Search results

Laser-matter interaction is commonly described regarding three main factors: laser beam, materials and environment.
New materials with specific properties such as endurance life and/or lower environmental impact attract emerging technologies such as thermal spraying.
However, adhesive bond strengths have to be high enough to play a key role in surface properties.
Figure 3 represents the adherence values for all material combinations function of surface ratio factors (R).
Coddet, Pre-/ During-/ Post-Laser Processes to Enhance the Adhesion and Mechanical Properties of Thermal Sprayed Coatings with a Reduced Environmental Impact, J.

The minimum safety coefficient for strength leads to the necessity of exact calculation with account for all factors during the structure exploitation.
As a rule, the mechanical properties of material are degenerated after the hydrogen concentration has increased.
It is very dangerous because the hydrogen concentration strongly correlates with the mechanical properties.
We suppose that the mechanical properties of continuum degrade due to this interaction.
Theoretical Model for the Hydrogen-Material Interaction as a Basis for Prediction of the Material Mechanical Properties.

The analytical result shows that post-baked temperature is the main effect factor on internal stress of SU-8 film.
The effect of the relevant factors on internal stress was investigated by finite element analysis and the internal stresses of SU-8 film on Si substrate at different post-baked temperatures were measured.
Axi-symmetry properties have been used to simplify the boundary conditions.
However, even though these factors affect the measurement accuracy of the curvature radius to some extent, the profile method is a preferable method for the internal stress measurement of SU-8 film due to its simple operation procedures and convenient calculation.
Zhao, Residual Stresses in Micro-Electro Mechanical Systems, Journal of Mechanical Strength, 23 (2001) 393-401.

Thermal properties and generating electricity efficiency of this module are also introduced in this article.
The secondary factors are the position of solar cells (close to the top glass or the bottom glass), the width of the spacer and the thickness of glass.
The optical properties of components mainly affect the short-circuit current and temperature mainly impacts the open circuit voltage and fill-factor.
The deviation of film thickness affects its electrical properties.
The study on thermal properties of insulated double-glass photovoltaic modul [J].

The paper puts forward calculation method and influencing factors of coal wall stability ratio.
According to the pressure date comparison of Tiebei mine two coal faces, setting load is one of important factors inducing roof large area weighting.
The setting load value can affect the working face roof safety directly.
Figure .5 The analysis of shear failure of coal wall (1.7) where C=coal cohesion; =coal friction angle; S=shear stress; h=height of shear failure; q=concentrated load; α=angle between shear plane and coal wall; P=roof pressure; W=sip rock gravity; In Eq.1.7, ;;;,put theses equations into Eq.1.7: (1.8) According to Eq.1.8, coal wall stability coefficient is concerned with coal mechanical properties and concentrated load.
(4) The obeservation showes that low setting load is one of the important factors which cause working face roof cuting in large area.

All three factors were significant difference at different levels.
There also has significantly affect between relatively concentration of ROS free radical and properties of board in the process of laccase activated, and more higher concentration of ROS free radical indicated more excellent properties of bamboo particle board [7].
Experiment factors and levels were shown in the Tab 1.
Therefore, increasing the amount of calcium lignosulfonate was good for board properties.
Coefficient of variation of board physical and mechanical properties after six repetitive experimental were less than 8.18%，and this shows the properties of board made by this technology were more stabilize.

As a kind of lithographic material, due to its unique optical properties, mechanical properties and chemical properties and the lower cost compared with LIGA technology, SU-8 photoresist technology has been widely used in manufacturing of MEMS sensors and actuators, and attracted more and more attention in MEMS and micro manufacturing field.
Because of being affected by lithography pattern shape and other factors, additional researches will be taken on the development parameters.
TFQ and RLWD under factors in different levels are calculated according to the experimental results.
With the two indicators of graphics quality synthesized, taking the operating factors into account, the optimum process parameters of 300 micron thickness of photoresist is: A3B4C2D1.
Soft bake temperature, which determines the photosensitive properties of rubber, in this experiment, controlled in the range between 80℃ and 95℃.

A thorough experimental approach including mechanical testing and microstructural characterization was employed to shed light on the microstructure-mechanical properties-relationships in order to deepen the understanding of the critical damage mechanisms.
For calculation of the fatigue notch factors in Fig. 5b, the R20 samples were treated as un-notched.
In case of the R20 samples, the TWIP steel with 40 % of pre-deformation shows superior properties independent of the orientation of the samples.
The TWIP steel pre-strained to 40 % in general follows the same trend, showing even higher factors for the sharp notches.
In case of loading in the HCF regime superior properties are obtained upon highest pre-strain levels.

It is clearly noticed how the modified epoxy maintains the mechanical properties even at temperatures higher than 200 °C.
In addition to the enhancement of mechanical properties (strength), the carbon nanotubes show low electrical resistivity and good thermal conductivity.
In the case of glass reinforced epoxy pipe, it is known that the epoxy resin can absorb water that will affect the resin's mechanical and creep behaviour.
This will reduce the loss in mechanical properties.
Using nanoreinforcements will be possible to improve the fire resistance behaviour without affecting their mechanical properties and avoiding the use of hazardous materials.

This phenomenon is generally affected by the mechanical variables (slip amplitude, applied normal load, etc.) and the service environments (i.e. lubricant conditions).
Especially, the wear behavior in a water lubricant condition is sensitively affected by the material/mechanical properties such as a changed hardness of the contacting surfaces, subsurface deformation, etc [1,2].
This is closely related to a variation of the wear properties between the fuel rod and the supporting spring because the behavior of the generated wear particles on the worn surface affects the worn area expansion.
The chemical composition and mechanical properties are listed in Tables 1 and 2.
Mechanical properties of the tested Zirconium alloy Temperature Yield strength (MPa) Tensile strength (MPa) Elongation (%) 25℃ 565 807 17 Wear Tester.