Search results

In addition, through observing the failure cross-section, the specimen's fracture surface becomes coarse grain in tensile test.
Table 2 Torsion angle Fig. 6 Theoretical and numerical results for the history of elastic core during torsion In Fig, 6, the numbers from 1 to 7 correspond to the torsion angle are listed in Table 2.

Another reason may be preferential adsorption on different surfaces and the number of adsorption sites on the different surfaces.
The roughness increased with increasing film thickness as on films grown on glass substrate by SILAR and or by chemical bath deposition (CBD)-method.[8,10] From the AFM images it was observed that the PbS grain sizes are much smaller than the 1 µm found in thicker PbS films by CBD [4].

For this treatment the bridges were embedded in fine-grained alumina powder to achieve a wicking effect for careful removing the wax core of the bridging part.
The number of dental parts which can be produced from a given volume of suspension strongly depends on the electrochemical state of suspension.

Together with treatment time, the rod-shaped crystal was longer and the number of rod-shaped crystals was increased.
From SEM observation, sintered HA grains were polyhedral shape without specific crystal shape (Fig. 3 (A)).

If the cellulose concentration of the casting solution keeps no change, the higher content of high DP cellulose, the less cellulose molecules number is, the slimmer chances of the celluloses collision and hydrogen bonds forming will become, the less initial micro aggregates and final cellulose aggregates will be formed.
This is due to the more irregular arrangement of cellulose molecules that cause insufficient growth of the grain during the course of solidification [5].

Consequently, the number of tunnels built in water-rich stratum is gradually increased.
The strata that tunnel passes through are gneissic granite with coarse-grained structure and developed joints.

Introduction Yttrium and lanthanide sialon glass-ceramics have been investigated because of their improved refractoriness and mechanical properties compared with oxide glass-ceramics and because of their presence as grain boundary phases in silicon nitride based ceramics [1].
Acknowledgements The authors wish to acknowledge financial support of the European Commission under the TMR Research Networks scheme, grant number: FMRX-CT96-0038 (DG 12-ORGS) and of the MSSI (Materials and Surface Science Institute), University of Limerick, Ireland.

Table1 Formulations and physical properties of specimens number formulations[wt%] bulk density [g·cm-3] apparent porosity [%] MOR [MPa] HMOR [MPa] elastic modulus [GPa] zirconia graphite G6 90 6 3.99 14.9 6.5 9.1 6.0 G10 85 10 3.84 14.6 6.1 9.4 6.6 G14 88 14 3.61 13.7 6.8 9.8 6.2 G18 87 18 3.49 12.8 7.5 10.5 7.6 1.2 Evaluation Method for Corrosion Resistance A medium frequency induction was used to measure the corrosion resistance of ZG material, sketch of experiment is shown in Fig. 2.
Table 4 Thickness of decarbonization layer of slag line [mm] specimens G6 G10 G14 G18 1# & MF1 1.29 1.17 0.96 0.74 2# & MF2 0.36 0.33 0.25 0.20 Micrograph of decarbonization layer of slag line corroded by MF1 is shown in Fig. 4, and it could see that liquid slag penetrated into spacing of decarbonization layer, and the fringe of zirconia grain split acutely.

The scanning potential range is 0V ~ +1.6 V (vs SCE) (the potential range is between hydrogen evolution potential and the deposition potential of a large number of O2) at a scan rate is 50mV•s-1. q* can be obtained  through the measured CV curves of different  PbO2 electrodes which is integrated in Table 3.
Futhermore, from the figure 2, it shows that the electrode 2# is fine grain size, large surface area, so the catalytic activity of this electrode is very good.

Because of grade of iron in ludwigite is very low, and there are some structure defects, the mineral grains of SiO2 and FeO contact with each other inevitably.
Small amount Si3N4 is produced resulted in exiting a large number of Fe.