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Online since: February 2014
Authors: Alva Edy Tontowi, Joko Triyono, Rochmadi Rochmadi, Widowati Siswomihardjo
HA is chosen because its biocompatible properties and characteristics that resemble bones.
Most research of this material has been directed to obtain the mechanical properties and better as biocompatible properties and to simplify the fabrication processes in the future.
SEM Morphology of : a) TEGDMA/CQ; b) TEGDMA/CQ/HA/Shellac Future Works The study will be followed by adding the glass of fibres as a reinforcing material in order to increase mechanical properties.
From this research we hope it can be obtained a new material that has properties as a biomedical materials.
[3] Roeder Ryan K, Michael M Sproul, Charles H Turner (2008), Hydroxyapatite Whiskers Provide Improved Mechanical Properties Reinforced Polymer Composites
Most research of this material has been directed to obtain the mechanical properties and better as biocompatible properties and to simplify the fabrication processes in the future.
SEM Morphology of : a) TEGDMA/CQ; b) TEGDMA/CQ/HA/Shellac Future Works The study will be followed by adding the glass of fibres as a reinforcing material in order to increase mechanical properties.
From this research we hope it can be obtained a new material that has properties as a biomedical materials.
[3] Roeder Ryan K, Michael M Sproul, Charles H Turner (2008), Hydroxyapatite Whiskers Provide Improved Mechanical Properties Reinforced Polymer Composites
Online since: October 2009
Authors: De Ren Yang, Xiang Yang Ma, Jia He Chen
Furthermore, it was
also found that the mechanical strength could be increased, so that breakage of wafers decreased.
Therefore, it is considered that, to maintain the mechanical strength of wafers and to suppress the formation of dislocations are two of the most important factors during larger diameter silicon crystal growth, wafer manufacturing and device fabrication processing [5].
Impurity engineering I: mechanical properties Nitrogen doping and germanium doping are well established to improve the mechanical properties of silicon wafers.
However, it is inevitable that the shallow thermal donor (STDs) could be generated in nitrogen-doped CZ silicon which could destroy the electrical properties and calls for additional anneal treatments [28].
The enhancement of mechanical properties, the promotion of internal gettering capability for metallic contamination; and the suppression of void defects on CZ silicon wafers consist the main content of "impurity engineering of CZ silicon " for IC currently.
Therefore, it is considered that, to maintain the mechanical strength of wafers and to suppress the formation of dislocations are two of the most important factors during larger diameter silicon crystal growth, wafer manufacturing and device fabrication processing [5].
Impurity engineering I: mechanical properties Nitrogen doping and germanium doping are well established to improve the mechanical properties of silicon wafers.
However, it is inevitable that the shallow thermal donor (STDs) could be generated in nitrogen-doped CZ silicon which could destroy the electrical properties and calls for additional anneal treatments [28].
The enhancement of mechanical properties, the promotion of internal gettering capability for metallic contamination; and the suppression of void defects on CZ silicon wafers consist the main content of "impurity engineering of CZ silicon " for IC currently.
Online since: September 2011
Authors: Shu Bo Xu, Cai Nian Jing, Ke Ke Sun, Yang Xi
China
2Department of Mechanical Engineering Shandong FIN CNC Machine CO.
The dynamic characteristics can be affected on the outer wall thickness, inner wall thickness and rib thickness of the beam.
(3)Considering the maximum deflection of beam structure displacement, the actual working conditions and manufacturing cost targets, welding and other factors, without reducing the overall performance of machine tools on the basis of the structural beams of the machine tool. 6.Acknowledgements This work was financially supported by Foundation of Shandong Province (2007BS05004) and China Postdoctoral Science Foundation funded project (20100471513).
Partick, “Optimal synthesis of compliant mechanisms using subdivision and commercial FEA” .American Society of Mechanical Engineers.
[3] T.P.Yeh, J.M.Vance, “Applying virtual Reality Techniques to Sensitivity-Based Structural Shape Design”, Journal of Mechanical Design[J].Transaction of the ASME,1998,12:pp44~45
The dynamic characteristics can be affected on the outer wall thickness, inner wall thickness and rib thickness of the beam.
(3)Considering the maximum deflection of beam structure displacement, the actual working conditions and manufacturing cost targets, welding and other factors, without reducing the overall performance of machine tools on the basis of the structural beams of the machine tool. 6.Acknowledgements This work was financially supported by Foundation of Shandong Province (2007BS05004) and China Postdoctoral Science Foundation funded project (20100471513).
Partick, “Optimal synthesis of compliant mechanisms using subdivision and commercial FEA” .American Society of Mechanical Engineers.
[3] T.P.Yeh, J.M.Vance, “Applying virtual Reality Techniques to Sensitivity-Based Structural Shape Design”, Journal of Mechanical Design[J].Transaction of the ASME,1998,12:pp44~45
Online since: May 2016
Authors: Mohammad Arif Kamal
A change in any of the above factors can result in detectable changes in the properties of the ash produced.
