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It showed that a large number of pores existed in the sample sintered at the low temperatures below 1473 K, but the porosity decreased significantly with apparent grain growth when the sintering temperature was raised to 1473K.

A white alumina powder of 10-45 µm grain size (Showa Electric Co., K-16T) was sprayed on the bond coat as top coat.
Both heating rate and cooling rate affected the number of AE and the distribution of AE generation temperature.

Fatigue of metals can be explored from the scale of metal grains of a metallic aggregate.
The number of patches is 251×21 and 301×21 depended on analysis conditions.

The microstructure of the steel was composed of austenite phase with a few amount of δ-ferrite with average grain size of about 50micron.
During increasing of load, a certain number of mobile dislocations are injected in crystals.

In ferrites, the polarization is directly depending upon Fe+2 ions concentration at a grain.
The reason of decrease in dielectric constant with doping gadolinium is that the number of iron ions decreased when gadolinium dopant replaces iron ions from octahedral sites which results in decrease of hopping of electrons [13].

Comparison of Influence of Different Greening Structure on Outdoor Temperature in Two Residential Areas The environmental characteristic of the first residential area is as follows: the geographical layout of six-story residential buildings is in rows with south-north orientation; the space between buildings is about 12 meters; the condition of greening structure is good; in the range of 50m*50m, the number of trees is about 40.
The tiny concave and convex of grains on the rough wall surface can guard against glare. 3.

Application of active beds has become possible through the development of powders with the desired properties, particularly suitable composition, grain size, flowability and especially resistance to sintering at high temperatures (temperatures corresponding to thermo-chemical treatment for particular powder).
In this model the number of phases is limited only by computational capabilities and memory capacity of the computer.

A number of standards had been developed for the parameters of recycled aggregate around the world, but these standards are not entirely consistent.
RA’s surface roughness, grain shape, irregular, angular and more attached to the surface more mortar block, which is caused by RA important factor in poor performance.

Quite a certain number of studies investigating the deformation behavior of the Mg-Zn-Zr alloy with low zinc have evolved recently.
This is because that the nucleation and growth of dynamically recrystallized grains are provided higher mobility as the deformation temperature increasing, and decreased the strain rate would also end to the acceleration of activation energy accumulation and dislocation annihilation due to the relatively longer time for the deformation to be completed.

To achieve the metallization of textile materials, a number of approaches have been developed, such as vacuum deposition, ion plating, electrolytic coating, and electroless plating [1,2].
Compared with Fig. 5(b), the surface of PET/PANI-Ag obtained under 45 oC showed was rougher and its grain size became bigger.