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Online since: May 2025
Authors: Mai Kobayashi, Tomoya Nakae, Sengo Kobayashi, Satoshi Okano
The inhomogeneous oxygen distribution would significantly affect the microstructure formation of an oxygen-containing Ti-Nb alloy.
Although titanium alloys are used in a broad range of fields, the cost of titanium alloys is one of the factors preventing the expansion of their use.
The inhomogeneous phase transformation of b phase should affect mechanical properties and shape memory effects of Ti-Nb alloys.
The inhomogeneous oxygen distribution would significantly affect the microstructure formation of oxygen-containing Ti-Nb alloy.
Here, we discuss the slow diffusion of oxygen in Ti alloy that may affect the microstructure formation.
Online since: May 2010
Authors: Clélia Gaussens, Bouchra Hassoune-Rhabbour, Valérie Nassiet
Keywords: thermosetting resins, structural bonding, adhesives formulations, thermomechanical properties.
Epoxy resins are formulated to generate specific chemical and thermomechanical properties.
Then, to qualify and quantify the mechanical properties of these four adhesives, thermomecanical studies will be performed on bulk samples for which a new cure cycle will be proposed.
Formulations Many applications require epoxy specific properties like low weight, corrosion resistance or good adherence.
The formulations A, C and D will enable us to determine the influence of the thermoset resin nature on the properties of the adhesive.
Online since: March 2006
Authors: Sun Kyu Kim, Young Nam Kim, Kwang Hee Im, In Young Yang, Je Woong Park, David K. Hsu
., Iksan National College, Iksan Chonbuk 570-110, Korea 3 School of Mechanical Engineering, Chosun University 375 Seosuk-dong, Dong-gu, Kwangju 501-759, Korea 4 Center for Nondestructive Evaluation, Iowa State University,IA 50011, USA 5 Department of Automotive Eng., Woosuk University 490, Hujung-ri, Samrae-up, Wanju-kun, Chonbuk, 565-701, Korea a jwpark@chosun.ac.kr, biyyang@chosun.ac.kr and c*khim@woosuk.ac.kr(corresponding author) Keywords: Ultrasonic Shear wave, Defect Angle, CFRP Composite Laminates, Stacking, Acousto-Ultrasonics, Azimuthal Scanner Abstract.
Because the layup of composite laminates influences there properties, the strength of composites depends on layup sequence of CFRP laminates.
The first assumption used is that the interface and beam spreading losses are negligible, that is, all a signal reduction factor terms equal one.
CFRPs made from uni-directional prepreg sheets of carbon fibers(CU125NS) by Korea HANKUK Fiber Co., have the material properties.
It is thought that the fiber direction of CFRP laminates affected to A-U signals.
Online since: June 2020
Authors: Anish Sachdeva, Sehijpal Singh, Mukesh Kumar, Rajiv Kumar Garg
Many properties of nanomaterial depend upon the size of particle, there for the analysis for the particle is very important[15].
The Taguchi approach has investigated the influence of parameters on the properties of graphene.
By using ANOVA, the effect of factors can be estimated, and by orthogonal arrays, the minimum number of experiments are required.
The leading cause of the difference in the properties of CNP is because of using different carbon precursor or different preparation methods.
[5] Charoenchai M, Tungbunsuk S, Keawwattana W, Influence of Graphene Nanoplatelets on silica-filled natural rubber composites: Dispersion mixing and effect on thermal stability, rheological and mechanical properties, Materials Science Forum. 943 (2018) 100–104
Online since: March 2024
Authors: Fakhreza Abdul, Vuri Ayu Setyowati, Sungging Pintowantoro, Yuli Setiyorini, Alif Azizia P. Maulidia, Delta Zul Fauzi
Each type of battery has its properties, advantages, and advantages.
Of these five types of batteries, the NMC battery is the battery that has the most superior properties compared to other types of batteries for the use of Electric Vehicles [2].
