Search results

The effects of plasma treatment induced modifications of structure and physical properties of WO3 thin films.
Introduction Tungsten oxide (WO3) thin films are of significant interest in various fields due to their unique physical and chemical properties.
The bandgap of WO₃ is generally in the range of 2.6 to 3.2 eV [1], depending on factors such as the material's crystalline structure, film thickness, and preparation method.
Therefore, post-deposition treatments [8], such as O2 plasma treatment [9], are often employed to modify and enhance these properties.
Marszałek, "Structure and optical properties of the WO₃ thin films deposited by the GLAD magnetron sputtering technique," Vacuum, 2020

Since the grain size has a very important influence on its mechanical properties and corrosion resistance it is significant to study the average grain size of TWIP steel.
Grain size and its distribution are important parameters which reflect the microstructure of metallic materials, and directly affect the mechanical properties and physical properties of materials, so it is an important parameter in production process control [2,3].
It is a hot research in new nondestructive testing technique and evaluation of material properties.
Kr, Ks and Kd are constants related to the material properties and αs represents the scattering attenuation coefficient.
Conclusions TWIP steel is widely used in the automobile manufacturing industry due to the characteristics of high elongation and high tensile strength, and the average grain size has an important influence on its mechanical properties.

Lack of expected mechanical reliability has been a key factor in the inability of ceramic components to maintain their function.
An important lesson learned from these and other projects is that two important factors can significantly influence the validity of the reliability predictions based upon data generated in the laboratory.
The first deals with the differences in properties exhibited by components and standard test specimens.
For example, because test specimens are often fabricated differently from the turbine component, the properties measured in the laboratory may not reflect those of the component.
Even if the fabrication processes are the same, differences in the surface-to-volume ratios can lead to differences in the measured properties.

Also the subsoil water runoff depends on soil properties.
However, since the dust content of the atmosphere depends on meteorological factors, ground configuration, properties of dust-generating substances, performed operations and their intensity, its concentration cannot be determined in advance.
The method cannot be applied, either, if the water should affect the adjacent buildings intended for demolition.
Erosion and soil impairment Soil is a natural formation which has originated at the boundary between the earth crust and the atmosphere by the synergy of soil-forming factors.
The principal soil-forming factors include: - parent substrate - climate - ground water - organisms - ground relief - human activities.

The air temperature is the major factor affecting built-in basic temperature.
Table 5 Thermophysical properties of cement concrete pavement Structure Thermal conductivity [W/m.
The temperature difference through the slab thickness was recognized as built-in temperature difference during the final setting time which is assumed to be the moment when stiffness properties begin to develop in the JPCP.
Based on the basic properties of BITD of JPCP constructed in different periods in Fuzhou region, it can be seen that BITD of pavement constructed in hot summer has maximum BITD and basic temperature.
The decrease of climate effect factors may lead to the reduction of negative BITD variation

The trapping oil phenomenon could be eliminated and the sealing property could be better than conventional involute gear pumps.
The gear tooth profile is a critical factor affecting the gear pump performance.
It can realize the trapping-free property and the precise control of flow.
It allows to improve the sealing property, make the gear pump set up higer pressure.
Yan: Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science Vol. 214 (2000), p. 599-607 [6] Jihua Zhu, Bang Pei, Donghai Hou and Zhongming Liu: Journal of Mechanical Transmission, Vol. 28 (2004) No.1, p.10-13.

Stability within the corrosive environment and compatibility with the metal substrate are essential factors.
The use of a CPE is significant because it accounts for the imperfect nature of the electrode surface, which can manifest as irregularities or roughness, affecting the electrochemical reactions.
Two main factors contribute to this decrease: the degradation of the inhibitor film and the formation of a less protective layer on the substrate.
The inhibitor film prevents corrosive substances from reaching the substrate, but over time, environmental factors or chemical reactions can degrade it.
Corrosion inhibition properties of pyrazolylindolenine compounds on copper surface in acidic media.

Depending on the metal, metal content and method of preparation high k-factors and low TCR values can be achieved.
For example, strain sensors made of Ni containing diamond like carbon (Ni-DLC) coatings had k-factors of up to 15 and TCR values from -2000 to +5000 ppmK1.
Radnóczi, Structural, electrical and magnetic properties of carbon–nickel composite thin films.
Jardim, Morphological and magnetic properties of carbon–nickel nanocomposite thin films.
Bhushan, Optical and mechanical properties of DC sputtered carbon films, Journal of Materials Research, 5 (1990) 2538 [13] S.

Introduction Nanoindentation tester is utilized to supply small loads with depth measurements in order to examine the mechanical properties of a material such as hardness, Young’s Modulus and creep.
Process parameters and their levels Factors Range Level 1 Level 2 Level 3 A 0.66-0.7 0.66 0.68 0.7 B 0.5-0.56 0.50 0.53 0.56 C 15-16 15 15.5 16 D 32-33 32 32.5 33 Table 5.
Using statistical approach, the sensitivity diagram was analyzed to investigate the effects of different factors on the quality output response.
Moreover, factor C revealed that in the range from 15 mm to 15.5 mm, it affected a slight decrease to R, but, from 15.5 mm to 16 mm, there was a slight increase to R.
Finally, factor D showed that in the range from 32 mm to 33 mm, it affected a sharp decrease to R.

Research on Cutting Force Simulation for Francis Hydro Turbine’s Blade Based on VERICUT Lei Wua, Yanchao Yinb, Zhuang Xiongc, Yilong Yand Faculty of Mechanical and Electrical Engineering Kunming University of Science and Technology Kunming, China, 650500 ajxzzwulei@163.com, byinyc@163.com, c xz394561777@163.com, djskdyanyilong@163.com Keywords: Francis Hydro Turbine’s Blade; Cutting force simulation; VERICUT Abstract.
Introduction Cutting force is one of the most important factors that affect the quality of parts machining and the life of cutting tool.
It can be impacted by many factors such as the properties of parts materials, cutting parameters and cutting fluid.
[6] Min Wang : Mechanical Engineer,(04): 1002—2333.(2013).