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Online since: April 2008
Authors: Xin Lin, J. Luo, Yan Hong Ye, K.W. Liu
Thermophysical Properties.
The basic thermophysical properties are shown in Table 1.
The density is one of most relevant parameters of thermo-physical properties, which can determine the zone of Soft Reduction in the range of possibilities.
Table 1 The list of thermophysical properties.
(3) The soft reduction and other factors together will affect the solidification process, the mechanism is very complex and other further works needs to do.
Online since: March 2011
Authors: Jin Ping Xiong, Jian Yun He, Bing Qian Xia
The mechanical properties,thermal properties and coating properties of the ENLO /silica coatings were evaluated as the function of nano-silica content.
The nano-silica also improved the hybrid coating properties such as pencil hardness, solvent resistance and surface wetting properties.
Crivello, et al. [6] developed epoxidized plant oils (EPO) which could be cationically polymerized by the epoxy cross linking reaction and had good mechanical properties.
The effects of the nano-silica content on the mechanical properties,thermal property and coating properties of hybrid films were investigated. 2.
Surface properties of films such as smoothness, surface tension and adhesion are very important factors affecting coating industrial applications, which have a close relationship with the contact angle of coatings.
Online since: February 2018
Authors: Federico M. Mazzolani, Antonio Formisano, Hadi Monsef Ahmadi
Finally, it has been noticed that behaviour factors of perforated specimens have been increased with increasing adjoining distance among holes.
Mechanical properties and some geometrical dimensions of steel members, connectors and seismic devices are illustrated in Table 1.
For this reason, mechanical and geometrical properties of RC frame members, as well as boundary conditions, constraints, restraints and mesh type and dimensions adopted in the FEM model have been assumed as equal to those used in the experimental campaign performed by Choi and Park [26].
- The greatest behaviour factors are noticed for dual structures with SPSWs having the largest distance among adjacent holes
Uang, Establishing R (or Rw) and Cd factors for building seismic provisions, Journal of Structural Engineering, 117(1) (1991) 19-28
Online since: November 2016
Authors: Dagoberto Brandão Santos, Berenice Mendonça Gonzalez, Tarcísio Reis de Oliveira, Leandro Paulo de Almeida Reis Tanure, Cláudio Moreira de Alcântara
In this study, a comparison of microstructure and mechanical properties of the FSS ASTM 430 stabilized with niobium and ASTM 439 stabilized with niobium and titanium was performed.
Mechanical Properties.
Material Grain size [μm] ASTM grain size 430Nb 15 ± 1 9 ASTM 439 19 ± 1 8 Tensile Properties.
Table 3 – Tensile properties of the steels 430Nb and ASTM 439 with its mean errors.
The Ferritic Solution - Properties, Advantages and Applications: The Essential Guide to Ferritic Stainless Steels.
Online since: June 2009
Authors: Hong Tsu Young, Kuen Ren Chen
Chemical mechanical polishing (CMP) is a semiconductor process that is used to achieve global planarization.
The diamond pitch is relative to the number of diamonds and the scale of the total scratch time, but does not affect the profile of the scratch time.
There are still many researches considering the effect of pad properties, like pad roughness, and other polishing conditions on the polishing removal rate.
The geometry of a disk-type dresser can be separated into three aspects, while other factors will not affect the scratch trajectory.
In addition, the distribution area of diamond is relative to the number of diamonds and then will affect the scale of scratch times.
Online since: June 2010
Authors: G. Madhusudhan Reddy, K.Ratna Kumar, K. Srinivasa Rao
Introduction The effect of microstructure on metallic alloys properties has been highlighted in various studies and particularly, the influences of dendrite arm spacing upon mechanical properties and corrosion resistance[1].
It is well known, that electron beam welds of AA2219 aluminium alloy exhibit superior mechanical properties compared to welds made using gas tungsten arc (GTA) welding [3,4].
Optical microscopy (OM) and scanning electron microscopy with energy dispersive spectroscopy (SEM-EDS) with secondary electron image at 15kV and 20kV has been carried out on weld, nugget, PMZ, thermo-mechanically affected zone (TMAZ) and heat affected zone (HAZ) of the samples.
