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Was effective at lower temperatures, the matrix dislocation density produced lower back, reducing the space, so the conductivity increases slowly, after the aging temperature over 400℃, γ-Fe precipitates lead to a large number of materials, the conductivity rapidly.
It should be noted that the conductivity of the peak temperature is higher than the corresponding age-hardening peak corresponding to the temperature, mainly because, with increasing temperature, precipitation coarsening of γ-Fe particles and matrix grain growth continues to increase the conductivity of the material.

There are two components, one at high frequencies, due to intragranular resistivity, and another at low frequencies (grain boundary resistivity) [11].
The numbers stand for the logarithm of the frequency (Hz).

As shown in Fig. 1 we can find that compared with the JCPDS standard card that all peaks coincide with the peaks shown in the PDF number: 32-0493, it is simple phase of LaPO4 and orthorhombic, the space group is P21 / n.
Sintering at 1000℃, the powder had basically formed crystal, and the particles was relatively uniform, grain boundary was relatively clear.

Variation of Ra e Rz considering the tool condition The randomly behavior of the surface roughness, as can be seen in Figs. 6(a) and 6(b), can be attributed to the great number of input parameters in the machining process.
Elbestawi, Grain Size and Orientation Effects When Microcutting AISI 1045 Steel.

Runner diameter 1.7m,Rated speed 600r/min, Runaway speed 962r/min; Maximum head 238m, Minimum head 220m, Rated head 231m; The number of active stay vanes and guide vanes are 24.Sediment particle diameter is 0.5mm,volume concentration is 5%.
The Basic Equations of Solid-phase Grain.

The microstructures of the phosphor consisted of regular fine grains with an average size of about 0.7-2.5 μm.
Acknowledgement This work was supported by Erciyes University EUBAP under project number FBD-09-804.

In the continuation of further studies grain-size and mineralogical composition of fillers were estimated.
The wave number [cm-1] Absorption Fig. 2 Infrared spectrum of the synthesized filler sample.

If the total number of the external load on the beam is PN, array MPQ of the PN line and four columns will be used for storing load.
Computersimulation of the structure and dynamical properties of grain boundaries in a nanocrystalline model material.

The aggregate was composed of four fractions of silica aggregate with the maximum size of grain being 4 mm and supplemented with fine particles – silica flour.
The number behind the dash means the percentage of the pozzolanic material added.

The scholars had done a large number of studies on this aspect, and these research showed that the sulfides could not be gotten rid of completely and prevented from entering the precipitation process[4], it was necessary to study the influence of sulfides on the precipitation process.
With the increasing of Na2SO4 concentration, the particles size increased primitively, then the influence became small, and when the Na2SO4 concentration arrived 17g/l, the addition of Na2SO4 would lead to the products grain refining.