Search results

Electrochemical properties of the electrode fabricated with synthesized nanoparticles were evaluated. 1.
Generally, nanoparticle, such as metal oxide and metal carbide, has been fabricated by the chemical techniques and investigated on their physical and chemical properties.
The properties are also affected by the construction of the reactor, the heating method, the temperature gradient, preheating of the reactive gases, and the method of introducing the gas into the reactor [2-5].
For examination of its electrochemical properties, particles, which were synthesized at 125 torr of Fig. 4.
In the electrochemical properties, the maximum discharge capacity was about 115 mAh/g, and showing very low capacity compared with conventional capacity (about 400 mAh/g)[6].

This discontinuity will affect the internal electric field and the carrier collection and result in a poor open circuit voltage and fill factor [6-7].
Table 1 The deposition conditions and the optical properties of the amorphous silicon solar cells.
Layer p b i n Deposition Condition Pressure (Pa) 90 90 90 60 Power (W) 10 10 15 10 Temperature (°C) 200 200 200 200 E/S (mm) 20 20 30 25 SiH4 (sccm) 40 - 40 40 H2 (sccm) 80 160 80 C2H2 (sccm) 1 - - B2H6 (sccm) 5 - - PH3 (sccm) - - 5 Thickness (nm) 8 6 300 20 Optical properties Eg (eV) 2.07 - 1.79 1.61 α400 nm (cm-1) 141231 146648 499459 α600 nm (cm-1) 15038 50061 84081 Fig. 1.
Results and Discussion Fig. 2 show the optical properties of a-SiC:H buffer layers with different C2H2 gas flow rate.
Conclusions The energy band gap and absorption coefficient were affected by the carbon concentration.

Among these materials, brass, primarily composed of copper and zinc (CuZn), stands out for its advantageous properties.
This degradation leads to diminished mechanical properties thus making it unsafe [3].
Mechanical Properties of Brass.
The presence of chloride ions in the solution has a more significant impact on the corrosion of brass compared to other factors like bending angle and temperature.
In conclusion, increasing the chloride ion concentration has the most potent effect on brass corrosion compared to other factors.

It is important to construct a micromechanical constitutive model containing the component and microstructure information with micromechanical approaches in order to predict mechanical properties of asphalt mixture [4-6].
After the above simplification, the micromechanical approaches can be applied to investigate mechanical behaviors of asphalt mixture.
The equivalent inclusion method proved to be effective for estimating a homogenized elastic property of composite materials, and able to be extended to investigate viscoelastic problems, such as the effective viscoelastic properties of asphalt mixture, with the elastic-viscoelastic correspondence principle [8].
“Numerical simulation of mechanical behavior of asphalt mix.”
“Factors affecting the stiffening potential of mineral fillers.”

Thus, based on the nucleation and crystallization technological parameter measured by means of DSC, we can obtain the higher mechanical property.
The optimal nucleation temperature and nucleation time will be received when one of the two factors changes.
The mechanical property reached to the maximal value when at the peak 730℃, while the mechanical property change was very small between 730℃ and 740℃.
However, if the temperature increased to 760℃ or above, it was bad for samples to form nucleation, and the growth of crystal was inhomogeneous which affected the mechanical property.
For this reason, nucleated at 730℃ for 2h and treated by crystallization, the content of crystalline phase was suitable, grain were homogeneous and mechanical property was better.

The requirements of function, material properties, structural shapes, reliability, interchangeability and many other demands are also increasing [1].
In the micro cutting process, surface roughness is affected by many factors.
In the micro-milling process, the surface roughness values are affected by many factors, and there are many interactions among various parameters.
This study designs three factors and three levels.
The axial depth of cut is a secondary factor which affects the surface roughness.

A study was performed to evaluate how the Friction Stir Spot Welding process parameters affect both the thermal distribution in the welding region and the welding forces.
Nevertheless, as reported into the literature, the results on how the process parameters affect the joint properties are different, and the influence of the welding conditions on the joint characteristics and fracture is not yet fully understood; then, only a general comparison can be achieved because of different alloy use, varied alloy thickness and tool design.
The experimental tests were based on a Box-Behnken Design (factors: 4, replicates: 1, total runs: 27, center points: 3).
Mishra, Effect of Welding Parameters on Properties of 5052 Al Friction Stir Spot Welds, SAE Technical Series 2006-01-0969
Natarajan, Effect of process parameters on thermal history and mechanical properties of friction stir welds, Materials and Design 30/7 (2009) 2726–2731

Dielectric properties of the hybrids were also investigated.
CE1 containing 1 wt% of POSS has the best dielectric properties.
Recently, Polyhedral Oligomeric Silsesquioxane (POSS) attracts much attention as one of the most important nano-structured materials owing to its such excellent mechanical properties, thermal stability, and low dielectric constant [3-4].
Our groups have synthesized several different POSS monomers and incorporated them into epoxy and CE to prepare organic-inorganic hybrids with improved mechanical and thermal properties [5-7].
POSS-NH2/CE hybrids were studied in terms of curing reaction and dielectric properties.

Therefore, equipment performance is affected by the environment.
Typically, equipment operating environment refers to all contextual factors which equipments exist and run, including the natural environment, political environment, technological, environmental and economic environment.
As is shown in Figure 1, this include the external environment (equipment operating environment) and the background--between the internal and external factors in the complex engineering equipment system, the interaction relationship between the factors of engineering equipment,then establish a corresponding system model ,which make optimal change design of the system structure.
To improve the level of environmental adaptability of armor, we need analyze and evaluate some environmental factors armored vehicles encountered, including meteorological environment, mechanical environment, geography, etc.
As described above, changes in vehicle performance may result in a deterioration of other properties, which is a conflict in armor performance demand indicators, especially for the design of local change in armored vehicles, also limited by the existing structures.

In a lot of factors, thermal deformation of motorized high-speed spindle is a key factor affecting the manufacturing accuracy of machine tool.
In order to reduce the thermal errors, the reasons and influence factors are analyzed.
Introduction With the increasing demand for the performance of CNC machine, many researchers are focusing on the property of each functional component.
Cause and Influence factor of the Thermal Error.
Fig.3 prediction results and curve fitting errors Summary In this paper, the causes of creation and influence factors of thermal error are analyzed.