Search Options

Sort by:

Sort search results by

Publication Type:

Publication Type filter

Open access:

Publication Date:

Periodicals:

Periodicals filter

Search results

Online since: October 2022
Authors: S. Sivaganesan, S. Muzeer
Hybrid Aluminium Metal Matrix Composites are achieved the potential mechanical properties compared to single reinforced composite materials.
The lifespan of the materials is affected by a wide range of factors, and the composition used has a significant impact on the quality of life.
AA6061 chemical composition and mechanical properties are mentioned in Table 1&2.
The other two factors sliding distance and velocity provide less volume loss compared to load factor.
The addition of Sic and ZrO2 reinforcements are improved the mechanical and wear properties of hybrid composites.
Online since: May 2015
Authors: Panagiotis Kyratsis, Dimitrios Tzetzis, Gabriel Mansour, Evangelos Hatzikos, Apostolos Tsagaris
The results proved that the use of the silica nanoparticles significantly increase the strength of the hook, while affect considerably its tensile fracture behavior.
Materials The most appropriate material in terms of mechanical properties while reducing weight is the carbon fiber.
The final material selection is based on the fact that carbon fibers are brittle materials, thereby aramid fibers should be used along so to provide adequate tribological properties due to friction with the rope.
These properties were used for the loading simulation of the hook using finite element analysis (FEA).
From the experimental results it can be concluded that the epoxy resin, when reinforced with silica nanospheres, significantly improves the mechanical properties due to the uniform dispersion of nanospheres in the mixture.
Online since: April 2014
Authors: Vladimir Borisovich Vykhodets, Valentin Yakovlevich Mitrofanov, Tatiana Eugenievna Kurennykh, Anatoly Yakovlevich Fishman, Robert Grigorievich Zakharov, Eduard Andreevich Pastukhov, Sofya Aleksandrovna Petrova, Sergei Aleksandrovich Uporov
Magnetic properties of the treated oxides were measured in the temperature range of 4-300К.
Mechano-activation of the oxide materials affects their structural modification, the concentration of defects, charge and orbital state of the cations, diffusion, electrical and magnetic properties.
Magnetic properties of mechanoactivated manganese oxides.
Effect of Crystal Size Reduction on Lattice Symmetry and Cooperative Properties.
Structural Properties of Mechanoactivated Mn2O3.
Online since: February 2007
Authors: Ai Ping Yang, Hong Li, Ji Dong Li, Hong Zhao Xiang, Yong Gang Yan, Yu Bao Li
Various specimens, which summarized in Table 1, were prepared to evaluate their properties and to discuss the effect of the ratio of composite to foamer (C/F, w/w) and the ratio of n-HA to PA66 (n-HA/PA66, w/w) as well as the weight of mixture used per mold (W, g) on the final performances of porous species.
XRD (X'Pert pro-MPD, Philips) and FT-IR (Thermo Nicolet 170SX FT-IR Spectrometer) were employed to investigate the influences of the thermal-pressing procedure on the properties of n-HA/PA66 composite after formation of porous species.
These results suggest that the weight of the mixture used per mold is one of the key factors affecting pore structure and porosity.
The results above mentioned show that not only porosity but also pore structure affect the mechanical performance of porous material dramatically.
Results of porosities and mechanical properties of porous materials measurements Series Total porosity Mean (%) Compressive strength Mean±standard deviations (MPa) A1 A2 A3 B C 57 44 36 44 50 22.4±3.2 43.2±2.1 46.3±2.4 19.6±1.7 13.2±2.6 The XRD patterns obtained for the n-HA/PA66 composite powder before and after formation of porous species are shown in Fig. 2.
Online since: March 2012
Authors: Hong Liang Xiang, Dong Liu, Jin Chun Fan, Pei Pei Guo
Effects of Antibacterial Treatment Temperature on the Properties of Copper-Bearing Antibacterial Duplex Stainless Steels Hongliang Xianga, Jinchun Fanb Dong Liuc, and Peipei Guod School of Mechanical Engineering of Fuzhou University, Fuzhou 350108 PR.
However, antibacterial heat treatment would affect other properties of materials.
The aitibacterial properties were studied by film-cover method.
The two factors play opposite role in the formation and stability of passivation film on the surface of stainless steel and the corrosion resistance depends on which is the main factor.
The formation mechanism of the pits could be realted to the erosive properties of Cl-.
Online since: August 2014
Authors: Tao Jiang, Xue Mei Wen, Wei Zhang, Yu Ping Chen, Ying Xiao, Chen Xue Xiong, Wei Zhu, Jian Li
