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electron microscope (SEM). 2 Experimental 2.1 Materials and solutions The solution (3.5% NaCl) was prepared using chemical grade sodium chloride and bidistilled water. The alloys used in this work were... can be associated with the active dissolution of Zn to Zn(II) species as previously reported [19,22]. Since the solubility product Ksp of zinc hydroxide is markedly low, 3×10-17 [23], zinc hydroxide......
copper-gold deposits[J]. Earth and Planetary Science Letters, 2009, 282(1/2/3/4): 323-328. [47] Simon A C, Frank M R, Pettke T, et al. Gold partitioning in melt-vapor-brine systems[J]. Geochimica et Cosmochimica Acta, 2005, 69(13): 3321-3335. [48] Simon A C, Pettke T, Candela P A, et al. Copper partitioning in a melt-vapor-brine-magnetite-pyrrhotite assemblage[J]. Geochimica et Cosmochimica Acta......
decreased in the side areas where the heat input was high and increased in the center where the heat was low. 3.3 Ballistic properties The 7039 Al alloys plates were fabricated by powder metallurgy method... a coarse hole when the projectile was exiting depending on its low velocity and friction. Figure 9 shows the deformation of the armor piercing projectile (HRC 63.3) which was shot to the SZ......
. Characteristic of fluid inclusions and metallization of Laoyaling copper deposit in Tongling, Anhui Province, China[J]. The Chinese Journal of Nonferrous Metals, 2015, 25(10): 2871-2882. [19] 徐九华, 张国瑞, 魏 浩..., and the characteristics of moderate or low temperature (in homogeneous temperature range of 192-362 ℃), moderate salinities(average of 7.52%), low density (0.46-0.87 g/cm3) and moderate-deep metallogenic depth......
the rising demand for high performance in many applications. AMCs have the right combination of properties such as higher stiffness, superior strength, improved resistance to wear and low coefficient... particulate which possesses high hardness and elastic modulus, low density, good wettability with molten aluminum and low chemical reactivity. The introduction of TiC particles into the aluminum matrix......
coevolution; orthogonal experimental design; butterfly-shaped patch antenna 1 Introduction Patch antennas are widely used in wireless communication systems because of their advantages, such as low... forward, one step back" phenomenon. For the low-dimensional (10D) unimodal functions f1-f5, the DE algorithm is comparatively good among these algorithms. The results of the OMSPSO algorithms are also......
], Zn can be soluble in Cu and Ni solid solutions. In addition, there are no apparent peaks of intermetallic compounds detected in XRD patterns due to their low contents. Therefore, it can be thought...=1:1) References [1] LEE H K, MOON H M, SEOL H J, LEE J E, KIM H I. Age hardening by dendrite growth in a low-gold dental casting alloy [J]. Biomaterials, 2004, 25(17): 3869-3875. [2] BUENCONSEJO P J S......
(地球科学版), 2011, 41(1): 123-136. LI Yong-sheng, ZHAO Cai-sheng, Zhi-cheng, YAN Guang-sheng, ZHEN Shi-min. Characteristics of fluid inclusions in Jiama copper–polymetallic ore deposit, Tibet and its... mineralization episode in Baojinshan gold deposit belongs to low salinity, medium-high temperature, CO2-rich Ca2+(Na+, Mg2+)-SO42-(Cl-, NO3-)-H2O-CO2 system. The calculated metallogenic pressures......
poulton’s reagent as the etchant. The TEM specimens were produced parallel to XZ plane. To do so, 1 mm thick slices were cut using a low-speed saw. Then, they were mechanically polished to a thickness... in this image. The SAED pattern contains clear points. This pattern illustrates that most of the fine grains created during the first pass of the operation involved low-angle boundaries. Similar situation......
equation depends upon the stress value. It is reported that the power law equation "breaks down" at high stress values, therefore, it is valid for low stress values, i.e., ασ<0.8 (Eq. (2)). On the other..., SEETHARAMAN V. Modeling dynamic recrystallization using cellular automata [J]. Scripta Materialia, 1998, 38: 405-413. [11] KOCKS U F. Laws for work-hardening and low-temperature creep [J]. Journal......
