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Online since: June 2008
Authors: Viktor Bánhidi, László A. Gömze
Series of experiments were executed to measure the effect of the type and the concentration of the applied waste materials on the thermal conductivity and mechanical properties of the final brick product.
Our measurements indicate that the seed-shell additive had affected the insulating properties the most (up to 37% less thermal conductivity).
The mechanical tests also show the same decrease of the measured properties as a function of concentration of the added organic waste materials.
The similarity of the change in properties is caused in all cases by the pore structure as it determines all these properties.
From the point of view of the mechanical properties the most applicable additive is the saw dust.
Online since: September 2014
Authors: Xiao Lin Qian, Lin Wang, Xiao Hua Yang, Yong Xue Lin
Weak gel has shear thinning property.
Fig.2 Influence of mass concentration of Fig.3 Influence of mass concentration of crosslinker polymer on apparent viscosity of weak gel on apparent viscosity of weak gel Impact of Salinity to the Viscosity of Weak Gel The depth of salinity of the polymer gel matrix solution is also an important factor which affects performance of the gel.
Besides, different reservoir has different salinity, the impact of salinity has also become one of the one of the major factors which limits their range of applications.
Viscosity properties of aqueous solution in brine at higher temperature for twin-tailed l hydrophobically associating tercopolymers P(AM/NaAA/DiC6AM).
The factors to influence the behavior of polymer weak gels in high salty media.
Online since: March 2010
Authors: Hong Ling Chen, Shi Chun Yang, Wen Hui Li, Sheng Qiang Yang
Research of Uniformity and Effect on Crankshaft Barrel Finishing Wenhui Lia, Shengqiang Yangb , Shichun Yangc and Hongling Chend College of Mechanical Engineering, Taiyuan University of Technology, Taiyuan Shanxi, China, 030024 a wenhui_li7190@126.com, btutysq@263.net.cn, cyangsc@tyut.edu.cn, dchen-hl@263.net Keywords: Finishing, Barrel finishing, Crankshaft, Uniformity, Effect Abstract.
Based on its finishing mechanism, factors and effect affecting finishing uniformity are analyzed by theory and experiment, finishing effect is defined, which provides basis for parameters selection of crankshafts barrel finishing.
Consequently, it has effects of finishing crankshafts, increasing surface quality and improving the physical-mechanical properties [1-3]. 1-gearing 2-crankshaft 3-machining medium 4-crank and slider mechanism 5-slot barrel Fig.1 Principle diagram of horizontal spindle barrel finishing Based on barrel finishing mechanism, relative motion and force between the particle and crankshaft are main factors affecting finishing efficiency and finishing uniformity.
Wang: China Mechanical Engineering, Vol. 12 (2001) No.1, pp.300-302.
Online since: May 2014
Authors: Florian Zeller, Nirdesh Ojha, Holger Reinecke, Claas Müller
Characterized by excellent material properties such has high mechanical, thermal and chemical stability technical ceramics such as ZrO2, SiC, Si3N4 and AlN are increasingly being used for various applications.
Relevant material properties of these ceramics are presented in Table 3.
Table 3: Material properties of the ceramics as obtained from the manufacturer.
The significant parameters affecting the MRR and TWR are presented in Table 4.
Among the factors analyzed, current was the most significant factor.
Online since: February 2024
Authors: Wai Yee Yeong, Samuel Lee, Guo Liang Goh, Boon Siew Han
Various characterizations such as tensile test, lap shear test, and 3-point bending test have been conducted to shed some lights on the fundamental mechanism that is affecting the adhesion of the multi-material interface.
This suggests that the comparison of data between this work and other works for other material combinations obtained in this work should be approached with caution because various factors such as the material property, print settings and test methods.
In this work, we investigated the adhesion properties of various polymeric composites in a soft-rigid bilayer structure and found that the addition of fillers generally resulted in weaker adhesion and poorer fatigue properties compared to pure polymers.
