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In work [2] investigated the tribotechnical properties of manganese phosphate covers on the steel surface.
It has been shown that the best percentage of molten surface for reducing wear rate is 46%, while the track angle is not considered as a major factor affecting wear rate.
Work [7] is devoted to the study of the tribological properties of laser infused composite covers NiCrBSi / WC.
The experience of re-infusion the WC - Co covers with a laser and the results of tribological properties studying are presented in [8].
To obtain optimum mechanical properties of the deposited cover, knowledge of the temperature fields in the cover is required.

Mold design for a composite core-pulling mechanism Yanfang Yin*, Huashun Hu School of Mechanical Engineering, Wuhan Polytechnic University, Wuhan，430030，China 1061942941@qq.com Keywords: ,Core-pulling, Design Analysis, Modeling, Composite Abstract.
The study is a one-dimensional analysis of secondary–ejector mechanism, based on a forward marching technique of solution for the simple structure and high safety and reliability. 3D numerical simulation of the different stages is considered: during processing, anisotropy of the stress state build up affects its mechanical or dimensional properties once the part is ejected.
Using the simulation analysis of mechanical system based on Pro/E, the mechanism can solve the problem that plastic parts are difficult to side core pulling in different directions by the use of bevel pillar.
This area, often neglected during mold design, is an important factor in the life of the mold and in part quality.

Some researches studied the influence of chemical degradation effects on mechanical properties: flexural and compressive strength of polymer mortars.
It is difficult to obtain high molecular weight orthophtalic polyester and for this reason, the chemical and mechanical properties of this material are inferior to those of isophtalic polyester.
We intended to detect whether it has some influence or not on other properties of the material such as its behavior under fire [21].
Vipulanandan, Mechanical Properties and Water Diffusion in Polyester Polymer Concrete, Journal of Engineering Mechanics, (1995) 1359-1365
Properties and uses of polymers in concrete.

The in vivo resorption of bioceramics is governed by two factors: Factors affected by dissolution of the material into the body fluids and depends on the final components of implant such as surface area, crystallinity, phase composition and so on and factors that are induced by body environment such as cellular activity of osteoclasts, macrophages, and white cells around the implant [4].
Regarding to these factors, several efforts have been made to improve the resorption rate of HA implants by increasing its surface area and declining its crystallinity.
Some of the above mentioned fabrication techniques are not sufficiently suitable to control scaffold structure to modulate mechanical properties.
The structural analysis, mechanical strength and cellular biocompatibility of the produced scaffolds were announced.
Kozłowska, Properties and modification of porous 3-D collagen/hydroxyapatite composites, Int.

Key factors affecting dielectric properties of CaTiO3 include doping, chemical compositions, grain sizes and density.
Hamaji, Grain size effects on dielectric properties and Crystal structure of fine-grained BaTiO3 ceramics.
Auh, Effect of grain size and mechanical processing on the dielectric properties of BaTiO3.
Han., Effects of MgO coating on microstructure and dielectric properties of BaTiO3.
Schrapel, Effect of porosity and grain size on the microwave dielectric properties of sintered alumina.

Table 2 Summary of the effect of Co2+ incorporation on the angiogenic properties of implant.
Improving the Other Properties of Implants.
The incorporation of Co2+ could also affect the tribological properties of implants.
Yunfei Zheng et al [10] studied the mechanical properties of co-doped TCP.
In addition, cobalt doping increases the implant's mechanical properties, such as modulus, bending strength and fracture toughness, and other properties, such as martensite transformation and MCE, performance to a certain extent.

Then, the samples were subjected to quasi-static tensile tests at elevated temperatures, including 25°C (RT), 75, 100, 125, 150 and 175°C, to measure their mechanical properties.
Introduction Recently, APC-2 composites have been selected as one of the best candidates for advanced and high performance aerospace engineering and structural applications, because of their superior mechanical properties, high resistance to severe environmental condition and delamination, good damage tolerance, and high impact toughness, especially at high temperature, [1].
Also, the elevation of service temperature can deteriorate the material properties.
(ed.), Mechanical Properties and Morphology of Poly (Etheretherketone), Toughened Composites, ASTM STP 937 (1987), American Society for Testing and Materials, Philadelphia, pp.342-357
Chen, "Mechanical Properties in Notched AS-4/PEEK APC-2 Composite Laminates at Elevated Temperature", Journal of Composite Materials, Vol. 40 (2006), No. 11, pp.955-969

Steels with bainitic microstructures and retained austenite can own these properties.
The chemical composition and the technology have an impact on the development of these processes, which in turn greatly change the microstructure and the mechanical properties.
After deformation, the main factor, which affects the microstructure and mechanical properties, is the accelerated cooling rate during the phase transformation.
Simulation of hot rolling The experimental simulation of the rough rolling, finish rolling with subsequent thermo-mechanical treatment were realized on the Gleeble HDS-V40 thermo-mechanical simulator by means of the plane strain compression test.
The effect of the finish temperature of the accelerated cooling on the microstructure and mechanical properties has been already studied and reported in [8–10].

Abstract:-The high-performance solid propellants play very important role in defense industry, which required highly energetic binders with good mechanical properties.
Introduction: Polyurethane elastomers are widely used engineering materials and are well known for their outstanding mechanical, thermal and adhesive properties, having broad range of applications like water permeability, low temperature resistance and in composite propellant manufacturing technology.
In addition to its application, kinetics of its polymerization, structure of its ingredients i.e. isocyanates or alcohols, are an important factors to affect the polyurethane formation [1-3].
Although GAP is unique energetic binder with positive heat of formation (+117.2 kJ.mol-1), high density, but shows inferior mechanical behavior due to poor flexibility of backbone, While HTPB exhibits high flexibility, low glass transition temperature with superior mechanical properties [10].The target goal is to develop the Interpenetrating polymer network (IPN) of GAP and HTPB with improved Mechanical properties for the composite solid rocket propellant, a comprehensive study regarding reaction conditions like temperature and concentration of the catalyst for curing is required.
Activation energy for the reaction between GAP-IPDI and HTPB-IPDI can be determined by using the Arrhenius equation which is as given below: K= Ae - Ea/RT (1) Where, k is the rate constant; Ea is the activation energy; T is the absolute temperature in Kelvin; A is known as pre-exponential factor and R is gas constant.

Some mechanical properties (microhardness and fracture toughness) were also evaluated.
The use of Y2O3 and AlN as sintering aids gave excellent results for physical and mechanical properties in Si3N4-SiC(w) composites [19].
However, these phases can reduce the high temperature mechanical properties and can also affect the oxidation behavior of ceramics composites [27].
This behavior can produce mechanical properties anisotropy, mainly the fracture toughness [30-31].
Wachtman: Mechanical Properties of Ceramics, John Wiley Sons Inc, New York, 1996