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Kaolin based geopolymer has been proven to acquire remarkable thermal resistance, chemical resistance, and mechanical properties.
However, if we are able to produce geopolymer using kaolin with greater or equivalent mechanical properties with metakaolin, that will be a breakthrough.
References [1] Wang, Li and Yan (2005).Synthesis and mechanical properties of metakaolinite-based geopolymer.
Factor affecting early compressive strength of alkali activated fly ash (OPC-free) concrete.
Correlating mechanical and thermal properties of sodium silicate-fly ash geopolymers.

Previous studies demonstrated [1-2] that electromigration on the solder bump/solder ball is the most tenacious cause affected reliability.
Working temperature and current density are the main factors which directly impact electromigration behaviors.
Material properties, such as electrical resistivity and temperature coefficient of resistance are crucial and vary from working temperature.
Temperature is initially set to be room temperature (25O C) and material electrical properties are resistance for SAC405 is 13e-5 Ω-mm and for Copper is 0.158 Ω-mm, while temperature coefficient of resistance for Copper is 4.3e-3.
Current and geometry are the major factors for Joule heat.

The purpose of the authors is to compare the mechanical properties of presently used aluminum calipers with polymeric thermoset based matrix (Carbon cloth with epoxy) based on CAD tools.
Thermoset based composites (carbon cloth with epoxy) has inherent properties such as higher strength, stiffness, lower-weight to volume ratio and lighter in weight.
Figure 2. 3D model of Side Supports of a commercially available Orthotic Braces/Calipers ANSYS workbench was used for the simulation and analysis of the mechanical properties such as total deformation, von-Mises stress and von-Mises Strain with taking into account the axial loading and the transverse loading.
Evaluation of the mechanical properties was done only to choose a material which will have more strength ad stiffness than the presently used calipers.
Chowdiah, Tensile and wear properties of Aluminum composites.Wear 255 (2003) 638-642

Due to their mechanical properties similar to those of polypropylene or polyethylene, PHAs are considered as an alternative to synthetic polymers.
Our results indicate that accumulation of PHB granules in bacterial cells affects overall physico-mechanical properties of the cells in particular their sedimentation potential and density.
Generally, the explanation can be that chemical mutagenesis employed to gain PHB non-producing strain might have affected other cellular structures, thereby affecting the density and sedimentation properties of the mutants as suggested by Eroglu and Melis [10].
In addition, the fact that presence of PHB granules in cytoplasm of bacterial cells enhances density of cells might dramatically affect physico-chemical properties of the cells.
Based on our results we can hypothesize that presence of PHB granules in cytoplasm significantly affects physico-chemical and mechanical properties of bacterial cells and cytoplams which might provide important advantage during exposition to various stress conditions.

During cement preparation, precursors play an important role that affects the properties of CO3Ap cement.
Mechanical properties of CO3Ap cement especially its hardness required to be evaluated before it can be applied as bone cement.
Particle size was one of the factors that affect the chemical reaction.
This result was in line with a study on mechanical properties conducted by Erdemir et al., in which the mechanical properties of materials depended on the composition of precursor involved in reactions [15].
Further study on mechanical, physical, and biological properties of CO3Ap bone cement synthesized from Indonesian limestone using this method with precursor ratio of 20:80 is to be conducted in the future.

Influence of processing parameters in reaction injection foam molding for multi-layer parts on foam structure and mechanical properties Martin Löhner1, a *, Prof.
Hossinger [7] worked on the influence of the amount of air loading of the polyol component on the resulting mechanical properties of polyurethane foams.
Menges et al. investigated the mechanical properties of rigid PU foams depending on different influences [9].
The second electrons were detected and magnification factors between 20 and 75 were used.
Other relevant factors, which were not investigated in this work, are besides others the cross-linking level and the bonding between the layers.

Physical properties of the aggregate materials are shown in Table 1.
Mechanical properties of cork-modified polymer concrete formulations -Average values and standard deviation-.
In order to clarify the influence of cork, mechanical properties of polymer concrete formulations are plotted as a function of cork content in Fig. 2, for compression and flexion.
Binder lack and the low resistance of cork, appear thus as the most relevant factors in explaining the above trend in properties.
Formulations in series A, where binder content is comparatively lower, are more severely affected by cork content; � One of the main factors responsible for loss in properties is the decreasing resin volume as cork content rises along each test series; � The compressive behaviour is remarkably altered by cork, resulting in a less brittle failure; � It is nevertheless clear that the observed properties are still higher than mechanical strengths shown by an ordinary Portland cement concrete prepared with the same siliceous size aggregate - commonly named mortars.

The influence of the partitioning time on the structure and mechanical properties is discussed.
The formation of bainite leads to no deterioration of mechanical properties.
The formation of bainite and deep changes in shape and distribution of RA affect the mechanical properties insignificantly.
Kaibyshev, High-Mn twinning-induced plasticity steels: Microstructure and mechanical properties.
De Cooman, Microstructure-mechanical properties relationships for quenching and partitioning (Q&P) processed steel, Acta Materialia. 113 (2016) 124–139

This paper is dedicated to the study of the structure, microstructure and mechanical properties of the Cu-Co-based alloys.
It is worth to say that Oliveira and Filgueira [7] stated that the mechanical properties are the main properties for the selection of a metal matrix for bonding diamonds in impregnated diamond cutting tools.
And the same effect on mechanical properties of bulk sintered is also concluded.
From the mechanical properties results, shown in Fig.5 and Fig.6, respectively, one can observe basically three affects: (1) the solid solution hardening in Cu-Sn and Al-Fe solid solution is one key factor caused the mechanical properties enhanced as the sintering temperature increase; (2) pores are the origin of crack, melted and plastic deformation of Cu occurs during hot pressing, so pores will be filled and refined and lower porosity with higher temperature, in addition, lower porosity causes the increasing of mechanical properties of Cu-Co-based alloys bulk; (3) for 750°C and 790°C, hardness values for Cu-Co-based alloys matrix are the same, but tensile strength and compressive strength values become higher from 750°C to 790°C, due to the second phase dispersion hardening enhanced with the dark particles more dispersed.
As the sintering temperature increased, the mechanical properties of Cu-Co- based alloy matrix enhanced.

However due to several factors such as corrosion, material and design defects, mechanical failure is unavoidable.
This expression is derived as functions bar geometry, loading and material properties as follows (7) where J = Je + Jp, and F*I = FI,a + fFI,b.
It is also affected by the crack aspect ratio and relative crack depth.
Ghazali, Stress intensity factors for surface cracks in round bar under single and combined loadings, Meccanica, 47 (2012) 1141-1156
Ghazali, Stress intensity factors under combined tension and torsion loadings, Indian J. of Engineering and Material Sciences, 19 (2012) 5-16