Future research should explore incorporating mechanical interlocking features and surface treatments to enhance adhesion properties at multi-material interfaces.
Vietor, "Determination of influencing factors on interface strength of additively manufactured multi-material parts by material extrusion," Applied Sciences, vol. 9, no. 9, p. 1782, 2019
Online since: March 2008
Authors: Yu Jun Zhang, Guang Neng Dong, Jun Hong Mao, You Bai Xie
Molecular Dynamics Studies on the Growth and Structural Properties of Hydrogenated DLC Films Y.J.
The hybridization of carbon atoms greatly affects the properties of hydrogenated DLC films.
Introduction Hydrogenated DLC (Diamond-like carbon) films have superior mechanical, electrical and tribological properties and can be applied as wear resistant and protective coatings on bearings of compressor and expander used in fuel cells.
The leading role of hydrogen atoms while depositing DLC films with super-low frictional coefficients has been believed as a critical factor in literature. [1,2,3] However, the mechanism that affects the frictional coefficient of hydrogenated DLC films has not been disclosed exactly. [4,5,6,7] In general, the structure properties of DLC films greatly affect and determine the frictional properties.
The deposition source and impact energy are two key factors affecting the final frictional properties of hydrogenated DLC films while chemical adsorption can occur under a higher energy impact.
Online since: November 2013
Authors: Ting Zhi Liu, Huan Ke, Shu Wang Duo, Hao Zhang, Xiang Min Xu, Zi Hao Zhou, Xiao Yan Fei
The morphologies of the coatings changed obviously with the various VB, and VB could improve the mechanical properties of CrN coatings.
Besides, TS also played a very important role in improving the mechanical properties.
Fig.7 is a graph about the mechanical properties of CrN coatings at different VBs (Left: R.T.; Right: 300°C).
CrN coating with the parameters (TS=300°C, VB=-30V) showed wonderful mechanical properties.
In addition, VB could improve the mechanical properties of CrN coatings as well as TS was also a very key factor.
Online since: February 2019
Authors: M.S. Denisov
Furthermore, the combination of mechanical, physical and chemical properties of morphic alloys cannot be obtained by any existing kind of metal working.
The given test results bring out the classification of the main factors influencing the structural and phase changes of final castings: - kinetic factor.
- technological pressure factors (temperature, speed, compression ratio), which influence the size and geometry of grains and phase components.
Mechanical properties of materials under high pressure.
S., Influence of pressure application speed onto the structure and mechanical properties of A99 aluminum, Metal technology. 1 (2017) 2-7
Online since: February 2014
Authors: He Xue, Fu Qiang Yang, Jin Tian
Although the steel at high temperature has the performance of high strength, oxidation resistance, and good weld ability [1, 2], the stress corrosion cracking (SCC) would still occur in 2.25Cr1Mo in high temperature water environment, and it is one of the key issues affecting the safety and life of nuclear power plants.
Finite Element Simulation Material Mechanical Model.
The mechanical properties and creep parameters of 2.25Cr1Mo steel are listed in Table 1 [6].
Table 1 Mechanical parameters of 2.25Cr1Mo steel.
Tu: China Mechanical Engineering, Vol. 16 (2005) No.5, p.456.
Online since: June 2012
Authors: G.Q. Tan, Hui Jun Ren, Peng Xiong
The piezoelectric properties of the ceramics were investigated.
Piezoelectric properties measurement.
The electromechanical coupling factor (kp), mechanical quality factor (Qm) and dielectric temperature spectra were measured and calculated by the reasonance-antiresonance method using an Impedance Analyzer (Agilent E4980A, America).
The planar mode electromechanical coupling factor (kp) and mechanical quality factor (Qm) of the K0.5Na0.5Nb1-xTaxO3 ceramics were given in Fig.2(b).
The Ta5+ doping affects the piezoelectric properties of KNN ceramics to a certain degree due to the increase of the tetragonality of the lattice, and lead to the decrease in the TT-O and TC-T.
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