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Mechanical Spectroscopy of Annealing Effects in Electrodeposited Nickel/Ceramic Nanocomposites H.
Such nanostructured nickel is of interest both for fundamental studies, e.g. of plasticity and deformation mechanisms [10,11], and for engineering applications based on generally improved properties.
The experimental evidence available to date on this particular aspect will now be considered for both quantities separately before being discussed together with other properties.
Apparently, the difference between both kinds of nanoparticles affects only the magnitude of the annealing effect on Young’s modulus but not its onset temperature.
Although the microstructural development during annealing of the present materials has not been studied by direct microscopic methods, some conclusions can be drawn from our present results together with previous studies of other properties.

The superconducting properties were investigated by the measurement of the temperature dependence of magnetic susceptibility and by current voltage characteristic.
Introduction The relatively poor mechanical properties of high-Tc superconductors are limiting for practical applications of these ceramic material.
Improvement of mechanical properties can be achieved by development of composite microstructures.
Not only the amount of Ag mixed into the composite but also the size of Ag particles is an important factor for the microstructure and the transport properties.
The superconducting properties were tested by the measurement of the temperature dependence of the dc magnetic susceptibility using a simple magnetometer with SQUID.

., University of Bologna, V. le Risorgimento 4, I-40136 Bologna (Italy) 2 DIPTEM, Via all'Opera Pia 15 I-16145 Genova, Italy 3 DIEM, V.le Risorgimento 4, I-40136 Bologna, Italy a lorella.ceschini@unibo.it, biuri.boromei@unibo.it, cgambaro@diptem.unige.it, d alessandro.morri4@unibo.it, egiangiacomo.minak@unibo.it, ffabrizio.tarterini@unibo.it Keywords: Friction Stir Welding, FSW, metal matrix composites, MMCs, microstructure, hardness, tensile test, impact tests, fatigue, mechanical properties Abstract.
One main limitation of these metal matrix composites (MMCs) is their low weldability by conventional fusion processes, since these lead to relevant microstructural modifications in the welds (such as undesirable matrixreinforcement reactions, particle segregation, evolution of occluded gas), which reduce their mechanical properties [1].
Since the material subjected to FSW does not melt during welding, the resultant joints offer advantages over those produced by conventional fusion welding processes, such as fewer weld defects, better retention of mechanical properties, less distortion, and lower residual stresses.
Mechanical characterization.
In this MMC, FSW also reduced the particle shape factor, from 2.1 in the base material to 1.9 in the welded zone.

Background The composition and microstructure of ferritic steels determine their mechanical and intrinsic ferromagnetic properties.
Therefore, measurements of magnetic properties derived from hysteresis (B-H) loops can be used for the non-destructive evaluation of several material properties and for monitoring the microstructural evolution of the material during recovery and recrystallization.
Various factors, mainly based on early studies, contribute to this supposition.
Symp. on Interstitial Free Steel Sheet: Processing, Fabrication and Properties (L.E.
Symp. on Interstitial Free Steel Sheet: Processing, Fabrication and Properties (L.E.

To increase system’s reliability, it is highly recommended to use a narrow bandwidth with low frequency and better propagation properties.
Information affecting the operators’ “subconscious” might also be needed, e.g. terrain inclinations, or the burden level of the drive system without tracking the indicators.
There is also leading research on equipment steering perception enhancing systems, for instance, through the introduction sensing forces and loads affecting equipment.
It is highly recommended to remember that this high frequency is exposed to the negative effects of a high number of external factors, causing an increase in the possibility of disturbances.
A very important factor that directly affects the comfort of the operator’s work is the appropriate selection of simultaneously transmitted video information.

Multiple group variables were reduced to 2 components by PCA: biotic factor and trophic factor, fluctuating with seasonal variations.
Component 1 had a significant positive correlation with T, Chl-a, FC, DO and pH, and a negative correlation with SD, which was related to the biomass properties.
Component 2 had a significant positive correlation with NH3-N, TN, TP and CODMn, which was related to the nutrient properties.
F1 F2 F Sorting 2008Dry -2.462 0.108 -1.641 6 2008Wet 2.201 1.026 1.826 2 2009Dry -2.232 -2.038 -2.170 7 2009Wet 1.838 -0.830 0.986 4 2010Dry -1.932 -2.776 -2.202 8 2010Wet 2.334 2.723 2.458 1 2011Dry -1.920 1.877 -0.707 5 2011Wet 2.173 -0.091 1.450 3 Multiple group variables were reduced to 2 main factors by PCA: biotic factor and trophic factor, which were both linked to seasonal variations.
Azevedo: Physical regimes and nutrient limitation affecting phytoplankton growth in a meso-eutrophic water supply reservoir in southeastern Brazil.

Besides for thermo-physical properties of rubber, tires can performed as a high-quality heat sink and can be used an alternative construction material for tropical building to ensure the indoor comfortable thermal environment.
Accordingly, the main climatic factors affecting human comfort and relevant to construction are: air temperature, its difference between day and night, and between summer and winter.
It is observed that, for physical, mechanical and thermal properties of rubber (refer to Table-1), ELT can enhance heat sink and drain out the excess heat from indoor environment.
This has happened because ELTs are performing as a heat sink here because of their physical and thermal properties.
The main reason behind this reverse heat flow from the sand to the above ground floor slab is for the variation of physical and thermal properties of sand (refer to Table-1).

Failure property and cause were determined by macro and micro observation, EDS analysis, metallographic examination and hardness testing, which can provide reference to prevent re-occurrence of such failure.
Therefore, bearings’ fracture properties were stress corrosion cracking. 3.2 Failure process and cause Stress corrosion cracking is brittle fracture, which caused by synergistic effect of tensile stress and particular corrosive environment [6].
Tendency to stress corrosion, static tensile stress and specific corrosive media are the three fundamental factors of the stress corrosion failure [7].
Bearing plate can be seen as simply supported at the bolted double pivot axis beam, bearing plate subjected to bending stress, which provided stress factor.
Cast loose is the main factor affecting the reliability of aluminum castings component [8], which reduces mechanical properties, chemical properties and physical tightness, while the impact toughness and elongation are also greatly degraded [9,10].

Pultrusion process: scheme (a); tapered inlet (b); Couette flow in the liquid region (c); mechanical properties computation in the gel zone (d); TCR between die and material surfaces (e).
This force acts along a direction normal to die surfaces, thus not affecting the pulling force except at the tapered die entrance (Fig. 1b).
Moreover, taking into account the non-homogeneous and anisotropic nature of the composite material, lumped properties (herein computed following the rules of mixtures [2-6,10,12]) should be introduced.
The post-processing of thermochemical results provided viscosity profiles, as well as work piece dimensional changes and mechanical properties distribution in the cross section (Fig. 4a).
Vaughan, An analysis of factors affecting pull force for the pultrusion of graphite/epoxy composites, J.

Specifically, the effective thermal conductivity of Li2TiO3 is an important parameter for the design and thermal-mechanical of fusion reactor blanket.
First, the effective thermal conductivity of pebble bed can be adjusted by size of pebble, packing factor and shape of bed.
Dalle Donne’s work proved the convection does not affect the effective thermal conductivity of the pebble bed when the velocity of the purge gas was low (<1 mm/s) and the pebble bed can be considered under a stagnant condition [1].
Theoretical calculation Fig. 1 shows the 2D schematic array of pebble bed and the theoretical packing factor is 65.5%.
Yamawaki, Non-stoichiometry and its effect on thermal properties of Li2TiO3, Fusion Eng.