However, composition of Fly Ash depends mainly upon the geographical factors related to coal deposit, combustion conditions and the type of ash collection devices.
Factors that affect drying shrinkage of concrete also impacts on the rate of drying shrinkage and intensity of overall process.Aggregate plays an important constituent in affecting shrinkage of concrete.
Mahanwar, Mechanical properties of Fly Ash Filled High Density Polyethylene.
Properties of fly-ash lightweight aggregate concrete.
However, composition of Fly Ash depends mainly upon the geographical factors related to coal deposit, combustion conditions and the type of ash collection devices.
Factors that affect drying shrinkage of concrete also impacts on the rate of drying shrinkage and intensity of overall process.Aggregate plays an important constituent in affecting shrinkage of concrete.
Mahanwar, Mechanical properties of Fly Ash Filled High Density Polyethylene.
Properties of fly-ash lightweight aggregate concrete.
Online since: September 2008
Authors: Danuta Kotnarowska
Effect of nanofillers on
coating physico-chemical properties depends on: kind of filler, its concentration and dispersion level in
the coating as well as interaction between filler particle surface and polymer matrix [5 - 9].
Coatings modified with nanofillers show better resistance to the action of mechanical factors (erosive particles), heat, humidity and weathering [13 - 15].
Tailoring properties to applications.
[8] Zhou S., Wu L., Sun J., Shen W.: The change of the properties of acrylic-based polyurethane via addition of nano-silica.
K., van den Rul H., Peeters R., Mullens J., Franco D.: Nanoparticles of γ-Al2O3 as perspective fillers of thermoplastic polymers improving their barrier properties.
Coatings modified with nanofillers show better resistance to the action of mechanical factors (erosive particles), heat, humidity and weathering [13 - 15].
Tailoring properties to applications.
[8] Zhou S., Wu L., Sun J., Shen W.: The change of the properties of acrylic-based polyurethane via addition of nano-silica.
K., van den Rul H., Peeters R., Mullens J., Franco D.: Nanoparticles of γ-Al2O3 as perspective fillers of thermoplastic polymers improving their barrier properties.
Online since: August 2016
Authors: Bozena Dohnalkova
Simultaneously, there is a very limited number of scientific works taking the time stability of products of solidification process into account, which is decisive in terms of durability of the solidification process products and assurance of constant properties.
As second suitable sorbent appeared reaction fission powder from natural bentonite (Sorbent 1) with characteristic high content of montmorillonite - an active mineral determining its excellent sorptive properties.
Test specimen – Formula H Fig. 2 Test specimen – Formula L Once the specimens hardened sufficiently (first monitoring interval according to suggested methodology - 28 days and then 180 days) they were laboratory tested to set testing methodology; within the first phase physical and mechanical properties were checked.
Acknowledgements The paper has been prepared with the financial support of the project CSF 14-31248P “The study of the inbuilt hazardous waste impact on the cement matrix properties”.
Factors affecting hazardous waste solidification/stabilization: A review, Journal of Hazardous Materials B137 (2006) 267–276 [5] QIAN, G., CAO, Y., CHUI, P., TAY, J.
As second suitable sorbent appeared reaction fission powder from natural bentonite (Sorbent 1) with characteristic high content of montmorillonite - an active mineral determining its excellent sorptive properties.
Test specimen – Formula H Fig. 2 Test specimen – Formula L Once the specimens hardened sufficiently (first monitoring interval according to suggested methodology - 28 days and then 180 days) they were laboratory tested to set testing methodology; within the first phase physical and mechanical properties were checked.
Acknowledgements The paper has been prepared with the financial support of the project CSF 14-31248P “The study of the inbuilt hazardous waste impact on the cement matrix properties”.
Factors affecting hazardous waste solidification/stabilization: A review, Journal of Hazardous Materials B137 (2006) 267–276 [5] QIAN, G., CAO, Y., CHUI, P., TAY, J.
Online since: January 2013
Authors: Yan Ma
Methods of Errors Analysis in Assembly of Dicing Saw in Silicon Devices with Material Properties and Applied Mechanics
Yan MA
Shenyang Academy of Instrumentation Science, Shenyang, 110043,China
my9079cn@yahoo.com.cn
Keywords: Dicing Saw, Measure Errors, Silicon Devices, Material Properties
Abstract.Mainly introduce the work principle of Dicing Saw and the different kinds of errors in assembly ,analyze all errors which influence LCD glass ; draw the picture according to the measuring data ,from the picture estimate the errors how to come from and prove that the judgments is true through calculating the rigidity of liner bearing ;find the source of the main error ,appoint out how to take measures for the errors and what is the key point in the assemble.
The product has competing ability with the international similar products , the related equipment reputation and position in the world can be enhanced greatly, and the development of sensors, IC Material properties , etc LED industry can be promoted, and a considerable economic benefit and social benefit can be obtained.
Influence platform and spindle assembly parallel degree after are the major factors: rotary worktable, spindle frame parts, the components, the ball screw, rack, because they constitute a closed dimension chain.
