Search results

Introduction Good high-temperature strength properties coupled with low density make titanium alloys and titanium aluminides excellent candidates for high temperature structural applications.
FL alloys are of greater engineering interest than equiaxed alloys due to their superior creep properties.
Interestingly, if interface sliding were to dominate at lower stresses, creep properties would be worse for alloys with narrow lamellar spacings.
Mills, in Mechanical Properties Derived from Nanostructuring Materials, Materials Research Society, (2003), p. 261
Pettifor, in Defect Properties and Related Phenomena in Intermetallic Alloys, Materials Research Society, (2003), p. 181

The physicochemical properties of natural Allophane were studied.
There are many studies on Allophane, its physical-chemical properties and its uses as a catalyst in oil refining. [7-9].
The factors that affect the surface area are the porosity, the size and geometric shape of the particle since the surface area increases when the particle size decreases.
Use Bragg's law to determine crystallographic properties.
The allophanes have similar properties to the zeolites, for which they have similar applications as absorbent and as catalyst.

The so-called equivalent means under the influence of external factors, its mechanical property using equivalent surface heat transfer coefficient method and that under actual insulation are consistent[2].
The equivalent surface heat transfer coefficient is not a constant value, which is because the heat flux is affected by complex factors such as ambient temperature, wind speed, etc, and then the coefficient calculated by it is still changing over time.

The OEMs have been able to accomplish this by a combination of technical factors including lightweighting.
In particular, it supports a significant research project on prediction of mechanical properties of high-pressure die castings at the University of Western Ontario which is described in greater detail below.
The main objective for Phase I is to utilize the selected processes to improve cast component quality vs. conventional casting processes by achieving a more homogeneous distribution of properties while demonstrating consistent and predictable mechanical properties having improved strength and ductility.
Wood at the University of Western Ontario and colleagues, who are conducting a comprehensive study on the correlation between casting parameters, macro- and micro-defects and mechanical properties of large, complex high-pressure die castings.
Research also compares mechanical properties and microstructure in the surface area (the "skin" of the casting) to the subsurface material.

Miller [4] proposed a yield surface that can be fitted to the plastic flow properties exhibiting plastic compressibility.
In the present paper, a factor of 0.01 with the modulus of the resin is used to deteriorate the stiffness of the failed lamina[13] (the choice of the degradation factor is presented in reference [13]).
Further on, the present study takes skin effect into account that varying geometrical parameters of face layer and core layer affect nonlinear response and ultimate strength of honeycomb sandwich composites.
Journal of Mechanical Physics Solids, Vol. 37(1989), p. 717–733 [2] Zhu H.X., Mills N.J.: The in-plane non-linear compression of regular honeycombs.
International Journal of Mechanical Sciences, Vol.42 (2000), p.729-754 [5] John W.

Currently, a host of new materials with new production technologies and new properties are available on the market.
The soil can be modelled by the spatial elements that are required to describe correctly the strain properties of the real subsoil.
In that case, the real 3D subsoil of the construction is modelled by means of the contact elements, the parameters of which (C1x, C1y, and C1z) express the strain properties of the subsoil.
FR-TI2/746 Rheological sliding joint with thermo-controlled viscoelastic properties.
Manasek, (2007) Finite Element Analysis of a Structure with a Sliding Joint Affected by Deformation Loading.

Fabrication of Integral Core/shell Ceramic Casting Mould for Hollow Turbine Blade Haihua Wu1, a, Dichen Li2, b, Yiping Tang2, c 1College of Mechanical & Material Engineering, China Three Gorges University, P.
However, how to manufacture the double-walled structure for the transpiration cooling with high quality and low cost becomes a key factor restricting this cooling technology.
The composition of ceramic slurry will affect not only the baking and sintering behavior but also the room- and high-temperature properties of the casting mould.
It can be seen that when the sintering temperature was over 1600℃, the sintered shrinkage exceeded 1.2% and hence affected the structural integrity of the ceramic casting mould; when the sintering temperature was under 1500℃, the room-temperature flexural strength was lower than 10MPa.

Introduction Carbon-based materials (CBMs) are favourable for the plasma facing materials in fusion devices because of the low atomic number, favorable thermo-mechanical properties and the absence of melting.
(b) 0 2 4 6 8 10 12 Analysed line (a) Position (mm) 9.6 GW/m2, 5 ms A B C D E H F G 9.6 GW/m2, 5 ms Loaded / heat affected area Vicinity Surrounding area Surrounding area Vicinity Rear side ≈≈≈≈ Original grade 0 0.4 0.8 1.2 1.6 2 0 2 4 6 8 10 12 0 2 4 6 8 10 12 1.6 1.2 0.8 0.4 0 Position (mm) 2 ID / IG (b) 0 2 4 6 8 10 12 Analysed line (a) Position (mm) 9.6 GW/m2, 5 ms A B C D E H F G 9.6 GW/m2, 5 ms Loaded / heat affected area Vicinity Surrounding area Surrounding area Vicinity Rear side ≈≈≈≈ Original grade 0 0.4 0.8 1.2 1.6 2 0 2 4 6 8 10 12 0 2 4 6 8 10 12 1.6 1.2 0.8 0.4 0 Position (mm) 2 ID / IG dipoles which was detected at the graphite surface exposed to the edge plasma in the TEXTOR tokamak [8].
(1) where λL stands for the wavelength of the laser, C(λL) for the wavelength-dependent pre-factor that can be written as C(λL) ~ C0 + λL.C1, with C0 = -12.6 nm and C1 = 0.033, being valid for 400 nm < λL < 700 nm [11].

Other techniques like Raman spectroscopy and XRD were also employed to know the physico-chemical properties of the samples.
Introduction Carbon Nanotubes have been paid most attention among the research community because of its interesting and superior chemical, electronic, physical and mechanical properties.
Other techniques like Raman spectroscopy, XRD were also employed to know the physico-chemical properties of the samples.
In Carbon Nanotubes Properties and Applications, (ed.)
Advanced ceramics: Combustion synthesis and properties, Mater Sci. 16 (1993) 533

Practical interest in texture is concerned to the fact that their presence leads to an anisotropy of physical properties [6, 7], strength and ductility [4, 8-11], as well as the tendency of the material destruction [12-14].
Formed texture in the material at a certain repartition, in the subsequent processing (annealing, deformation), through the mechanism of heredity [15], can materially affect on the orientation-dependent properties of the product.
The cause of texture formation is deformation under severe conditions, in consequence of sliding of dislocations over systems with the maximum Schmid factor [18].
Doroshenko, Investigation of the Effect of a Technology for Al-Mg-Si Alloy Flat Product Manufacture on Anisotropy of Properties, Technology of Light Alloys. 3 (2016) 69-74
Chen, Effects of Heat Treatment and Strain Rate on the Microstructure and Mechanical Properties of 6061 Al Alloy, Int.