Results 81 to 90 of about 1,516,887 (310)

Eliminating fluoride-induced corrosion of aluminum cathodes in zinc electrowinning by aluminum ion complexation

Journal of Materials Research and Technology
This paper discusses the effect of fluoride on the corrosion behavior of aluminum alloy used as a mother blank in zinc electrowinning, focusing on the mitigation of the corrosive process by aluminum ion addition and fluoride complexation.
N.G.S. Almeida, B.M. Ward, J.R. De Wet, A.D. Souza, V.S.T. Ciminelli, D. Majuste   +5 more
doaj   +1 more source

Assessment of Miscanthus × giganteus derived biochar as copper and zinc adsorbent:study of the effect of pyrolysis temperature, pH and hydrogen peroxide modification [PDF]

, 2017
In this work, experimental and modelling investigations were conducted on biochars pyrolyzed at 350 °C and 600 °C, to determine the effect of pyrolysis temperature, hydrogen peroxide activation and pH on copper and zinc removal, in comparison with ...
Bissessur, Ajay, Cibati, Alessio, Foereid, Bente, Hapca, Simona M.   +3 more
core   +6 more sources

Low‐Cost, Large‐Scale Nanoporous Metals by Mechanical Alloying, Oxide Reduction, and Dealloying of Powders

Advanced Engineering Materials, EarlyView.
Powder metal processing provides scalable advantages in nanoporous (np) metal development. Mechanical alloying is used to produce unique precursors for hybrid nanopore formation by oxide reduction and dealloying. As demonstrated in np Ag, this approach improves process efficiency while promoting smaller ligaments and larger pores, both of which are ...
Mark A. Atwater, Oliver A. Fowler
wiley   +1 more source

Estimation of salivary copper, zinc, iron and copper to zinc ratio in oral submucous fibrosis patients and its comparison with healthy individuals

Journal of Indian Academy of Oral Medicine and Radiology, 2019
Background: Trace elements have been found to be altered in oral submucous fibrosis (OSMF), an oral potentially malignant disorder which occurs as a result of a derangement in collagen metabolism. The literature on variation observed in the parameters of
Gitanjali Khulbe, Praveena Tantradi, Renuka Ammanagi, Sujata Byahatti   +3 more
doaj   +1 more source

Application of Raman and Photoluminescence Spectroscopy to MgO‐C Refractories

Advanced Engineering Materials, EarlyView.
Visible to near infrared luminescence of MgO is studied on MgO‐C bricks and nominally pure MgO powder, with focus on two similar sharp high‐intensity signals, at 699 and 871 nm, each surrounded by symmetrical sidebands. The nature of these sidebands is investigated by temperature‐dependent spectroscopic measurements, confirming phonon involvement by ...
Julia Richter, Felix Drechsler, Till M. J. Stadtmüller, Cameliu Himcinschi, Christos G. Aneziris, Jens Kortus   +5 more
wiley   +1 more source

The temperature uniformity within U-style silicon located in a novel 80-rod siemens reactor with a high silicon core

Results in Engineering
The previous studies focus on simplified reactor configurations with 12 or 24 pairs of rods and do not account for the complex thermal and electrical behaviors and multi-ring interaction present in a large-scale reactor.
Dan Zhao, Qingyun Jiang, Wenhui Ma, Gang Xie, Yanqing Hou, Jinglei Shen   +5 more
doaj   +1 more source

Serum Copper, Zinc, and Iron Levels in Patients with Alzheimer's Disease: A Meta-Analysis of Case-Control Studies

Frontiers in Aging Neuroscience, 2017
Background: Many publications have investigated the association between metal ions and the risk of Alzheimer's disease (AD), but the results were ambiguous.Aims: The objective of this study was to assess the association between the serum levels of metals
Dan-Dan Li, Wei Zhang, Zhan-You Wang, Pu Zhao   +3 more
doaj   +1 more source

Adherent protective coatings plated on magnesium-lithium alloy [PDF]

, 1965
Zinc is plated on a magnesium-lithium alloy by using a modification of the standard zinc-plate immersion bath. Further protection is given the alloy by applying a light plating of copper on the zinc plating. Other metals are plated on the copper by using

core   +1 more source

Novel Tailoring of Ternary ZnS‐MXene‐TiO2 Nanocomposite Heterojunction and Its Tunable Electrochemical Properties With Enhanced Photocatalytic Degradation

Advanced Engineering Materials, EarlyView.
ZnS‐MXene‐TiO2 nanocomposite heterojunction for photocatalytic decomposition of this methylene blue dye (MB) greatly improves light absorption, charge separation, and active site area. Two‐dimensional MXene forms nanocomposites by easily combining them with 0D (quantum dots), 1D (tube and wire), 2D (plane and sheet), and 3D (particle and lamellar ...
Latiful Kabir, Dohyun Kim, Minho Song, Jae Doc Na, Young Jun Joo, Kwang Youn Cho, Karna Wijaya, Won‐Chun Oh   +7 more
wiley   +1 more source

Toxicological inhalation studies in rats to substantiate grouping of zinc oxide nanoforms

Particle and Fibre Toxicology
Background Significant variations exist in the forms of ZnO, making it impossible to test all forms in in vivo inhalation studies. Hence, grouping and read-across is a common approach under REACH to evaluate the toxicological profile of familiar ...
Tizia Thoma, Lan Ma-Hock, Steffen Schneider, Naveed Honarvar, Silke Treumann, Sibylle Groeters, Volker Strauss, Heike Marxfeld, Dorothee Funk-Weyer, Svenja Seiffert, Wendel Wohlleben, Martina Dammann, Karin Wiench, Noömi Lombaert, Christine Spirlet, Marie Vasquez, Nicole Dewhurst, Robert Landsiedel   +17 more
doaj   +1 more source