Conclusions When bigger errors of the assembly appear, a reasonable measurement method of the material properties and the instrument should be set and the measurement record should be done, at the same time, some components are split for measurement, analysis of all data should be done through diagram, and the cause of the internal regular changes and the main reason should be found out, and specific measures for improvement would be made.
Practical grinding technology , Publishers, Beijing: mechanical industry press, (1996) [4] Y.Q.
The product has competing ability with the international similar products , the related equipment reputation and position in the world can be enhanced greatly, and the development of sensors, IC Material properties , etc LED industry can be promoted, and a considerable economic benefit and social benefit can be obtained.
Influence platform and spindle assembly parallel degree after are the major factors: rotary worktable, spindle frame parts, the components, the ball screw, rack, because they constitute a closed dimension chain.
Conclusions When bigger errors of the assembly appear, a reasonable measurement method of the material properties and the instrument should be set and the measurement record should be done, at the same time, some components are split for measurement, analysis of all data should be done through diagram, and the cause of the internal regular changes and the main reason should be found out, and specific measures for improvement would be made.
Practical grinding technology , Publishers, Beijing: mechanical industry press, (1996) [4] Y.Q.
Online since: September 2012
Authors: Jin Mei Zhang, Zheng Yu Zhang, Li Ping Li, Chong You Feng
Materials can undertake mechanical connection or adhesive without long-time decay.
The experiment choose laser power, layer thickness, scan line spacing, scan power four factors as experimental factors, each study factor select 3 levels.
Orthogonal experiment factors-levels table is shown in table 1.
Take mobile phone shell processing as an example, combined with layout position influence on various factors, analyze the mobile phone shell processing.
This paper gets a group of reasonable process parameters through orthogonal experiment, such as laser power 24 W, layer thicknesses 0.1 mm, scan line spacing 0.2 mm, scan power 10 W, the comprehensive properties of the sintering mobile phone shell is optimal, warping deformation is only 0.1638 mm.
The experiment choose laser power, layer thickness, scan line spacing, scan power four factors as experimental factors, each study factor select 3 levels.
Orthogonal experiment factors-levels table is shown in table 1.
Take mobile phone shell processing as an example, combined with layout position influence on various factors, analyze the mobile phone shell processing.
This paper gets a group of reasonable process parameters through orthogonal experiment, such as laser power 24 W, layer thicknesses 0.1 mm, scan line spacing 0.2 mm, scan power 10 W, the comprehensive properties of the sintering mobile phone shell is optimal, warping deformation is only 0.1638 mm.
Online since: July 2008
Authors: Luis Héctor Hernández-Gómez, G. Urriolagoitia-Calderón, L.E. Granda Marroquín, G. Urriolagoitia-Sosa, E.A. Merchán-Cruz
One has to keep in mind that fatigue strength depends
on material properties and geometry.
In the first instance, the mechanical properties of the material were evaluated with static torsion tests.
Currently, the fatigue life of this shaft is established by static analysis, safety factors and fatigue analysis (experimental and numerical).
The long crack is less affected by the properties of the microstructure than in the first stage.
Mechanical Engineers. (1954) p. 82
In the first instance, the mechanical properties of the material were evaluated with static torsion tests.
Currently, the fatigue life of this shaft is established by static analysis, safety factors and fatigue analysis (experimental and numerical).
The long crack is less affected by the properties of the microstructure than in the first stage.
Mechanical Engineers. (1954) p. 82
Online since: September 2019
Authors: Abderrachid Bechiri, Amira El Hassasna
Electronic properties.
Elastic properties.
Elastic properties determine the properties of the material that undergoes stress and present the important information concerning the nature of the force operating in solids.
Furthermore, the most elastic properties of applications are presented by the Zener anisotropy factors (A) which present a measure of the anisotropy of the elastic wave velocity in a crystal, Young’s modulus (Y) who describes the material’s response to linear strain, The Shear modulus (G’) describes the material’s response to shearing strain and Poisson ratio υ.
Table 3: Еhe calculated Zener anisotropy factors A, Young’s modulus Y(GPa), Poisson ratio υ and shear modulus G’(GPa) for TlN, TlP, TlAs, and TlSb in zinc-blende structure within LDA, PBE-GGA and WC-GGA approximations.
Elastic properties.
Elastic properties determine the properties of the material that undergoes stress and present the important information concerning the nature of the force operating in solids.
Furthermore, the most elastic properties of applications are presented by the Zener anisotropy factors (A) which present a measure of the anisotropy of the elastic wave velocity in a crystal, Young’s modulus (Y) who describes the material’s response to linear strain, The Shear modulus (G’) describes the material’s response to shearing strain and Poisson ratio υ.
Table 3: Еhe calculated Zener anisotropy factors A, Young’s modulus Y(GPa), Poisson ratio υ and shear modulus G’(GPa) for TlN, TlP, TlAs, and TlSb in zinc-blende structure within LDA, PBE-GGA and WC-GGA approximations.