Search Options

Sort by:

Sort search results by

Publication Type:

Publication Type filter

Open access:

Publication Date:

Periodicals:

Periodicals filter

Search results

Online since: November 2014
Authors: K.K. Mitra
However designer will have to judiciously compare the Properties, Climatic conditions, Thickness, Cost, Heat / Cold Ingress and payback period figures to rightly select the insulation material.
In this case, the drawback is no mechanical abuse can be allowed on the Gypsum or ‘E-boards.
An extra density allows acoustical properties achievements.
One of the critical factors to selection of good foam product is the temperature rating which in any case should be at least 65-70 °C so as to withstand the temperature gradient of 65+ °C of the typical finishing treatments on top.
Some of these panels quality have FM approval to cater windage & fire safety factors.
Online since: April 2008
Authors: Mark Bush, Xiao Zhi Hu, Tarek Qasim
The combination of a hard, brittle outer layer and a compliant, tough inner layer offers high wear resistance and damage tolerance, factors that are crucial to the lifetime of such structures.
Further studies have examined the dependencies of critical loads on material properties such as interlayer elastic modulus mismatch as well as indenter/coating modulus mismatches [15-16].
Critical loads PR to initiate the radial cracks are significantly affected by the indenter modulus (Fig. 3).
All known damage modes should be evaluated, as well as geometrical variables and materials properties.
Mechanical characterization of dental ceramic using Hertzian contacts.
Online since: July 2008
Authors: Ju Long Yuan, Miao Qian, Zhi Wei Wang, Yong Dai, Dong Qiang Yu, Yi Yang
Meantime, damaged layer where contamination such as remaining abrasives and residual stress exists is also one of primary effect factors for apparatus performance.
Typically, as one of loose abrasive machining, CMP (Chemical Mechanical Polishing or Planarization) technology can obtain Ra of mirror-surface less than 10nm [1] and thickness of damaged layer less than 100nm [2], but the efficiency is very low.
Table 3 Properties of silicon wafer Properties of silicon wafer Description Size [mm×mm×mm] 15×5×0.7 Crystal plane 111 Density 2.3290 Boiling point 3265 1 2 3 4 5 7 6 8 9 1-rotatable clamp 2-trimming ring 3-rotatable wheel 4-luggage-hole 5-SAGP 6-workpieces 7-gooey 8-load weight 9-basic piece Fig. 5 The structure of Nanopoli-100 Fig. 6 The position where workpieces are stuck to the basic piece(unit: mm) Measurement Aparatus.
Therefore, load or rotating velocity does not significantly affect the surface roughness.
Semibonded abrasive grinding plate and its 'trap' effect: submitted to Chinese Journal of Mechanical Engineering
Online since: December 2010
Authors: Ingvar L. Svensson, Magnus Wessen, Mathias König
Mechanical Engineering/Materials and Manufacturing - Casting, School of Engineering, Jönköping University, Gjuterigatan 5, SE-55111 Jönköping, Sweden a mathias.konig@jth.hj.se, bingvar.svensson@jth.hj.se, cmagnus.wessen@jth.hj.se Keywords: CGI, Chill Formation, Chill Wedges, Microstructure Formation, Simulation Abstract The influence of alloying elements on the chill formation in Compacted Graphite Iron (CGI) is investigated.
The traditional engine material, Lamellar graphite iron (LGI), has reached its limits regarding mechanical properties meaning that a replacement is required.
The high solidification- and cooling rates in thin sections cause heterogenities in the microstructure, which result in an undesired variation in physical and mechanical properties.
The purpose of this paper is to investigate how the chemical composition and cooling conditions affect chill formation in chill wedges.
To avoid chill formation two main factors are usually adjusted; chemical composition and inoculation.
Online since: December 2008
Authors: Hans Joachim Müssig, Jaroslaw Dąbrowski, Seiichi Miyazaki, G. Lippert, S. Inumiya, G. Kozłowski, G. Łupina, Y. Nara, A. Ohta, Y. Pei
The Influence of Defects and Impurities on Electrical Properties of Highk Dielectrics J.
Interface dipole moment formation has been invoked as a general mechanism affecting the barrier seen by the carriers53 .
We estimated the activation energies and the pre-exponential factors from the Arrhenius plot of the diffusion coefficients fitted in this way to the experimental data.
