2015 Vol. 22, No. 7

Display Method:
Effect of desliming on the magnetic separation of low-grade ferruginous manganese ore
Sunil Kumar Tripathy, P. K. Banerjee, and  Nikkam Suresh
2015, vol. 22, no. 7, pp. 661-673. https://doi.org/10.1007/s12613-015-1120-0
Abstract:
In the present investigation, magnetic separation studies using an induced roll magnetic separator were conducted to beneficiate low-grade ferruginous manganese ore. The feed ore was assayed to contain 22.4% Mn and 35.9% SiO2, with a manganese-to-iro...
Reductive atmospheric acid leaching of spent alkaline batteries in H2SO4/Na2SO3 solutions
Mehmet Hakan Morcali
2015, vol. 22, no. 7, pp. 674-681. https://doi.org/10.1007/s12613-015-1121-z
Abstract:
This work studies the optimum reductive leaching process for manganese and zinc recovery from spent alkaline battery paste. The effects of reducing agents, acid concentration, pulp density, reaction temperature, and leaching time on the dissolution o...
Effects of Br- and I- concentrations on Zn electrodeposition from ammoniacal electrolytes
Zhi-mei Xia, Sheng-hai Yang, Liang-hong Duan, and  Mo-tang Tang
2015, vol. 22, no. 7, pp. 682-687. https://doi.org/10.1007/s12613-015-1122-y
Abstract:
The effects of Br- and I- concentrations on the cell voltage, anodic polarization, current efficiency (CE), and energy consumption (EC) of zinc electrodeposition from ammoniacal ammonium chloride solutions were investigated. The surface morphology of...
Reduction kinetics of iron oxide pellets with H2 and CO mixtures
Hai-bin Zuo, Cong Wang, Jie-ji Dong, Ke-xin Jiao, and  Run-sheng Xu
2015, vol. 22, no. 7, pp. 688-696. https://doi.org/10.1007/s12613-015-1123-x
Abstract:
Reduction of hematite pellets using H2-CO mixtures with a wide range of H2/CO by molar (1:0, 3:1, 1:1, 1:3, and 0:1) at different reducing temperatures (1073, 1173, and 1273 K) was conducted in a program reducing furnace. Based on an unreacted core m...
Fe-Si particles on the surface of blast furnace coke
Stanislav S. Gornostayev, Eetu-Pekka Heikkinen, Jyrki J. Heino, and  Timo M. J. Fabritius
2015, vol. 22, no. 7, pp. 697-703. https://doi.org/10.1007/s12613-015-1124-9
Abstract:
This study investigates the surface of unpolished samples of blast furnace (BF) coke drilled from the tuyere zone, which hosts Fe-Si particles (mostly Fe3Si) that vary in size, shape, depth of submersion (penetration) into the coke matrix, and contac...
Effect of arsenic content and quenching temperature on solidification microstructure and arsenic distribution in iron-arsenic alloys
Wen-bin Xin, Bo Song, Chuan-gen Huang, Ming-ming Song, and  Gao-yang Song
2015, vol. 22, no. 7, pp. 704-713. https://doi.org/10.1007/s12613-015-1125-8
Abstract:
The solidification microstructure, grain boundary segregation of soluble arsenic, and characteristics of arsenic-rich phases were systematically investigated in Fe-As alloys with different arsenic contents and quenching temperatures. The results show...
Effect of an upward magnetic field on nanosized sulfide precipitation in ultra-low carbon steel
Kang-jia Duan, Ling Zhang, Xi-zhi Yuan, Shan-shan Han, Yu Liu, and  Qing-song Huang
2015, vol. 22, no. 7, pp. 714-720. https://doi.org/10.1007/s12613-015-1126-7
Abstract:
An induction levitation melting (ILM) refining process is performed to remove most microsized inclusions in ultra-low carbon steel (UCS). Nanosized, spheroid shaped sulfide precipitates remain dispersed in the UCS. During the ILM process, the UCS is ...
Effect of dislocation structure evolution on low-angle grain boundary formation in 7050 aluminum alloy during aging
Wei Gu, Jing-yuan Li, and  Yi-de Wang
2015, vol. 22, no. 7, pp. 721-728. https://doi.org/10.1007/s12613-015-1127-6
Abstract:
The effect of dislocation structure evolution on low-angle grain boundary formation in 7050 aluminum alloy during aging was studied by using optical microscopy, transmission electron microscopy, and electron backscatter diffraction analysis of misori...
Electrochemical investigation on the hydrogen permeation behavior of 7075-T6 Al alloy and its influence on stress corrosion cracking
Chuan-bo Zheng, Bing-hao Yan, Ke Zhang, and  Guo Yi
2015, vol. 22, no. 7, pp. 729-737. https://doi.org/10.1007/s12613-015-1128-5
Abstract:

The hydrogen permeation behavior and stress corrosion cracking (SCC) susceptibility of precharged 7075-T6 Al alloy were investigated in this paper. Devanthan–Stachurski (D-S) cell tests were used to measure the apparent hydrogen diffusivity and hydro...

Effect of rolling geometry on the mechanical properties, microstructure and recrystallization texture of Al-Mg-Si alloys
Xiao-feng Wang, Ming-xing Guo, Ling-yong Cao, Fei Wang, Ji-shan Zhang, and  Lin-zhong Zhuang
2015, vol. 22, no. 7, pp. 738-747. https://doi.org/10.1007/s12613-015-1129-4
Abstract:
The effect of rolling geometry on mechanical properties, microstructure, and recrystallization texture of Al-Mg-Si alloys was studied by means of tensile tests, microstructural observations, and electron backscatter diffraction measurements. The resu...
Characterization of NbSi2-Al2O3 nanocomposite coatings prepared with plasma spraying mechanically alloyed powders
Zohreh Yazdani, Fathallah Karimzadeh, Mohammad-Hasan Abbasi, and  Abbas Amini
2015, vol. 22, no. 7, pp. 748-754. https://doi.org/10.1007/s12613-015-1130-y
Abstract:
The present study characterized NbSi2-Al2O3 nanocomposite powders plasma-sprayed on Ti-6Al-4V substrates. The powders were agglomerated to obtain suitable particle sizes for spraying. The agglomerated powders were then plasma-sprayed using atmospheri...
Characterization and chemical surface texturization of bulk ZnTe crystals grown by temperature gradient solution growth
Rui Yang, Wan-qi Jie, and  Hang Liu
2015, vol. 22, no. 7, pp. 755-761. https://doi.org/10.1007/s12613-015-1131-x
Abstract:
Using tellurium as a solvent, we grew ZnTe ingots of 30 mm in diameter and 70 mm in length by a temperature gradient solution growth method. Hall tests conducted at 300 K indicated that the as-grown ZnTe exhibits p-type conductivity, with a carrier c...
Large-scale synthesis of nickel sulfide micro/nanorods via a hydrothermal process
Peng-fei Yin, Xiang-yu Han, Chao Zhou, Chuan-hui Xia, Chun-lian Hu, and  Li-li Sun
2015, vol. 22, no. 7, pp. 762-769. https://doi.org/10.1007/s12613-015-1132-9
Abstract:
Rhombohedral-phase NiS micro/nanorods were synthesized on a large scale through a hydrothermal method using NiCl2·6H2O and thiourea crystals as starting precursors. Recrystallized thiourea was observed to play an important role in the formation of mi...
Role of the surface chemistry of activated carbons in dye removal from aqueous solution
Hua-lei Zhou, Wen-juan Zhen, Qian Zhu, Xiao-bin Wu, Zhi-dong Chang, and  Wen-jun Li
2015, vol. 22, no. 7, pp. 770-776. https://doi.org/10.1007/s12613-015-1133-8
Abstract:
Commercial activated carbons were modified by a series of chemical or physical treatments using H2O2, NH3, and heating under N2 flow without notably changing their pore structures. The resultant carbons were characterized by N2 adsorption and Bohem t...