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Online since: May 2020
Authors: Hailemariam Nigus Hailu, Daniel Tilahun Redda
The designation and its chemical composition mass in percent (%) of the candidate materials and their properties are also shown in Table1 and Table 2 respectively.
Table 4: Design factors ,properties and their cause [30] Factors Material Manf.
(13) Where: Sc= allowable contact stress number (MPa) based on material property ZN ,ZW,,YZ , SH = the stress-cycle factor, hardness ratio factors for pitting resistance ,temperature factors , reliability factors and AGMA factor of safety. 4.
This arbitrary division may vary from material-to-material depending upon tensile properties.
Mohrbacher, "Metallurgical concepts for optimized processing and properties of carburizing steel," Advances in Manufacturing, vol. 4, pp. 105-114, 2016
Online since: May 2011
Authors: Zi Yun Wen, Yu Fei Yuan, Zhao Ming Huang
The mortar has excellent workability, high water-retention, property, good mechanical properties and good construction properties.
and three level 1, 2, 3; R is the range of various factors.
Table 2 and Table 3 show that the amount of cementing materials and w/s are the major factors affecting mortar strength.
The more cement use, the higher the mortar strength is; the w/s and the dosage of FN admixture is the main factors affecting mortar fluidity.
TBDMM has a good physical-mechanical properties and good workability, and is in line with national development policy of new building materials.
Online since: July 2007
Authors: Lin Luo, Yun Qing Kang, Guang Fu Yin, Ke Feng Wang, Yu Zhang
These data provide an important step towards understanding mechanical loading factors contributing to degradation.
It is now believed that the influence of mechanical stress on biodegradation is an important factor [2].
However, relatively few studies are available in the literature about biodegradation properties of PLLA/β-TCP scaffold in SBF under compressive loading.
The control specimens were not subjected to degradation but tested for the original properties.
However, relatively few studies and little information are available in the literature about biodegradation properties of this porous scaffold in SBF under compressive loading.
Online since: June 2025
Authors: Ágota Drégelyi-Kiss, Áron Loránd
But due to the complexity of CT dimensional measurements, several influencing factors affect the accuracy of the method.
The precision and accuracy of dimensional measurements by CT are affected by several factors including the object of investigation and the measurement parameters.
One particularly significant factor related to the measured object is its surface quality, which plays a critical role in affecting the reliability of CT measurements.
Understanding its influence among other factors is essential for effectively utilizing CT in metrology.
Turgut, Experimental and statistical investigation of mechanical properties and surface roughness in additive manufacturing with selective laser melting of AlSi10Mg alloy, J Braz.
Online since: March 2018
Authors: Zwilla Oktoriana Hendri, Anugerah Rifaldi, Annur Fauzi Syaputra, Ummy Aisyah Rochaeni, Bahruddin Bahruddin
Amylose and amylopectin levels will affect the properties of starch itself.
One of the methods developed is the addition of filler to starch, so as to improve the mechanical properties of starch based biopolymer material [7,8,9].
The appropriate ratio of water to starch is also one of the factors improving the mechanical properties of the biopolymer [10].
Fig. 1 Effect of Filler Type to Tensile Properties of Sago Starch-Based Biopolymer The lowest tensile strenght properties are found in biopolymer with clay filler.
Water Uptake and Biodegradability Properties.
Online since: November 2005
Authors: Tsutomu Ezumie, Kenya Ueno
Epoxy resin is generally known to be a brittle material and it was convenient in the evaluation of interference phenomena among plural cracks because it is not necessary to take into account effects of the material properties as with polycarbonate, which often develops crazing [9].
Calculation of stress intensity factors in mixed mode deformation The stress intensity factor in the mixed mode deformation by the photoelastic method was determined according to the extrapolation method by Smith et al [13].
Stress intensity factors KI and KⅡ were determined by using equation in mixed mode deformation for materials with double reflection sensitivity according to the method of caustics14.
Conclusion This study conducted a tension test on specimens under the assumption that plural cracks occur in the material and determined the stress intensity factors by both caustics and photoelastic methods.
