Search results

Grain structures were examined for the annealed samples to ensure recrystallisation had not occurred.
The Kearns values represent the effective fraction of basal poles in one of the three principle directions; axial, tangential and radial [5] and essentially reduces the key texture information to three numbers.
To make the hardness measurements independent of other microstructural features, such as grain size and second phase particles, it is better to plot the ratio of the radial to tangential hardness (and vice-versa).

Compared with the common design method, settlement reducing pile foundation can greatly reduce the number of required piles.
In this case the foundation settlement can be reduced to allowed value by using lesser number of piles, and this kind of pile foundation is named settlement reducing pile foundation.
Poulos & Davis [4] studied the numbers of settlement reducing pile to achieve the reasonable foundation settlement.
Medium sand was used as soil around pile in the tests, which sizing test of grain content was shown as following: particle size more than 0.25 mm had the total weight of 34.3%, and the particle size more than 0.075 mm had the total weight of 99.8%.
Fig. 9 shows the actual results tested under different load grade which pressure cell number is shown in Fig.5.

With the optimal processing parameters ascertained by large numbers of experiments, the crystallizer was clad nickel-based alloy.
(a) Corrosion for 24 hours (b) Corrosion for 48 hours (b) Corrosion for 72 hours Fig.8 Results of corrosion in CuSO4 Solution of sample element wt% at% BK 23.34 53.83 CK 7.30 15.15 SiK 1.43 1.27 CrK 22.72 10.89 FeK 4.07 1.82 NiK 27.86 11.83 CuK 13.28 5.21 Total 100 100 Conclusion Laser metal deposition system was developed to clad nickel-based alloy on copper crystallizer, resulting in good property such as high wear resistance,erosion resistance and hardness.The following conclusion can be obtained by experiment. 1.Preheating substrate contributes to get crack-free cladding layers which have finer grains and h omogeneous structure. 2.The cladding layer and the substrate diluted to each other in the bonding zone, resulting in good wettability ,so they could realize the metallurgic and tight bonding. 3.The cladding layer chemical composition was well-distributed and has few segregation, so the performance of parts can be improved. 4.The result of

TECTONIC UNIT NUMBER OF DATA MIN.
The highest number of measurements have been performed in the area of the Sudetes and the Fore-Sudetic block in connection with research aimed at determining radon potential [6].
LLD - lower limit of detection Geological unit (region of Poland) 222Rn activity concentration Number of data Min.
They are formed as a result of radioactive alpha transformation of 226Ra incorporated in mineral structures or present in interstitial pores and on the grain surface of reservoir rocks.
The maximum number, 70% of all the 222Rn atoms formed in rock, can be released to ground-waters in zones disturbed by brittle tectonic deformations.

A number of studies have shown that the squeeze casting process refines grains and eliminates porosity, and makes it suitable for producing premium quality castings [8,11,13,15].
As stated earlier, squeeze casting further enhances the strength due to the absence of micro-porosity, better interfacial bond between matrix and reinforcement, and grain refinement [19].

Reservoir rocks consist primarily of fine-medium grained feldspar-quartz sandstone or lithic quartz-sandstone.
Main lithology is fine grained quartz sandstone.
Tab. 1 A west fault block of Yuyang group water sensitivity test evaluation sensitivity evaluation well number Well depth(m) horizon permeability×10-3μm2 Kf 10-3μm2 Kw 10-3μm2 Kw/Kf conclusions simulate freshwater water sensitivity degree ES8 3515.77—3515.98 k2y4 2.54 0.99 0.99 1 weak water sensitivity 2.11 0.96 1.03 1.07 weak water sensitivity ES10 3355.85 k2y3 2.12 0.23 0.06 0.26 strong water sensitivity 3357.98 0.333 0.0102 0.0038 0.373 medium to high water sensitivity 3366.45 0.05 0.0044 0.0018 0.409 medium to high water sensitivity 3367.36 0.078 0.039 0.0014 0.359 medium to high water sensitivity The results by water sensitivity test and mineral analysis show that a compound fault block reservoir is rich in sensitive minerals: illite/montmorillonite, shale and iron shale, calcite, dolomite, clay minerals of all types.

Powder of nano-TiO2 with good crystallinity and small particle size has high photocatalytic activity because its quantum size limit, high specific surface area, large number of particles with high surface activity, short migration distance and small grain size.
The average grain size was 27.3nm, which obtained by Scherer formula.

Since the properties of polycrystalline materials are often expressed by the average values of those of individual grains, the author [4] recently proposed a method for predicting the bendability from the average Taylor factor of polycrystalline FCC metal sheets calculated using an orientation distribution function (ODF) [5] which expressed a volume fraction of grain orientation.
In general, low carbon steels show high ductility and have a number of glide systems.

Lithofacies and reservoir space characteristics of the Cambrian strata of the Penglaiba profile of the Tarim Basin A: Echelon tensional joints formed by interlayer sliding; B: Edgewise intraclast formed by peristalsis of interlaminar and closely transportation; C: Breccias formed by slope slump; D: Gypsum karst collapse; E: Gypsum karst breccias; F: Various spherical or lenticular holes by gypsum dissolution; G: Stromatolites in the Upper Cambrian; H: Algal bond mound in the Upper Cambrian Qiulitage Formation; I: Grain dolomite in the Lower Cambrian Xiaoerbulak Formation; J: Honeycomb pores by Supergene atmospheric freshwater dissolution; K: Organic acid dissolution of the Upper Cambrian microbial reef dolomite; L: Organic acid dissolution at the bottom of the Xiaoerbulak Formation; M: Hydrothermal alteration dolomite in Lower Qiulitage Formation; N: Dissolution pores developed along strata at the top of the Xiaoerbulak Formation; O: Filling minerals (fluorite, quartz) in dissolution pores
The precursors of grain dolomites distributed at the top of the Lower Cambrian Xiaoerbulak Formation are grainstones developed in the platform margin shoal.
Finally, diagenetic/hydrocarbon fluid and hydrothermal fluid result in large numbers of dissolution pores.

The average calculated value (140 kJ/mol) is equivalent to that obtained in a number of different studies that analyzed the creep response of Mg-Al alloys.
As in other as-cast Mg-Al alloys, the microstructure consists in α-Mg solid solution grains surrounded by a continuous network of precipitates rich in RE (mainly Al2RE), embedded in a matrix of eutectic α.
The Al, Ce and La content inside primary grain was negligible [21].