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The factors that affect the ME effect are piezoelectric and piezomagnetic coefficients, elastic properties, magnetic and dielectric properties, and volume fraction of composite components [5].
The relationships were studied between phase formation, grain morphology and magnetic properties that are affected by the change of various compositions.
It is believed that the crystallite size is a main factor affecting the crystal structure.
González, Synthesis and characterization of electroceramics with magnetoelectric properties, J.
Vittayakorn, Fabrications and properties of BaTiO3-CoFe2O4 nanocomposites, Integr Ferroelectr. in press

Through axial load bearing capacity test of eight steel & steel pipe reinforced concrete composite columns, the working mechanism, the ductility and the ultimate bearing capacity of the composite columns were studied, and the main factors affecting the performance of the composite columns are discussed, including concrete strength and the ferrule coefficient.
In the steel reinforced concrete columns, the steel is wrapped in concrete and thus improves the shear capacity of the columns[1], whereas the concrete increases steel stiffness and its resistance to local and overall buckling, and meanwhile improves the durability and fire-resistant properties of the columns.
Fig.1 Load-displacement curves of axially loaded composite columns Fig.2 Typical N-△ curves of axially loaded composite columns Analysis of all factors affecting the axial compression performance of the composite columns.
By comparing SJ2-1 and SJ4-2, we can see that for steel & steel pipe reinforced concrete composite columns with the same indices, with the increase of core concrete strength and due to changes in the mechanical properties of concrete, the magnitude of the bearing capacity improvement trends to be less.
This shows that such structural parts have a stable later stage bearing capacity and good deformation properties

Banana/Hemp Polypropylene composites with and short fibre were compared in terms of mechanical properties by the same authors [3], [4].
Because of the continuous threads, the mechanical properties of banana/Hemp Polypropylene composite were shown to be superior.
The analysis results shed light on thermal properties of the composites.
Essential factors that can limit the use of composites, notably in the construction and automotive sectors, are their heat and flammability properties.
Many studies have examined the mechanical behaviour of Hemp hybrid composites, but far less attention has been paid to the composites' flammability and thermal properties.

It can be found from this study that the combination of flowing chemicals in the pipe with the external factors such as elevated temperature and ultraviolet radiation have a notable impact over the polymer matrix and consequently on the composite physical properties.
Composite resin reinforcement with glass fibers tend to produce better mechanical flexural properties than filler reinforcement [7].Thus, in our study, flexural strength test according to ASTM D790 and ISO 4049 standard were used as in several previous studies [8-11].
Swelling is one of the main factors that is attributed to the matrix-fiber deboning.
Bravim , “Environmental Effects on Thermal Properties of PEI/Glass Fiber Composite Materials”, J.
Changes in flexural properties of composite restoratives after aging in water.

Despite the fact that magnesium alloys have appealing properties and advantages, their properties of wear are less known than those of aluminium alloys [7].
Several factors are considered at first, and then the less important factors are eliminated, leaving only the more important factors.
The most significant factor affecting wear is % of reinforcement (R), with a contribution percentage of 80.42%, followed by sliding velocity (S) with 6.75%, sliding distance (D) with 6.02%, and load (L) with 3.29%.
Mechanical properties of magnesium-silicon carbide composite fabricated through powder metallurgy route, Materials Today: Proceedings 27 (2020)1137-1141
Ponappa Evaluation of physical and mechanical properties of AZ91D/SiC composites by two step stir casting process, Journal of Magnesium and Alloys 3.1 (2015) 52-62

This paper presents an approach that uses pseudo-3D fracture propagation model to study the influence of petrophysical properties, differential stress, treatment conditions, etc. on fracture geometry.
The stimulation effect is largely affected by the geometry of artificial fractures produced by hydraulic fracturing whose influencing factors include in-situ stress conditions, physical and mechanical properties of coal rocks, treatment conditions, etc.
Factor Analysis Several researchers have studied the influence factors on fracture height[2,3,4,5], while few of them focus on the influence factors on fracture length and width.
Poisson`s ratio affects fracture geometry as well.
Petrophysical properties (elastic modulus and Poisson`s ratio), formation conditions (differential stress), construction conditions (pump rate), etc. have different influences on fracture geometry.

The mechanical properties have been measured by hardness testing and scanning electron microscopy (SEM) and the microstructures have been characterized by optical microscopy (OM), together with transmission electron microscopy (TEM).
Introduction Al-Zn-Mg-Cu alloys have been widely applied to the aircraft and aerospace industry due to their excellent combined properties, such as light weight, high strength, and good workability [1].
Proper control of the size, density and distribution of these precipitates is crucial in order to obtain optimum properties of the alloys.
Factors affecting the precipitation processes include chemical composition of alloying elements [9,10], aging temperature and time [7,11], solution treatment condition [12] and quenching state (i. e. vacancy supersaturation) [13-15].
Summary A new stress aging method was performed to improve the mechanical properties of a Al-Zn-Mg-Cu alloy.

Steel is the main material used in the automotive industry, mainly due to its excellent mechanical properties.
It could be seen that addition of Cr or Mo resulted in improvements on mechanical properties.
In this context, the importance of the steels behavior is supported by several relevant factors to automotive applications such as good strength, formability, weldability and machinability, beyond their possibilities to improve thermal, chemical and mechanical processing properties.
Cr or Mo Effects on Mechanical Properties.
Effect Of Al, C and Mn on Structure and Mechanical Properties of Dual-Phase and TRIP Steels.

Abstracts:This paper investigate the mechanical property and microstructure of girth weldment of Lan Zhou to Cheng Du crude oil pipeline.
Microstrure of the whole weld joint is mainly polygonal ferrite and granular bainite, this is the reason that mechanical properties can meet the Lan Zhou to Cheng Du crude oil pipeline project requirement.
Low temperature impact toughness is the key factors to determine whether the girth weld joint can work for a long time.
Impact energy of Heat affected zone is general, even in weld metal -20 ˚C, higher than that of weld metal, demonstrating heat affected zone has good welding stability.
And hard zone or soft zone didn’t exsited in heat affected zone.

Using this foundry technology, the casting process yield and surface quality of casting may be improved, the production cost is reduced, and the requirements of mechanical properties can be met.
The final inclusion in casting does not affect the mechanical properties and performance.
Controlling the pouring temperature According to last solidifying feeding mechanism, pouring temperature is one of the important factors which achieve the dynamic directional solidification of casting.
The castings can be able to meet the mechanical property by test.
Adopting this foundry technology, the process yield of steel castings was greatly increased, its surface quality was greatly improved, and the requirements of mechanical properties could be met.