusion are the controlling factors to influence the Young's modulus, and MP model is more rational to predict the effective Young’s modulus of hybrid composites reinforced with multi-shape inclusions.
Assuming the material properties of needle-like inclusion is En=270GPa, nn=0.2, and the Young's moduli are Ef=450GPa, Es=270GPa (Subscribe f denotes fiber-like inclusion, and s denotes spherical inclusion and n denotes needle-like inclusion).
Fig.8 shows that the calculating sequence has an obvious influence on E11 even for a small aspect ratio in MP model, and the E11 for F-S sequence is much higher than that for S-F sequence, and the calculating sequence, volume fraction of inclusions and the shape of inclusions are the important factors to affect E11 for composites reinforced with multi-shape inclusions.
Fig.7 MS model for F-S and S-F sequence (a=10) Fig.8 MP model for F-S and S-F sequence Conclusions The purpose of this work is to compare the methods to predict the effective elastic properties for composites reinforced with multi-shape inclusions.

Different content in the iron and steel affect the material mechanical properties, process performance and physical and chemical properties.Ferroalloy is composed of iron and a certain amount of other metal elements.
Its content can directly affect scalability, flexibility and a number of physical processing properties of the alloy.
However, in the production of low carbon or lower carbon ferroalloy, there are small scope of the carbon content control and many factors affecting adding carbon.
At the same time, it should be considered that In all the elements within calibration in the sample content are equal, This element and analysis element have similar of melting the boiling point, atomic number, physicochemical property and close to ionization potential.
(In China) [2] W.L.Cheung,: Analysis of aluminum alloys by resonance-enhanced laser-induced breakdown spectroscopy: How the beam profile of the ablation laser and the energy of the dye laser affect analytical performance.

And the qualities of pore-forming agents such as pore-forming ability and pore-forming structures under some heat treatment are some of critical factors affecting its performance.
They remained in the bodies, affecting the strength and other properties of the bodies.
As is mentioned above, that is because SiC worked as some additive to its sintered specimen, and hardly affected the porosity of the bodies [7].
What’s more, strength and bulk density of the sintered specimens were affected by the large quantities of remaining pore-forming agents which did not react during the sintering process.
When Li2CO3 of Group A, CaCO3 and CaSO4 of Group D, graphite powder of Group C work as pore-forming agents, they will impose some negative effect on the structure and properties of ceramics because the remains of them exist within the bodies after sintering.