Fig. 6 Optical micrographs of PMZ of GTA welds of AA6061-T6 (a) and (c) optical of CCGTAW, (b) and (d) optical of PCGTAW Slightly coarser grain size and more amount of Mg2Si are favorable factors for inducing liquation at the grain interior and boundaries in 6061-T6 condition, compared to that of T4 condition.
Microstructure of friction stir welded A356 alloy consisted of nugget zone, thermo mechanically affected zone and heat affected zone (Fig.9).
Online since: February 2011
Authors: Zhao Xiang Deng, Hai Jun Zhao
Measurement of the Incident Sound Power in Ducts and Effect factors Analysis Zhao Hai-jun1,a ,Deng Zhao-xiang2,b 1 Department of Mechanical Engineering, Luoyang Institute of Science and Technology, Luoyang 471023, China 2 State Key Laboratory of Automotive NVH and safety control,Chongqing 400039, China ahjzhaoly@sina.com, bzxdeng@equ.edu.cn Keywords: Incident sound power, Effect factor, Two-microphone method Abstract: Based on two-microphone transfer function method, the measuring method of incident sound power in duct is introduced, The special test equipment is built, and the test and measurement program of incident sound power in duct is written, and effect factors of measurement are analyzed.
Hans and Mats more systemically researched production reason of measurement error and effect factors in 1986, the factors mainly included transmission function, spacing of the microphones, and so on.
As measurement of the incident sound power is realized with no ready-made program, it need self design special program to measure accurately, and analyzing effect factors is carried through.
Transfer function method of measuring in-duct acoustic properties.I.Theory.
Influence of errors on the two-microphone method for measuring acoustic properties in ducts.
Online since: November 2016
Authors: Kai Henning Lietzau, Andreas H. Foitzik, Maria Richetta, Carsten Stollfuß
Foitzik1 1 TH Wildau, Institut for Applied Bioscience, Hochschulring 1, 15745 Wildau, Germany 2 Department of Industrial Engineering, University of Rome “Tor Vergata”, 00133 Rome, Italy Via del Politecnico, 1, 00133 Rome, Italy Keywords: ESPI, Ferro Fluids, Nanoparticles, HeLa, Detection of Displacement Abstract The determination of mechanical properties can provide insight into complex biochemical processes such as the cell cycle and even the progression of diseases.
Several applications have been developed to analyze the linkages between mechanical properties and the cellular state.
Results One important factors which influences the deformation is the applied time of excitation.
As seen in figure 6, a refraction artifact affects all obtained results.
Mechanical models for living cells - a review.
Online since: August 2014
Authors: Wen Jin Zhang, Ai Ai Zhang, Wei Fang Zhang, Qi Song
Fig. 1 The Relationship between Atmospheric Corrosion and Water Film Thickness on Metal Surface Factors of Marine Atmospheric Influencing Aluminum Alloy Corrosion There is so many factors affecting the corrosion process of aluminum alloy, which can be broadly divided into two categories.
The first one is environmental factors, and the second one is the material factors, namely its material type, its alloying elements and other internal factors.
Thus, Cl-concentration is one of the factors affecting the aluminum corrosion.
The alteration between wet and dry surface leads to higher salt concentration, thus affecting the corrosion rate of the material [4].
Meanwhile rainfall will affect the frequency of alternation between wet and dry state in marine atmosphere, thus affecting the corrosion rate of aluminum alloy.
Online since: June 2008
Authors: Xiang Ling, Xi Hai Shen
The peculiarities of welding dissimilar materials are caused by differing physical, mechanical and physical-chemical properties, which determine their interaction with the new joining phase.
Many influence factors complicate the subject, damage and failure of welded joints is a very complex process.
Finite Element Analysis Material Properties.
Material choices are limited by their suitability for use in the lap welded joints by mechanical and physical properties.
The physical properties used in the simulation are shown in Table 3, which shows all the thermal and mechanical properties of borosilicate glass and Kovar alloy.
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