Search results

Introduction The double factors, namely freeze-thaw cycle and corrosion, directly affect the durability of concrete.
At the present time, the study on mechanical properties of concrete under the action of the freeze-thaw cycle and the corrosive medium is not so more, the applied freeze-thaw methods for concrete are also no same.
In this paper, mechanical properties experiments of concrete in seawater after 0, 25, 50, 75 and 100 freeze-thaw cycles were studied using fast frost method.
Mechanical properties experiments of concrete after 0, 25, 50 ,75 and 100 freeze-thaw cycles were carried out.
Fig.2 The relation between strains at peak stress points with freezing-thawing cycles Conclusions (1) Both freezing-thawing cycles and corrosion can damage mechanical properties of concrete.

The properties of asphalt material determine that it is bound to result in large porosity of mixture, and then poor water resistance, thus easily causing moisture damage.
Analysis of Factors for Wheel Rut Wheel rut is mainly caused by internal and external factors.
Internal Factors.
External Factors.
This paper did not analyze RAP proportion, for there are a lot of factors affecting pavement performance and simple analysis is not persuasive enough.

Effect of Heavy Filler on Dynamic Mechanical Properties of Polymer Composites O.I.
Experimental studies on the effect of frequency and temperature on the dynamic mechanical properties of filled composites are studied poorly and require further research.
Fillers have a great influence on the properties of compositions; the assessment of their impact is a particularly important factor.
It is stated that the type of filler affects the damping properties.
Sweeney.An Introduction to the Mechanical Properties of Solid Polymers, Wiley, 2004

The surface topography and properties of coating layer have an important influence on penetration and distribution of the print ink.
Factors such as pore structure, coating color formulation, particle arranging and coating speed, et are important to final printing.
The amount and type of latex binder has a significant effect on both the structure and chemical-physical properties of coated paper, which affect critical surface properties, e.g., print gloss, roughness, ink setting rate via liquid absorption, and spreading properties [1-2].
One of the important factors affecting printability is the surface structure of coated paper, generally referred to as surface smoothness or roughness.
It could be concluded that binder affected surface topography, pore distribution, surface physical-chemical properties and final printing quality of coated paper.

The top five about peaks describes the extremes of micro-EDM surface roughness, and is strongly affected by stochastic factors.
The top five about valleys describes the extremes of micro-EDM surface roughness, and is strongly affected by stochastic factors.
Summary From the above research, it’s found that among the given parameters, the arithmetic mean deviation and the root mean square deviation about peaks and valleys belong to amplitude parameters, which are the most important characteristics of surface topography; while the root mean square slope about peaks and valleys belong to comprehensive parameters, which are the main factors to influence surface friction properties, also have great sensitivity to surface scales, but their values are very dependent on the measurement resolution.
Additionally, the bearing ratio about peaks and the fluid retention capacity curve belong to functional parameters, which could reflect some special properties information.
Thus, further research about the characterization of micro-EDM surface roughness parameters still needed to be studied, and its emphasis should be put on the surface characteristics and the surface properties.

The mechanism and factors of stability for different heat stabilizers were revealed by means of analyzing fourier transform infrared spectroscopy (FTIR).
The item researched the influence of four diverse stabilizers on the stable performance of WPC according to the process of extrusion and analysis for mechanical properties and FTIR.
The analysis method for FTIR and mechanical properties.
The performance of mechanical properties for Sample 1 and 4 were similar closely.
Similarly as the sample 1 and 4, there were very close properties between sample 2 and 3.

The results of Mg-1Zn [10], Mg-6Zn [11, 12] alloys revealed the suitable mechanical properties, as well as a reduced in corrosion rate.
Moreover, studies [19-22] revealed that the technique affected the microstructures and mechanical properties significantly.
Yang, Microstructure, mechanical and corrosion properties and biocompatibility of Mg-Zn-Mn alloys for biomedical application, Mat.
Han, Effect of microstructure and texture on the mechanical properties of the as-extruded Mg–Zn–Y–Zr alloys, Mater.
Stanford, The effect of calcium on the texture, microstructure and mechanical properties of extruded Mg–Mn–Ca alloys, Mate.

In comparison, U-SiO2 reinforced nanocomposites showed higher thermal properties than those reinforced by mesoporous silica (SBA-15) and SiO2 synthesized by stirring (S-SiO2).
Introduction The organic-inorganic hybridizing materials, especially the nanocomposites consisting of nano-inorganic particles and polymer resin, have received considerable attention recently due to that the resultant materials are supposed to have better mechanical and/or thermal properties.
The objective of this study is to improve mechanical strength and thermal properties of nano-SiO2/PF nanocomposites.
The effect of various nano-SiO2 on thermal properties of the PF nanocomposites was characterized with dynamic mechanical analysis (DMA), thermomechanical Analysis (TMA), and thermogravimetric analysis (TGA).
The followings are the conclusions: (1) The dynamic mechanical properties of nano-SiO2/PF nanocomposites are affected by adding nono-SiO2 to the polymer matrix.

In recent years, people applied more high-performance aramid fibers, polyimide fibers and other inherent flame retardant fibers with aromatic or ladder-like heterocyclic chain structures [1] in the production of fire-protection clothing as these fibers have excellent performance against flame and high temperature, and have good mechanical properties.
These cracks, along with plenty of wider cracks in the lower right corner appeared after shrinking, will together affect the practical application of their protective properties.
However, the mechanical properties of flame retardant viscose produced by Lenzing is only 2.4cN/dtex while aramid fiber is generally more than 1313 3.5 cN/dtex and aramid 1414 is close to 20 cN/dtex [7], thus it reduces the durability of woven fabrics after the adding of this viscose.
We can see from Table 5 which lists different mechanical properties towards three outer woven fabrics that, the adding of flame retardant viscose produced by Lenzing would bring about a significant reduction of breaking force and tear strength of the fabric, thus affecting its durability.
And the adding of proportional flame retardant viscose could help us solve this problem, but at the same time may also lead to obvious decrease in mechanical properties, thus affecting its durability.

Since the properties of ferrites strongly depend on oxygen stoichiometry [15-23], the effect of radiation can significantly affect the intensity of oxygen exchange during radiation heating, depending on the composition and pressure of the surrounding gaseous medium.
It is important to know how such irradiation will affect the mechanical properties of ceramics.
Kulkov, Structure, phase composition and mechanical properties of ZrO2-based nanosystems, Physical Mesomechanics 11 (2008) 29-41
Kostikov, Influence of Technological Factors on Structure and Properties of Alumina-Zirconia Ceramics, Advanced Materials Research 1040 (2014) 845–849
Nikolaeva, Influence of a high-power pulsed ion beam on the mechanical properties of corundum ceramics, IOP Conf.