Parsons, "Properties of La-silicate high-K dielectric films formed by oxidation of La on silicon", J .Appl.
Auluck, "Electronic structure and optical properties of rare earth sesquioxides (R2O3, R=La, Pr, and Nd)", J.
Online since: September 2024
Authors: Manh Tuan Nguyen, Thi My Chinh Do
It boasts high strength, excellent surface properties, and is easy to construct.
o The air void of porous asphalt concrete can be affected by several blows.
Hao, "Influential Factors and Evaluation Methods of the Performance of Grouted Semi-Flexible Pavement (GSP)—A Review," Applied Sciences, vol. 11, no. 15, pp. 6700-6725, 2021
Huang, "Influence of the composite interface on the mechanical properties of semi-flexible pavement materials," Construction and Building Materials, vol. 397, 2023
Shankar, "Effect of aggregate gradation and bitumen type on mechanical properties of semi-flexible asphalt mixtures," Case Studies in Construction Materials, vol. 18, 2023
Online since: February 2013
Authors: Xiao Ke Li, Qing Shan Yang, Xiao Yong Huang, Bin Jiang, Fu Sheng Pan
This would be contributed to a better understanding of the factors controlling grain refinement and provide an outlook of future research in this field.
With the increase of Al content, the effect of refinement behavior decreases due to changes of Al/Ca ratio, which would affect the physical and chemical characteristic of Mg matrix.
Based on the X-ray powder diffraction data, the atom positions in the unit cell and the structure factor of planes and using the method described before 16, three close or near close packed planes have been identified, which are , and of Mg, , and of Al2Ca, respectively.
Wu, Structure stability and mechanical properties of Mg–Al-based alloy modified with Y-rich and Ce-rich misch metals, Journal of Alloys and Compounds, 509(2011), L187-L193
Homma, Effects of different cooling rates during two casting processes on the microstructures and mechanical properties of extruded Mg–Al–Ca–Mn alloy, Materials Science and Engineering: A, 542(2012), 71-78
Online since: June 2011
Authors: H.M. Ghasemi, J. Rassizadehghani, Mohammad Emami
Introduction The wear resistance of materials is one the most significant mechanical properties when there are load and relative motion between operating surfaces of a machine components.
There are various parameters which affect wear resistance of a material.
Cheikh Larbi et al [1] showed that some intrinsic properties of a material like surface hardness and residual stress are of vital importance to its wear resistance.
Even though many studies have been carried out to investigate the role of different factors in the wear behavior of nitrided steels, it seems that the role of the temperature has been neglected.
Online since: August 2014
Authors: Bao Jun Zhang, Wei Hong Bi, Yu Zhang, Qiang Liu, Jing Wei Xing
It changes optical properties of the glass to meet some specific requirements [1,2].
Therefore, it is very important to detect color difference of coated glass for controlling its quality and improving the coating properties [3,4].
And correcting fluctuation feedback factors in time.
In this paper a method for modulating light source to correct the backgroud and light errors was present.The light was modulated by mechanical aperture.
Figure 3 shows that the unmodoulated data curve shows a similar periodic fluctuations, and peak-peak is around 0.8, when the light source is not modulated, which has heavily affected accuracy of color-difference results and cannot meet the requirements of high-precision measurement.
Online since: March 2013
Authors: Xu Tao Zheng, Sheng Zeng, Bing Sun
At the same time, due to the influence of various factors,such as the construction process and working environment, and so on, the uncontrolled phenomena of large area surrounding rock, caused by anchorage quality problem, are often happened.
J.G Chen et al.[4]established the acoustic characteristic theory model related to bolt mechanical properties.
Maybe it is resulted from uneven vibration in pouring concrete of gravel with relatively larger size, which not only affect uniformity in concrete but also bond properties in steels thus impacting on signal feature.
Showing 23481 to 23490 of 26166 items