Each compound has properties, advantages, and disadvantages [13]. extraction of laterite nickel ore, where the neutralizing agent MgO provides excellent precipitation rates.
It can be one of the factors that can affect the process of deposition of elements so that the chemical composition of the targeted component, namely Nickel, is lower when compared to previous studies [22].
One of the factors that cause the Mg, S, and O content to be quite dominant is the number of MgSO4 salt compounds formed.
Online since: December 2012
Authors: Sarim Al-Zubaidy, Raikhan Tokpatayeva, Serik Tokbolat
Fig. 1 highlights the factors that can present a global solution by reducing energy consumption through implementing passive design strategies and use of renewable resources.
These factors can be utilized, by careful design, for the benefit of the building, in light of energy consumption [2].
However, a proper design could help reduce the mechanical load to great extents.
The scope of the current study does not permit examining the effect of all of the above factors, emphasis will be placed on buildings orientation and configurations.
This analysis tool is used to calculate the distribution of temperature, velocity, pressure and other properties of fluids, in other words, to provide data on temperature and airflow distribution in and around considered buildings.
Online since: March 2010
Authors: Zhi Li Long, Zhan Hui Li, Yun Xin Wu
Higher Order Harmonic Wave and its Effect on Thermosonic Bond System Zhanhui Lia, Yunxin Wu b, Zhili Longc College of Mechanical & Electronical Engineering, Central South University, Changsha, P.R.
The contact interface can be modeled as a spring interface with equivalent stiffness properties when the ultrasonic wave length is much greater than the roughness scales of the contact interface.
Different contact interface conditions can affect the transducer performance in packaging practice.
Fig. 7 Bond strength of chip The contact interface pressure between horn and bond tool is important factor which effect ultrasonic propagation.
Online since: September 2013
Authors: Hai Long Wu, Bing Zhang Huang, Xi Qiang Li, Qiong Qiong Guan, Bang Biao Huang, Ji Zhen Zhu
In the process of blank forming , due to the adhesive force of shale is small, so the blank forming is mainly depend on the interaction between mechanical extrusion pressure and body moisture and various minerals.As the larger stress difference form blank outer surface and body interior, the body will crack.The results show that, the temperature is an important factor to control the formation of cracks in the brick body, so the body in the process of burning the temperature control is particularly important.
These cracks will further increase in the roasting stage, will greatly affect the compressive strength of the brick body.So in the adobe drying must choose a reasonable temperature program, which not only can control the number of cracks effectively, but also improve the quality of bricks.
To prevent the cracks appear at this stage, to ensure that the basic properties of brick.
Online since: February 2012
Authors: S. T. Chang, L.W. Tsay, W. J. Li
The mechanical properties of the Ti-15-3 alloy are largely dependent on the microstructures, chemical composition and prior working history.
In addition, the strength of β alloys is strongly affected by the homogeneous and fine precipitation of α phase and the refinement of β grains [4].
Attention was paid to the specimen showed changes in fracture features in different stress intensity factor range △K and/or stress ratio.
Online since: December 2011
Authors: Ling Yun Zhang, Zhi Ren Han, Chang Bao Zhao
Moreover, evident shape distortion appears after unloading for the poor shape holding ability, and seriously affects the geometric accuracy of workpieces.
The factor of complex changes during the course of friction was ignored.
Uniaxial tensile tests were conducted to reveal the mechanical and forming properties of TC1Mδ1.45 respectively in the 0º, 45º and 90º direction from the RD, elastic modulus(E) were 126.9GPa, 113.4 GPa and 105.7GPa , Poisson’s Ratios(μ) were 0.33,0.31 and 0.29, yield stresses were 684.8 Mpa, 608.6MPa and 535.3MPa, normal anisotropy coefficient (r) were 1.09, 1.70 and 1.65, the average strain hardening index (n) was 0.093, the coefficient K in stress strain curve was 892.1MPa.
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