Among the myriad factors that ultimately influence the global properties of epoxy/silica composites, filler dispersion and interfacial interactions are the most crucial ones affecting the mechanical properties of the composites [3].
This special polydopamine modified silica reinforced composite should possess good mechanical properties due to the strong interface adhesion which allowed the stress to transfer across matrix and the thorns.
This suggested that the polydopamine layer play an important role in improving mechanical properties of the composites by strengthening filler-matrix adhesion.
Yanumet, The adsorption of cationic surfactants on BN surface: Its effects on the thermal conductivity and mechanical properties of BN-epoxy composite, Colloids and Surfaces A: Physicochem.
Miao, Improved dielectric and mechanical properties of silica/epoxy resin nanocomposites prepared with a novel organic-inorganic hybrid mesoporous silica: POSS-MPS, Mater.
Online since: May 2012
Authors: Hai Qing Ren, Hai Bin Zhou
Factors Influencing Structural Performance of Finger-Jointed Chinese Fir Lumber Haibin Zhou1, a, Haiqing Ren1, b 1Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing 100091, P.R.
The paper evaluated the factors influencing structural performances of FJ Chinese fir lumber.
Many factors are known to affect the strength of finger-joints.
The factors Considerable work related to the influence of geometrical joint parameters has been done on several species [3~10].
Factors influencing the flexural properties of fingerjointed southern pine LVL.
Online since: September 2013
Authors: Zhi Yong Yang, Jun Hu, Zeng Chan Lu, Song Zhao
This article mainly study on the law of the influential factors of the different heat-treated FGD gypsum on the performance of slag cement to determine the manner and feasibility of resource utilization in cement-based materials[7,8].
Conclusion (1)The heat treatment conditions and dosage are important factors of the setting time and strength of the FGD gypsum.
(2)In the case of adding the same amount of the FGD gypsum, the heat treatment process is an important factor to affect the setting time of cement.
Influence of FGD Gypsum on the Properties of Portland Cement.
Coalash, 2011, 4: 24-26 [5] Pavel Tesarek. flue gas desulfurization gypsum: Study of basic mechanical, hydric and thermal properties [J].
Online since: December 2010
Authors: Yong Tang, Qiang Wu, Bang Yan Ye, X.F. Hu
A coupled thermo-mechanical finite element model of metal pore drilling process was established.
Introduction Drilling process depends on a great deal correlative factors, such as material, drilling condition, geometer parameter of bit, cooling condition and so on.
First, twist drill has different cutting speeds and tool angle which are dominant affecting factors on chip forming.
Table 2: Chemical compositions of materials 1Cr18Ni9Ti C ≤0.12 Si 0.1 Mn 2.0 P 0.035 S 0.03 Cr 17.0~19.0 Ni 8.0~11.0 Table 3: Physical properties of material rigidity(HB) ≤229 yield intensity GPa 0.3 tensile strength GPa 0.6 elongation percentage % 55 impact toughness MJ/m2 2.45 coefficient of thermal conductivity W/(m. 0C) 16.3 Simulation and analysis.
[5] Zhao JiTeng.Application of Mechanical Engineering ABAQUS 6.6[M].china water conservancy and electric power press.China.2007.
Online since: May 2015
Authors: Daniela Kalincová, Dagmar Jakubéczyová, Rudolf Kaštan
Properties of the material of coins vary during their production and there is the so-called operational degradation that can be caused by an inappropriate technology of manufacturing.
All these factors affect the reliability of dies expressed as service life – number of coins produced by one die.
Determination of selected mechanical properties: dynamic hardness, adhesion - indentation Rockwell test, service life.
Selected mechanical properties High operational loading of coining dies (approx. 750 strikes per min) result in strict requirements on the quality of materials and technological procedures during their manufacturing.
Tab. 1 Coating thickness measured by Calotest and mean values of selected mechanical properties of coining dies Coat Thickness [µm] Nanohardness [GPa] Adhesion – HF class Number of produced coins CrN 2.80 - 2.90 14.06 HF 2/3 50 060 TiCrN 1.09 - 1.76 30.70 HF 1/2 183 751 WC/C 4.94* 12.38 HF5 28 659 * the average value of three layers: t1+t2 +t3 (2.51 µm+0.61 µm+1.82 µm) CrN TiCrN WC/C Fig. 5 Appearance of indentations after Rockwell indentation test using load 1500 N Summary Of the realized tests we present the following conclusions: · of the tested and documented surfaces of coatings the TiCrN coat exhibited the finest morphology, i.e. the lowest roughness, highest hardness – 30.70 GPa and excellent adhesion properties of class HF1/2
Showing 8751 to 8760 of 25935 items