Search results

Cement characteristics, namely rheological and flow properties, greatly affect implant success.
In contrast to the relatively large amount of work on mechanical properties of bone cements, few data have been published oh their rheological properties.
The rheological properties of the cement directly affect the ease with which cement flows and penetrates the bone microinterstices and consequently the positioning of the prosthesis in the bone bed during the short time available before the cement hardens.
These properties need to be taken into consideration when examining cement flow [2, 3].
Nevertheless, in contrast to the relatively large amount of work on mechanical properties of bone cements, few data have been published oh their rheological properties [4].

However, for such applications, the stress can largely influence both the fabrication of 3CSiCbased microsystems and their related mechanical properties.
Accordingly, in this study, we investigated the influence of strong aluminum incorporation towards the mechanical properties of 3C-SiC epilayers grown on silicon substrates.
This attention is motivated by the electrical, thermal and mechanical properties offered by this material, perfectly suitable to address electrical applications and microelectromechanical systems (MEMS).
Therefore, in this study, we have focalized on the influence of strong aluminum (Al) incorporation (ptype dopant) on mechanical properties of 3CSiC.
Summary In this study, the influence of aluminum incorporation on mechanical properties of 3C-SiC epilayers was studied.

The factors that determine the quality of enameled products include the carbon content in the steel, its structure, the presence of impurities in it, as well as the mode of pre-heat treatment.
The content of silicon as a technological impurity usually does not exceed 0.37% and does not significantly affect the properties of steel.
These alloying elements by the mechanism of their influence on the properties of steels and alloys can be attributed to those that affect the polymorphic (α-Fe → β-Fe) transformation of iron.
Properties of steels
Analysis of the macrostructure of enamel coatings after firing also showed the presence of a gas phase in the enamel thickness, which can adversely affect certain technical and operational properties of protective coatings.

Moreover, because the mechanical properties of flexible sound absorption materials are poor, they can’t be used as structural material directly.
They need other rigid materials to strengthen its mechanical properties in the using process.[7-9] As a metal based porous material, foam metal sound absorption material has better mechanical properties and can be used directly as structural materials.
Main factors affecting the sound absorption, mainly for flow resistance, porosity and density, thickness and cavity structure factor. 3.1 Flow resistance Porous material should have a reasonable flow resistance.
In order to make the theory close to reality, a coefficient is called structure factors.
[7].Yu Haijun,Yao Guangchun,Cheng Yan, et al.Influence factors of sound absorption properties of closed-cell aluminum foam[J]., The Chinese Journal of Nonferrous Metals,2008,18(08):1487-1491

Rice straw was successfully tested for mechanical strength and thermal properties [29-31].
For effective extraction of lignin, the factors which affect the lignin extraction are concentration, temperature and reaction rate.
Mechanical properties of PLA are excellent.
Fig.4 Major factors affecting the properties rice RS and RH reinforced polymer composite There are various factors that are responsible to change the properties of composite material (Fig.4).
Gope, “Mechanical properties of rice husk flour reinforced epoxy bio-composite,” Int.

This paper investigates the effect of using wastes sawdust as a replacement of fine aggregate (sand) on mechanical properties naming compressive, tensile and flexural strengths of ordinary Portland concrete.
In addition to the control mixture (having no sawdust), three more concrete mixtures were prepared to explore the effect of the three different methods of pre-treatment on the mechanical properties of concrete.
Several factors that are related to the wood such as wood species, condition of storage, and part of the wood can affect the compatibility of sawdust-cement.
Table 1 shows the chemical composition and physical properties of the cement used.
Table 1: Chemical and physical properties of cement used Chemical Properties Physical Properties CaO 61.71% Initial Setting Time 117 min.

Effect of Ageing on Mechanical and Shape Memory Properties of Ti-5Cr-4Ag Alloy A.
Strength of titanium alloys is also an important factor for their long-term use as implant material.
Ageing treatment also affects the superelasticity of metastable β titanium alloys.
Objective of this study is to investigate the effect of ageing treatment on mechanical, shape memory and pseudoelastic properties of our recently developed metastable β Ti-5Cr-4Ag alloy [11].
Stress-strain curves of Ti-5Cr-4Ag alloy in solution-treated and aged conditions Mechanical Properties: Tensile test results of Ti-5Cr-4Ag alloy in solution-treated and aged at 573K and 973K for 3.6ks are given in Fig.2.

Introduction Mechanical properties of weld metal and HAZ (heat affect zone) of welded joints are usually different from those of base metal.
Mismatches of the mechanical properties influence strongly the strength, the fracture toughness and the crack growth of welded joints.
The physical parameters matching factors between seam metal and base metal 11, 12 are defined respectively as ；
In order to get the crack propagation angle of the model, the stress intensity factor of the model should be calculated firstly, and then the stress intensity factor should be put into the biggest circumferential stress criterion, finally the crack propagation angle can be obtained.
So in the afterward calculation of this paper, transition area is divided into 10 layers to imitate continuous transition properties of material.

In case of thermoplastics, as for example a polyethylene, is known that a crystallinity affects positively the mechanical parameters of the final products.
Many of the properties of the solid polymer are determined by the degree of crystallinity [4,7].
Improvements in mechanical properties at low temperatures are desirable for epoxy resins such as DGEBA cured by for example IPD hardener [9].
FAST-S-17-3874 "Unique analytical methods for assessing the relationship between properties and structure of building materials based on alternative raw materials".
Richards, Polyethylene-structure, crystallinity and properties, Journal of Chemical Technology and Biotechnology 1 (1951) 370-376

Introduction Aluminum alloys are widely used in aerospace and other fields because of their low density, excellent mechanical properties, and good processability.
This phenomenon leads to premature failure, even in materials with good mechanical properties.
(1) Impact of relative humidity The relative humidity in air is one of the most important factors affecting atmospheric corrosion.
(3) Ambient temperature The ambient temperature is an important factor affecting atmospheric corrosion.
Sunshine is also an important factor affecting the atmospheric corrosion of materials.