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Function of chemical composition of alloy, after a variable number of cycles it was found the micro-cracks appearance that generates crack and finally the break of samples.
The mechanism of defects accumulation due to thermal fatigue in the crystalline network and inside the grain leads to create the local tensioned areas which can create crack primer.
The cracks due to thermal cycles and their increase is due to network tensioning by blocking of dislocation which are moving inside the grain matrix, especially, due to the tensions which appear or mechanical, or thermo-mechanical.

The result show that: with the acr current increasing, the Cr content of (Ti,Cr)N composite films increased, the Ti content decreased, the number and size of droplets decreased, and the hardness of composite films increased first, then decreased.
We can see that the number and size of droplets decrease with the current Cr increase.
On the other hand, it could inhibit the growth of films grain and further improved the hardness of the films.
Conclusion (1) When the acr current increase, the Cr content of (Ti,Cr)N composite films increase , the Ti content decrease, the number and size of droplets decrease

Samples were subjected to the cycling heat/frost device and effect of a number of cycles on final bond behaviour of both UHPC and ordinary concrete were investigated.
The number of cycles varied from 100 to 400.Degradation of material and related decline of material characteristics may have very significant impact on values of the bond stress.
Samples were identically maintained as samples from concrete C50/60 and were subjected to the same number of cycles.
Fine-grained structure of UHPC in connection with excellent material parameters would resist on a long-term basis to extreme conditions represented undoubtedly by these freezing cycles.

The coordination number of C and/or O around Si is about four.
In order to avoid the brittleness at grain boundaries of polycrystalline state, the molecular structure of the precursor and the pyrolysis process must be optimized in order to prevent crystallization and to preserve an amorphous state up the working temperature [5,6].
In the study on silica glass [13], the pair distribution function G(r) (= 4πrρT(r), ρ: atom number density) exhibits three peaks at 1.61 Å (Si-O), 2.63 Å (O-O) and 3.07 Å (Si-(O)-Si).
Thus, assuming that the peak at 1.4 - 2.2 Å in the T(r) of NL400 fibers contains two contributions, namely a contribution of a Si-O correlation at around 1.6 Å and a contribution of a Si-C correlation at around 1.9 Å, the corresponding partial average coordination number Nij can be estimated from the peak area Aij using Nij = Cij·Aij/Wij.

The experimental programme was designed to investigate the deformation and failure modes of sandwich beams, so a large number of experiments have been conducted, and the experimental results are reported and discussed systematically.
To investigate the deformation and failure modes of sandwich beams, a large number of experiments have been conducted, and the experimental results are reported and presented systematically.
Its average cell size was measured according to the ASTM method for the grain diameter measure in polycrystalline materials [9].
Using a special clamped fixture, a large number of sandwich beams have been loaded under quasi-static loading.

The influences of the milling times, the dispersant agents, speed and ratio of ball to powder on the distribution of particle size, the shape of grain and the specific surface are studied.
Apparent density in the table was measured by funnel; specific surface area was counted by the formula: S=6/Dρ (1) Tab. 1 Size distribution of spherical silver Accumulative percentage% 10 50 90  Particle size(μm) 2.85 5.40 10.62 Tab. 2 Orthogonal factors and the level design Factor A B C(h) D(r/min) Level 1 3:1 oleic acid 15 150 Level 2 6:1 calcium stearate 20 200 Level 3 9:1 oleic acid and calcium stearate 25 250 Tab. 3 Orthogonal text Test number Factor apparent density (g/cm3) tap density (g/cm3) D50 particle size (μm) specific surface area (m2/g) A B C D 1 1 1 1 1 1.757 2.342 6.97 0.82 2 1 2 2 2 1.170 1.624 9.59 0.60 3 1 3 3 3 1.529 2.243 2.21 2.58 4 2 1 2 3 1.391 1.987 7.01 0.82 5 2 2 3 1 1.226 1.624 12.9 0.44 6 2 3 1 2 1.501 2.008 2.00 2.87 7 3 1 3 2 1.314 1.686 5.36 1.31 8 3 2 1 3 0.894 1.430 10.6 0.54 9 3 3 2 1 1.222 1.786 4.33 1.32 K1 4.456 4.462 4.152 4.205 K2 4.118 3.290 3.783 3.985 K3 3.430 4.252 4.069 3.814 k1 1.486 1.487 1.384 1.402 k2 1.373 1.097 1.261

(b) the Sr inhibits the formation of AlP nuclei [15], hereby reducing the number of heterogeneous nuclei, resulting in the reduction of the number of primary silicon.
When the Sr content increases up to 0.02 wt%, α-Al phase turns into the equiaxed grains and its branch disappears.
While its number is little, as shwon in Fig. 2a.
Its size increases and the number decreases.
The number of primary silicon also increases.

The number of adjacent anchor nodes is less than 3.
The number of adjacent anchor nodes is less than 3.
Assume that the number of simulations is 1000.
Finally, the AHMH-APIT algorithm is tested in the case of the number of anchor nodes, the number of nodes and communication radius.
References [1] Savvides A, Han.C.C, Srivastava M.B: Dynamic fine-grained localization in ad-hoc networks of sensors.

This type of processing permitted to obtain a more uniform structure for the composites with ultrafine layers of the binding compounds separating dispersed cBN grains.
The cycling pressure was performed by alternating two different levels: 7.7 GPa at 1800°C for 3 minutes and 4.5 GPa at 30°C for a certain number of cycles.
In this figure one should note evidences of intergranular fracture, which occurred separating crystalline grains that form the cBN particles.

Particle dispersion strengthened W alloys and ultra-fine grained W can improve mechanical properties and reduce ductility to brittle transition temperature (DBTT) in comparison with commercially available W [6].
Under initial steady-state conditons the exterior wall has a He concentrion of 1024 number of atoms.
Under initial steady-state conditions the exterior wall has a He concentration of 1.2x1024 number of atoms.
The only difference is that the number density of V particles is higher because of its higher concentration.