Search results

Crystal vacancy is one of the most important reasons for elasticity phenomenon of steels, which results in the fact that the Young's modulus is affected by pulling rate.
Introduction Young's modulus is one of the basic mechanical properties of metal materials.
It can not only represent the ability of elastic deformation resistance of materials but also affect the property of deformation springback of workpieces.
So the factors affecting the Young's modulus are very significant.
(Mechanical Industry Press, Beijing, 1999) [2] Liu Yang: Rare Metal Materials and Engineering.

Corrosions are initiated by various factors, both from the environment and due to the type of material.
Mild steel finds broad application basically because of its ready availability, sensibly great mechanical properties, and ease of fabrication.
Coating quality depends on other factors besides the type of material being used.
Surface characterization, mechanical properties and corrosion behaviour of ternary based Zn-ZnO-SiO2 composite coating of mild steel.
Influence of environmental factors on corrosion of ship structures in marine atmosphere.

Poly-ether-ether-ketone (PEEK) becomes one of the most promising polymer material for the tribological applications because of its outstanding performance such as high mechanical properties, high chemical resistance, and high wear resistance.
ANOVA is used for identifying the factors that affects the performance measures of quadratic models.
The magnitude of the variables indicates the relative weight of each of these factors.
If any of the responses or factors fall outside their desirability range, the overall function becomes zero.
[11] TieshengGu, Gongxiong Liao, Min Qi, YajuanXu &XigaoJian, Mechanical and Thermal Properties of Poly(phthalazinone biphenyl ether sulfone)/PEEK Blends Polymer-Plastics Technology and Engineering. 48 (2009) 882-889

In additional, the particle growth of BaCO3 and TiO2 are the major factors to affect of the particle growth mechanism.
BaTiO3 is a good candidate for a various applications because of its high electric constant, ferroelectric properties, and positives temperature coefficient resistors [1,2].
Moreover, the characteristics of BaTiO3 powders had affected to the properties of the final product, such as fine particle size, wide size distribution and the degree of particle agglomeration [4].
Therefore, the intimate mixing of the starting powders is a key factor for BaTiO3 preparation.
Bruni, Effect of mechanical milling on solid state formation of BaTiO3 from BaCO3-TiO2 (rutile) mixtures, Thermochimics Acta. 374 (2001) 151-158

However, as high modulus asphalt mixture is still not popular at present, very little research on mechanical properties of high modulus asphalt mixture were reported.
And the mechanical properties of these mixtures are evaluated with Simple Performance Testing system (SPT) under different temperature, loading frequency and confining pressure.
This relates to internal factors of asphalt binder and aggregate gradation, and external factors of confining pressure and loading frequency.
And the mechanical properties such as dynamic modulus and phase angle of these two mixtures are tested with SPT under different combination of temperatures, loading frequencies and confining pressures.
Testing results also show significant influence of temperature, loading frequency and confining pressure on mechanical properties of high modulus asphalt mixture and the complex changing rules of dynamic modulus and phase angle.

It was found that the porosity values of FRP in typical aircraft composite parts must be lower than 2.5 % to achieve the required mechanical properties.
Table 2 represents the exact amount of the acid digestion factors that can be used to perform the acid digestion test for Cycom 970 composite laminates.
The void in laminate have a tendency to propagate and will affect the mechanical properties.
Wu, Effects of cure cycles on void content and mechanical properties of composite laminates.
Ghiorse, Effect of void content on the mechanical properties of carbon/epoxy laminates.

The tribological properties of thermoplastic polyetherimide composites filled with Kevlar pulp Cai chilana, Wang wenxiab, Li jianc School of Mechanical & Electronic Engineering, Shanghai Second Polytechnic University, Shanghai 201209, P.R.
The effects of Kevlar content on tribological properties of the PEI composites were investigated.
Polyetherimide (PEI) is a high performance amorphous thermoplastic, possessing excellent mechanical properties even at elevated temperatures due to its high glass transition temperature (around 217 ◦C).
Results and Discussions 3.1 Tensile properties Fig2 The tensile properties of Kevlar/PEI Figure2 displays the correlation between the tensile strength of the composites and the volume fraction of Kevlar pulps.
This means that the concentration of the inclusions is the main factor affecting the yield strength of a filled polymer. 3.2 Tribological properties Fig3 The variation of friction coefficient with sliding frequency(load:12N ) Figs. 3 presents the variation of friction coefficient for pure PEI and Kevlar reinforced PEI with the change in sliding frequency.

The effect of glassy-phase, using AlN and Lu2O3 as sintering additives, on the microstructure and mechanical properties of liquid-phase-sintered, and subsequently annealed SiC ceramics was investigated.
The effect of additive composition on microstructure and mechanical properties were investigated.
It is well documented that the mechanical properties of liquid-phase sintered SiC ceramics are strongly dependent on their microstructures.
It seems that SiC morphology is not the major factor affecting fracture toughness in the present ceramics.
Conclusions The microstructure and the mechanical properties of liquid-phase-sintered SiC ceramics were affected by the chemistry of sintering additives.

This is also the reason why it is necessary to investigate the mechanical properties of SUS 304 stainless steel and determine the limit values of these process parameters. 3.
The properties of SUS 304 stainless steel are shown in Table 1.
Table 1 Mechanical properties of stainless steel SUS 304 [21].
Through the function Y, it is possible to graph each pair of factors affecting the forming angle (Figure 4 - 6), the graphs are drawn when the value of the remaining factor is kept at the base level.
Micari, “Influence of mechanical properties of the sheet material on formability in single point incremental forming”, CIRP Ann. - Manuf.

Results and Discussion Mechanical Property.
Mechanical Properties of POSS Hybrid Composites.
The distribution of POSS moieties in polymer matrices had a great effect on both thermal and mechanical properties of resultant composite systems.
But the distribution of POSS in matrix is one of the most critical factors on properties of composite.
Xiao, et al., Polyimide /POSS nano composites interfacial interaction, thermal properties and mechanical properties, Polym. 44(16) (2003) 4491-4499