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Surface coating is efficiently to protect the fibre surface against alkali/acidic/moisture and thus to improve mechanical properties of the coated fibre.
However, an effective utilization of exceptional high mechanical properties of nanotube in composites is a long standing problem.
Because the critical flaws which limit the strength of fibres are located at the surface, the fibre fracture behaviour is strongly affected by the variation of coating properties.
Potential mechanisms of the mechanical property improvement include the contributions of different factors.
The significant increase in adhesion strength is attributed to the mechanical properties and thickness of the hybrid nanocoatings, influencing interface integration and stress concentration.

Four variables, water to cementitious material ratio (W/CM), sand ratio, cement replacement ratio, and the average particle size of clay-brick-powder were determined to analyze the affected factors on the properties of the concrete.
(3) W/CM is the most important factors affecting concrete strength.
Normally, the concrete properties reduced as the W/CM increased.
Standard for test method of mechanical properties on ordinary concrete
Mechanical Properties of Concrete with Recycled Clay-Brick-Powder.

The effects of surface topography fractal parameters of B104a-70 mechanical seal on contact properties of the end faces are analyzed by theoretical simulation.
According to established model, effects of surface topography fractal paremeters on contact properties of the end faces for mechanical seals are analyzed.
Effect of Surface Topography Fractal Parameter on Contact Property Take B104a-70 mechanical seal for example.
Asperity contact friction factor fc = 0.1 [1,4] is took for theoretical calculation.
(2) The surface topography fractal parameters of sealing ring have great effects on contact properties of the end faces of friction pair for mechanical seal.

The clusters of NTC hinder the mechanical properties of the composites.
A P-value equal or lower than 0.05 implies rejecting H0, which reveals the factor significantly affect the response.
PHYSICAL AND MECHANICAL PROPERTIES OF THE COMPOSITES.
TUKEY TEST FOR THE PHYSICAL AND MECHANICAL PROPERTIES OF THE COMPOSITES.
The use of 60% of cement implies in the reduction of the mechanical properties.

P-type thermoelectric material Si0.8Ge0.2 was fabricated by mechanical alloying(MA) and Hot-Press Process(HP) The effect of Boron(0.25~2wt%) addition on the thermoelectric properties of p-type Si0.8Ge0.2 alloy was reported.
The S and σ are determined by the electronic properties of the material and are often combined in the formula S2σ, which is called the "power factor".
The purpose of this study, therefore, is to improve the Z value by controlling the thermoelectric properties with dopant content.
It shows that the excessive dopant concentration had a positive effect on thermal conductivity properties.
Conclusions The effect of boron addition on the thermoelectric properties of Si0.8Ge0.2 alloys prepared by Hot press (HP) process has been investigated and following conclusions have drawn. 1.

The aggregation structure of raw silk which influences the mechanical properties of raw silk directly is not only determined by the properties of cocoon but also affected by silk reeling velocity.
The study showed that orientation degree, crystallinity and mechanical properties of raw silk were remarkably influenced by silk reeling velocity, and the mechanical properties of raw silk would be improved through the reasonable silk reeling velocity.
In addition, the properties of raw silk are determined by the structure of raw silk.
Then the sonic velocity and orientation factor were worked out
Varying the silk reeling velocity, there is not a change on the location of the peak, however, the peak area seems to be affected.

Thus, mechanical properties, especially strength and toughness of rail steel must be continuously increased.
Hence, the improvement of mechanical properties of the rails are considerably necessary.
In order to determine mechanical properties of the rail steel, tensile tests were carried out.
Hence, the influences of bainite on mechanical properties of rail steels with mixed microstructure were aimed.
Summary The microstructure and mechanical properties of the rail steel grade 900A were investigated.

Effect of Solid Solution Treatment on the Microstructure and Mechanical Properties of IN738LC Superalloy Jeong-Min Kim1a, Joon-Sik Park1b, Ho-Seob Yun1c, Seung-Jin Lee1d, Seong-Uk An2e, 1Div. of Advanced Mater.
Characteristics of gamma prime precipitates were also significantly affected by the solid solution treatment conditions.
Introduction Nickel base superalloys have been widely utilized in high temperature applications such as turbine blades for aircraft engine or power generator, however the operation temperature of turbine blades becomes higher for obtaining higher energy efficiency, resulting in higher required properties of turbine blades.
The mechanical properties of superalloy castings has been known to be affected by the characteristics of carbides formed in the castings, but it is not still clear how significantly the properties can be varied as compared to the case of gamma prime precipitates.
The shape of the precipitates was characterized by a specific shape factor F defined as: [7] where A and P represent the mean area and perimeter of the carbides, respectively.

However, actual applications of pure polypropylene are limited due to the poor mechanical properties during service life.
Effects of experimental factors on the weldline tensile strength were plotted on Fig. 4(d).
The most significant factor affecting weldline tensile strength was gate locations, followed by injection pressure, melt temperature and injection speed.
The most significant factor affecting weldline strength was gate locations rather than process parameters.
Experiments carried out in this study revealed the significance of gating system design on the weldline mechanical properties.

Several coatings analytical parameters were studied and these factors affecting coating properties were carried out in the plasma-sprayed experiments.
Some studies have been focused on the identification and quantification of mechanical properties in plasma sprayed coatings.
Among those properties, the nature of the microhardness and coating structures significantly influences various types of coating properties, such as bond strength, thermal cycling and wear resistance, etc.
Mechanical Properties .Several mechanical property results of the coatings, for different travel speed of spun at powder-feeder rate of 20g/min, are shown Table 2.
The effect of powder-feeder rate of sprayed gun on mechanical properties.Figure3 shows the effect of powder-feeder rate on the hardened strength of coatings at travel speed of sprayed gun of 20mm/s, 25mm/s and 30mm/s, respectively.