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Resistance of these materials to combination of several adverse factors was observed.
However, there are also situations when more adverse factors can act in synergy.
I the paper [2], the authors focus on research of properties of mortars with blended matrix containing fly ash (type Cl and F), silica fume and metakaolin exposed to sulphate environment for the time up to 30 months.
Subsequently, basic physico-mechanical parameters were tested, mineralogical composition and microstructure examined.
The investigation of microstructure and strength properties of lightweight mortar containing mineral admixtures exposed to sulfate attack, Measurement, Volume 77, January 2016, p. 143-154

Some researchers have improved the mechanical properties of cordierite ceramics by the method of toughening with zirconium oxide and preparing cordierite-mullite composites [4, 5].
In traditional opinion, the presence of glassy phase destroys the good dielectric properties of cordierite.
But some experiments, in which the (Ba, Ca)-MgO-2Al2O3-5SiO2 system was used for preparing cordierite crystallite glass, have proved that crystal grain boundary remnant glassy phase does not affect on materials dielectric properties [6, 7].
Moreover, the mechanism of liquid-phase-sintering affecting on the cordierite mechanical properties was studied.
Materials porosity and mechanical properties.

Arc heat source model of GTAW under the magnetic field was established, also consider physical properties of materials varying with the temperature and the influence transformation, through the method of killing or activating elements treatment such as melting or solidification by welding pool, 3D FEM simulation analysis for the temperature gradient and residual stress size distribution to GTAW welded joints compared to on magnetic field or not.
Indirect approach to calculation of residual stress, first perform non-linear transient thermal analysis, transient thermal analysis will be added to the temperature as the body structure of the load stress field solution. 2.1 Geometric solid modeling and finite element mesh Q235 steel specimen material (size 100mm×70mm×2mm), the temperature-dependent of material properties in Table 1 [4], using the GTAW without filler metal plate butt welding, welding specifications in Table 2.
Table 1 Material thermo-physical and mechanical properties T [℃{TTP}8451 ] l [W/m·℃{TTP}8451 ] c [J/kg·℃{TTP}8451 ] ×10-5a [1/℃{TTP}8451 ] ×105E [Mpa] m s [Mpa] 20 50 460 1.10 2.05 0.28 220 500 40 530 1.39 1.5 0.31 130 750 27 675 1.48 0.7 0.35 40 1000 30 670 1.34 0.2 0.4 25 Where T is temperature, λ is thermal conductivity, c is Specific heat, α is thermal expansion coefficient, E is the elastic modulus, μ is the Poisson ratio, σ is the yield strength.
Compared with no external magnetic field, the maximum residual stress decreased by 12.3% and the maximum transverse residual stress decreased by 13.6%, and the numerical simulation are basically consistent with the actual measured value. 4 Conclusion 1) Established an adscititious magnetic field GTAW arc heat source model, taking into account the physical properties of materials change with temperature and phase transformation, through the method of killing or activating elements treatment such as melting or solidification by welding pool, 3D FEM simulation analysis for the temperature gradient and residual stress size distribution to GTAW welded joints compared to on magnetic field or not, also have blind hole measuring method measure welding residual stress, Test measurement and simulation values were basically consistent. 2) Process after applied magnetic field, the maximum weld temperature, temperature gradient and heat concentration factors are reduced, and the maximum longitudinal
China Mechanical Engineering, Vol. 13(2002), p. 1876.

(2) The mechanical properties of rock.
It is the rock properties shown under the mechanical external force.
It includes the strength properties (tensile, bending, shear, press four kinds of disturbance intensity), the deformation characteristics (elastic, brittle, plastic), and surface properties (hardness, abrasive)
(3) Non-mechanical properties of rock.
There are many factors to affect the risk of directional drilling construction; in general, there are three aspects of directional drilling construction risk: the owners passed on the construction risk, security risk, the risk of construction technology.

Because the local weld of the metal is affected by high temperature in the welding process, every temperature is always uneven after the completion of welding. so in the cooling process, the temperatures of the different dots cause different contractions .This situation will lead to internal forces.
But the welding residual stresses are one of the factors of welding crack formation, they will affect the metal components of the stress and the use, so the detection of welding residual stresses is particularly important.
Because Hauck can eliminate the stress treatment can also improve the influence factors, several fatigue properties of weld areas such as: the residual stress, micro cracks and defects, geometry and the surface hardening, so it is one of the most effective methods to improve the fatigue properties of weld, effect and multiplier It is more suitable for site welding to the large-scale structure, the super higher and lower welding seam and for relieving the weld stress in repairing.
Secondly, the stability of the pressure welding is affected. when the external pressure should be the sum of the yield stress and residual stress compressive stress, the effective area will weaken the components, reduce the stability of compressed weldment.
Because the generating and receiving ultrasonic do not need the coupling agents, and because the laser scanning speeds much faster than the method of mechanical type, so we can achieve rapid scanning imaging with laser ultrasonic system easily.

In this study, several different types of mechanical tests are carried out.
It has been known that the final degree of orientation strongly affects both the optical and mechanical properties of the polymer.
To check mechanical isotropic behavior of DM-3, the quasi-static unixial compression tests were carried out.
The samples possess two stress concentration factors (Kt), they are 2.0 and 3.0 respectively.
This naturally leads DM-3 to have an anisotropic property, as seen in Fig 2.

Among the factors ruling the superplastic response, chemical nature to the boundaries is reported repeatedly to be a key one.
In effect, yttrium segregation to the boundaries is known to affect the mechanical behaviour [3], mostly playing a negative role [4].
Experimental procedure Sintering procedure and mechanical characterization.
Results Mechanical results.
Thermodynamic properties of 65 elements - Their oxides, halides, carbides, and nitrides.

Email: Haslan@sirim.my, mawarni@sirim.my Keywords: Anodizing, Laminates Composites, Mechanical Properties Abstract.
FMLs, are well-known because of its uniqueness that combine of the best properties of metal and composite which resulted in good fatigue characteristics as well as their lower density.
A contact angle readings can be affected its surface roughness.
Mechanical Test.
[3] M.Mohamad, H.F.A.Marzuki, E.A.E.Ubaidillah, M.F.Z.Abidin, S.Omar, I.M.Rozi (2012) Effect Of Surface Roughness On Mechanical Properties Of Aluminium-Carbon Laminates Composites.

Conclusively, fine size palm ash and coarse size palm slag show the better viscoelastic properties in rHDPE composite.
On the other hand, various researches also have been done to examine the properties of rHDPE.
Besides, it was stated that the rHDPE could have the same properties with the virgin HDPE.
The dynamic properties of samples were evaluated using dynamic mechanical analyzer (DMA) of Perkin Elmer DMA 7e model.
Conclusively, fine size palm ash and coarse size palm slag show the better viscoelastic properties in rHDPE composite.

Tavakoli2 1 Faculty of Mechanical Engineering, K.N.
Over the last decades, numerous investigations have been conducted on Nitinol properties.
Introduction NiTi-based shape memory alloys are technologically important materials with outstanding engineering properties including shape memory effect (SME), super elasticity and biocompatibility
These properties are sensitive to factors such as Ni content, aging, thermo-mechanical treatment, and the addition of alloying elements, the presence of impurities and chemical composition homogeneity, which affect the structure [2-4].
The property of high hardness and being a non-magnetic metal is unique to 60-NiTinol [5].