The factors were compared to each other and caustics of the increase and decrease of the K value of plural cracks were examined in terms of the distance between cracks, crack lengths, and the mixture ratio.
Online since: November 2013
Authors: Alimorad Rashidi, Mehri Imani, Mojtaba Shariaty-Niassar, Elahe Sarlak, Amir Zarghan
Carbon membranes have high adsorption capacitiy with respect to its incredible properties such as unique structural, electronic, optoelectronic, semiconductor, mechanical, chemical and physical.
The morphological properties of the aligned CNT membrane were investigated with scanning electron microscopy (SEM).
Unfortunately, there is no consensus in the competitive adsorption of metal ions, as researchers have attributed their different affinities to different factors.
These factors are related to the properties of these ions in aqueous solution and could affect surface binding and interaction energies or the accessibility of surface centers, which can be linked to the size of the species adsorbed.
Qiu, Investigation of factors affecting adsorption of transition metals on oxidized carbon nanotubes, J.
Online since: November 2016
Authors: Pierre Bélanger, Ricardo J. Zednik, Hector de Castilla
However, the piezoelectric properties are not sufficiently understood, partly due to the difficulties in characterizing this behavior at high temperature.
Thereby, mechanical properties, piezoelectric coefficients, and electrical constants can be deduced from an impedance measurement around a mechanical resonance frequency.
The impedance of the piezoelectric system is completely described by the intrinsic properties of the material.
A further expansion of the model would allow extraction of other piezoelectric coefficients or intrinsic properties.
Fritze, High-Temperature Electrical Conductivity and Electromechanical Properties of Stoichiometric Lithium Niobate, Diffusion Fundamentals 8 (2008) 6.1 – 6.7 [3] Y.
Online since: February 2013
Authors: Koloman Ulrich, Ingrid Kovaříková, Beáta Šimeková
Taking advantages of these positive factors, duplex stainless steels are widely used in the oil and gas, petrochemical, pulp and paper, and pollution control industries [1].
The optimum properties of duplex stainless steels are achieved when nearly equal proportions of austenite and ferrite are present in the microstructure.
On the other hand, excessive time in the 705–980 oC range can cause formation of intermetallic phases having a similar detrimental influence on properties.
The present study has been concerned with plasma arc welding PAW (Fig.1) and laser beam welding processes and their effects on size and microstructure of fusion zone then, on the mechanical and corrosion properties of duplex stainless steel.
[10] Bunček, V., Study of properties of welding duplex stainless steel with plasma.
Online since: April 2013
Authors: Yi Chia Liao, Huail Siang Liu, Fu Jen Cheng, Jen Ching Huang
The Study on Deposition Process and Mechanical Properties of Deposited Cu Thin Films Using Molecular Dynamics Jen-Ching Huang 1, 2 a, Yi-Chia Liao3, Huail-Siang Liu3 and Fu-Jen Cheng4 1 Department of Mechanical Engineering, Tungnan University, Taiwan 2 Research Center for Micro/Nanotechnology, Tungnan University, Taiwan 3 Institute of Mechanical Engineering, Tungnan University, Taiwan 4 Department of Electrical Engineering, Tungnan University, Taiwan a jc-huang@mail.tnu.edu.tw Keywords: Deposition Process, Young's modulus, Surface roughness, Copper, Molecular dynamics.
This paper studies the deposition process and mechanical properties of Cu thin films deposited on single crystal copper substrates with various surface roughnesses by molecular dynamics (MD).
Therefore, the substrate temperature and the substrate surface roughness were changed to study the influence of process parameters on the mechanical property of deposited Cu thin films.
Therefore, the attraction between atoms is an important factor in thin film formation.
a) b) c) Fig. 6 Surface morphology of Cu film of various deposition atoms (a) 512 atoms (b) 1024 atoms (c) 1536 atoms Conclusions This paper study the nanoscale mechanical properties of Cu thin films deposited on single crystal copper substrates with various surface roughness by MD.
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