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The effects of Y2O3, La2O3 and Nd2O3 on the sintering, microstructure and mechanical properties of magnesia refractories were investigated.
However, they suffer from several drawbacks including low mechanical strength at high temperatures and poor spalling resistance, which negatively affects their performance and limits their applications.
Despite this, the behaviour of ReO in refractories systems, especially their effects on the sintering, microstructures and properties of magnesia based refractories have not been fully understood.
These results were attributed to two main factors.
Conclusions a) Additions of rare earth oxides improved sinterability and thermomechanical properties of magnesia refractories.

Introduction Ti3Al based intermetallic alloys have the advantages of both superior high temperature properties and low density, which are highly attractive for aerospace and aircraft applications [1].
Table 4 Schmid factors calculated for the β phase Table 5 Schmid factors calculated for the α2 phase The main slip systems in the DO19 α2 phase include mainly type dislocation acting on (i) prismatic }0110{ , (ii) basal { 0001}, and (iii) pyramidal }1110{ planes.
It could be seen that the Schmid factors in the major textures in the 0o specimen are zero.
After the α2 grains rotate into the {0001} orientation, the Schmid factors increase.
(4) The Schmid factors for the 45 o specimens are the highest in the α2 and β phases.

The defects not only affect mechanical properties, but also deny the opportunity for property enhancement by heat treatment.
Tensile properties and fracture morphology of RDC AZ91D Mg alloy.
The mechanical properties of RDC castings can be improved through heat treatment and no bubbles appear on the surface.
The tensile properties for AZ91D Mg alloy in different conditions are shown in Tab 1.
Microstructure and mechanical properties of rheo-diecasting AZ91D Mg alloy, Trans.

The chemical corrosion properties of PSCF in different pH values were test in microscale, and digital imaging processing technology was adopted to analyzing quantitatively the physical and mechanical properties, including particle area, pores connectivity rate and compressive strength, before and after PSCF were corroded.
The change of PSCF microstructure has significant effect on its macromechanics properties.
The interaction between mineral composition of PSCF and hydrochemistry solution was the basic factors determining straw structural characteristics, and the physical and mechanical properties of PSCF were affected by its structural characteristics.
And deformation properties of PSCF changed correspondingly with the change of PSCF structure shape.
Change Analysis of Fiber Mechanical Properties under Corrosive Action.

Factors Affecting the Performance of Molten Salt Heat Receiver Peijuan Li1, a, Yuting Cheng1,b and Shi Liu2,c 1School of Power, Energy and Mechanical Engineering, North China Electric Power University, Beijing 102206,China 2 School of Control & Computer Engineering, North China Electric Power University, Beijing 102206,China alipeijuan1234@sina.com, bcytko@126.com, cliushi_ncepu@yahoo.com.cn Keywords: Tower solar power; Numerical simulation; Molten salt receiver Abstract.
Xu Chang et al have researched heat and mass transfer properties of solar tower porous medium heat receiver, established heat receiver steady heat transfer model[8].
Molten salt is sited to variable properties , which is a function of temperature.
When molten salt flow in the pipe, distribution of temperature field is extremely uneven, but the physical properties of molten salt change greatly with the change of temperature, then this increase complexity of endothermic process of molten salt in the pipe.
Since physical properties changes with temperature, temperature difference changing rate from inlet to outlet surface decrease with the inlet temperature increasing.

Die Design Tensile properties of die castings are largely affected by the presence of processing defects as well as variations in the average microstructure [1,2].
The two most important issues that are shown to affect the tensile properties of the castings are: design of filling systems such as sprue, runner, in-gates, filters and selecting the die.
Several reference dies are described in literature for casting standard and non-standard specimens to characterize mechanical properties.
Wekesa, Effect of runner design on mechanical properties of permanent mould aluminium castings, Inter.
Zhu, Improvement in Mechanical Properties of A356 Tensile Test Bars Cast in a Permanent Mold by Application of a Knife Ingate, Metall.

The tensile strength properties of GFRP bar is its application advantage.
In order to obtain the mechanical properties of the composite, the microscopic and macroscopic levels analysis is necessary.
The microscopic mechanics determined the mechanical properties of the composite through the composition of material and interrelation.
The macroscopic mechanics employ the overall mechanical properties under the assumption of homogeneous anisotropic material, without absolutely distinguish the constituent.
Macroscopic property testing and microscopic mechanics analysis reflect the tensile properties of the material from different angles, and then obtain the mechanism of tensile strength[2].

Metallocene linear low-density polyethylene (m-LLDPE) has superior physical and mechanical properties.
Mechanical properties showed that tensile properties of all kinds of films blowing from ERE is better than the one from SSE.
This polyethylene has superior physical mechanical properties.
Measurement of Mechanical Properties.
Moreover, the mechanical properties of the end product made from ERE is higher than its counterpart.

Microstructure and Mechanical Properties of Hot Rolled TRIP Steel Based on Dynamic Transformation of Undercooled Austenite Yunyang Yin a, Fang Fang b and Zhijin Fan c Research and Development Center of Wuhan Iron and Steel (Group) Corp, Wuhan 430080, China aemail:yinyyyang@sina.com , bemail:honeyfreda@163.com, cemail: fanzhijin@wisco.com.cn Keywords: Hot rolled TRIP-aided steel; dynamic transformation of undercooled austenite; Microstructure; Mechanical Properties.
As the unique properties of TRIP steels are obtained by the multiphase microstructure, the potential for optimizing the mechanical properties of TRIP-aided steel by the conventional rolled strategy is limited.
The volume fraction of retained austenite of the two steels is approximately identical, the different mechanical properties may be owned to the different fraction of bainite.
Table.1 Tensile properties and volume fraction of retained austenite of the investigated specimens isothermed time (min) Yield stress （MPa） Tensile strength（MPa） Uniform elongation (%) Total elongation (%) Yield ratio Vol.% of retained austenite 3 480 760 25 34 0.63 9.4 5 500 790 22 32 0.63 8.9 It is well known that the mechanical properties of TRIP-aided steel are dependent on several factors such as the size and morphology of the bainite packets, the volume fraction and distribution of retained austenite and martensite, the volume fraction and morphology of ferrite.
The grain size of ferrite does contribute to the strength, but there are other factors affecting the strength, as ferrite is only one component of the multiphase microstructure.

However, the complex spooling tension is subjected to many factors, such as the unwinding tension, additional tension and yarn guide tension.
Beyond mechanical hardware factor, the spooling quality is affected by the spooling tension.
When the spooling tension is moderate, the spool would be formed well with the appropriate winding density and the better physical and mechanical properties of yarn; otherwise, the overlarge spooling tension would make the yarn elasticity losing and the weaving end breakage rate increasing and the smaller spooling tension will caused the poor quality of the spool.
Here, the formation and variation of the rewinding tension affected by many factors is the main factor inducing the tension fluctuation.
The separation point tension is subjected to the following factors: the backing-off point tension; the adhesion between the yarn and cop determined by the stringy properties and yarn surface state; the conquered inertia force when the yarn moves from static state; the friction of the sliding yarn fragment acting on the cop surface between the unwinding point and separating point.