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In order to solve the domestic in recent years is the production of large Numbers of desulfurization gypsum application of open way, to achieve the purpose of the waste day source, and create good economic, social and environmental benefits. 2.
The particle size distribution of FGD gypsum Grain diameter/μm Differential distribution /% Cumulative distribution /% 0.11 0.66 0.66 0.35 0.42 7.38 10 0.24 14.21 18.01 3.14 21.08 33.58 16.29 53.24 41.34 17.13 69.85 50.88 16.69 86.37 62.63 10.39 96.86 77.09 2.81 99.99 ＞77.09 0.01 100 3.2 The effect of FGD gypsum heat treatment temperature on properties of cement The FGD gypsum was mixed into the cements at 40, 120, 140, 160, 180 and 240℃, and the quantity is 45%.

. %] C Mn Si P S Cr Ni Certificate VÚZ 0.58 0.99 0.58 0.024 0.014 23.94 19.45 AISI 310 max. 0.20 max. 1.50 max. 1.0 max. 0.045 max. 0.030 24 26 19 22 An original wall thickness of 4 mm was expressively reduced (Fig. 1) until a wall perforation due to penetration of low melting temperature sulphide through grain boundaries.
Microbiologically influenced corrosion (MIC) is a serious problem in a number of industries including pipeline water transport, power generation, petrochemical industry, gas transmission and shipbuilding.

Thus, at the condition when Al and Ni are in stoichiometric ratio within NiAl compound, the microhardness reaches the minimum values, however, as increasing the number of defects in the crystal lattice and, as a result, changing the stoichiometric ratio, the hardness of NiAl increases [18].
Froes, Grain growth and recrystallization of nanocrystalline Al3Ti prepared by mechanical alloying.

Both type of aggregate can be washed to remove dust and clay grains especially.
Acknowledgements This work was financially supported by project “SUPMAT – Promotion of further education of research worker from advanced building material centre” Registration number CZ.1.07/2.3.00/20.0111 References [1] Mostafa, A., A., Nour, W., M., N., Ibrahim, D., M., Abou-Maatty, M., A.: Interceram.

Grain morphology was observed by scanning electron microscopy (SEM), S-4500 (Hitachi).
The inside-wall area does not show large changes against the tunnel size due to a decrease in tunnel number in an unit weight.

The percentage of aluminum in propellant grain is not high to small-scale SRM.
Cpg is heat capacity of gas. pr is prandtl number.

Carbon particles may suppress the recrystallization of PEO grain when CPE is dried.
In the case of the CPE containing 10 wt% Brij dispersant, ionic conductivity was 3.95×10-5 S/cm at room temperature. 0 5 10 15 20 400 600 800 1000 1200 1400 Non-dispersed CPEs Dispersed CPEs (b) (a) Discharge capacity (mAh/g-sulfur) Cycle Number � Fig. 4.

We extracted gray variation curve of the cross-section that was perpendicular to grain direction (the measuring direction of surface roughness) through LabVIEW program, and calculated standard deviation of the curve (standard deviation of micrograph gray variance, named W).
(a) Original image (b) Image after filtering Fig.8 Gray variation curves before and after filtering Fig.7 Distribution directions of the highest W Fig.6 Flow chart of the software Y N Acquiring image Drawing the first sampling line Increasing longitudinal coordinate of end point Longitudinal coordinate of end point>462 Completing line drawing scanning Extracting the highest W and the corresponding index number Gaining the sampling line coordinates of the highest W EndThe measurement of surface roughness (Ra) depended on model of 2302 surface profile measuring instrument produced by HMCT Group.

We can calculate the density of the nanosheets, based on the number of nanosheets through each horizontal line in each SEM image and take an average.
Iron atoms diffusion may be fast along grain boundaries or dislocations in favor of the formation of Fe2O3 nanosheets. 0 5 15 0 2 4 6 8 10 12 14 16 18 20 0 0.21 1 Oxygen partial pressure (atm) Density (No/14-μm) Fig. 3 The density of nanosheets versus partial pressure of oxygen 2.

The NaPO3 and Na3PO4 compounds do not exhibit a significant effect concerning the density increase, because the lack of the liquid phase at the grains boundary.
The interpretation of IR spectra Specific peaks of specimen 1 thermally treated at: Specific peaks of specimen 2 thermally treated at: Specific peaks of HAP, (cm-1 ) 1000°C 1100°C 1150°C 1000°C 1100°C 1150°C 480 420 420 430 430 420 560 540 540 540 540 540 560 600 610 620 610 610 610 600 630 - - - - - - 960 - - - - 910 910 1000 1000 1000 1000 1000 980 1050 3200 - - - - - - The peaks corresponding to the at wave number of 480, 560, 600, 960, 1000 cm-1 are assigned to the of PO4 3 vibrations modes.