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State of the International Nickel Industry -A Canadian Perspective
By Robert G. Telewiak
During the past few years, the international nickel industry has taken some important steps to respond to conditions of global production overcapacity, relatively flat demand and low prices. These inc
Jan 1, 1988
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Mesoporous Silica Coatings through Triblock-Copolymer Templated Processing
By Jose M. Gomez-Vega, Osamu Takai, Atsushi Hozumi, Hiroyuki Sugimura
"Ongoing research is reported aimed at improving the properties of mesoporous silica-based coatings on various substrates for optoelectronic or medical applications. Tetraethylorthosilicate (TEOS) was
Jan 1, 2000
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TEM Analysis of Sulfur and Chlorine in Organic Concentrates from Carbonaceous Gold Ore
By Tseng. B. H.
Samples of unchlorinated and chlorinated carbonaceous concentrate from a carbonaceous gold ore were analyzed by transmission electron microscopy (TEM) for organically bonded sulfur and chlorine. The c
Jan 1, 1987
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Effect Of Atmosphere Composition On Sintering Of Bronze
By Garg. D.
Premixed bronze powders are widely used to produce a wide variety of P/M components including bearings and bushings by the powder metal industry. The physical and mechanical properties of sintered bro
Jan 1, 1996
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Expansion Of the Copper Smelter In Huelva
By Patricio Barrios
This paper discusses the revamp and expansion of Atlantic Copper's (formerly Rio Tinto Metal) copper smelter located at Huelva, Spain. The plant was expanded from 150,000 to 270,000 tpy new coppe
Jan 1, 1998
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The Leaching Behavior of Platinum Powder In Iodide Solutions With Oxygen
By Xinghui Meng
The leaching behavior of platinum powder in .iodide solutions under oxygen pressure in an autoclave was investigated. Ammonium salts were added to the leaching solution at neutral pH as a key lixivian
Jan 1, 1996
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Quench Process Modeling and Optimization
By L. Yin, R. B. Haber, N. Sobh, D. A. Tortorelli, R. W. Hyland Jr.
"We optimize continuous quench process parameters to produce a desired precipitate distribution in aluminum alloy extrudates. To perform this task, an optimization problem is defined and solved using
Jan 1, 2000
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Stability of an Iridium Oxide Coated Titanium Anode in Copper Electrowinning
An iridium oxide coated titanium electrode was tested as anode in copper electrowinning. Initial results confmed that the DSA-type anode was significantly more active for oxygen evolution than traditi
Jan 1, 1992
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Titanium Diboride Powders - Plasma Synthesis and Characterization
By G. L. Watt
Fine sized titanium diboride (TiB2) powders have been synthesized in a thermal plasma reactor. Precursor for the synthesis were rutile, boron oxide, and methane. The effect of plasma gas type, precurs
Jan 1, 1995
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Comparsion Of The Mechanisms Of Void Formation By Plastic Deformation In Single- And Dual-Phase Bcc-Steels
By Hans Jürgen Maier, Hans-Bernward Besserer, Gregory Gerstein, Florian Nürnberger
The formation and development of voids in both the single-phase ferritic steel DC04 and the dual-phase ferritic-martensitic steel DP600 are discussed. Various mechanisms and kinetics of void formation
Jan 1, 2015
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Shrinking Core Models in Hydrometallurgy: What Students Aren't Being Told About the Pseudo-Steady Approximation
By K. Nona C. Liddell
There is a significant amount of early work that has been largely forgotten that deals with the validity of the pseudo-steady approximation for liquid-solid reactions. Much of this was originally publ
Jan 1, 2002
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Characterization of Clays From Campos Dos Goytacazes, State of Rio De Janeiro, Brazil
By C. M. F. Vieira
The main characteristics and physical and mechanical properties of clays from the county of Campos dos Goytacazes, located at the northern part of the State of Rio de Janeiro, Brazil, are presented. T
Jan 1, 2009
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Reaction Mechanisms and Product Morphologies on Gaseous Reduction of Metal Compounds -Extractive Metallurgy Meets Materials Science
By Peter C. Hayes
"The high temperature reduction of solids through the use of reactive gas atmospheres has application in a wide range of industrially important processes. Whilst significant advances have been made in
Jan 1, 2013
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Evaluation of Frictional and Wear Properties of Polycrystalline Diamond at Room Temperature
By Ali S. Al-Watban
"In this paper, the room temperature friction and deformation properties of various polycrystalline diamonds; i.e. aggregates of diamond crystals with a ""binder"" phase of cobalt and a polycrystallin
Jan 1, 2000
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Influence Of Sintering Temperature On Microstructure And Properties Of Magnesia Partially Stabilized Zirconia Ceramics
By Shuqiang Guo, Gonghui Yang, Xingxing Zhang, Yuyang Bian, Song Chen, Weizhong Ding, Yinhe Liu, Lan Jiang
One of the most promising refractory materials for application is zirconia in melting superalloy. In this work, the properties and phase composition of magnesia partially stabilized zirconia ceramics
Jan 1, 2015
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Detailed Mathematical Modeling Of Liquid Metal Streamer Formation And Breakup (Invited)
By Adam Powell
A Cahn-Hilliard phase field model is formulated to describe transport-limited electrochemical reactions coupled with fluid flow in a metal reduction cell. When the reaction is limited by mass transfer
Jan 1, 2003
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Recycling Of Waste Materials In A Ferrochrome Industry
By S. A. Platias
Large amounts of dunile tailings can be recycled for olivine produdion from the existing beneficiation adivity of chromite ore in northern Greece. This olivine production aims at the preparation of a
Jan 1, 1996
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Toward Mercury Management on U.S. Department of Energy Sites: Development and Selection Technologies
By Michael I. Morris
The U.S. Department of Energy's (DOE's) Transuranic and Mixed Waste Focus Area (TMFA), funded from fiscal year (FY) 1996 though FY 2002, was tasked with finding solutions for the mixed waste
Jan 1, 2003
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Formation Mechanism Of 2Cao·Sio₂ And 3Cao·P₂O₅ Solid Solution In Cao-Sio₂-Feto-P₂O₅ Slags
By Bin Zhu, Mingmei Zhu, Hong Zhou, Xiaofei Dou, Bin Xie, Yu Wang, Tiancheng Lin
In this study, the formation of 2CaO·SiO2 and 3CaO·P2O5 solid solution (nC2S-C3P) in hot metal dephosphorization process is discussed. The variations of CaO and SiO2 mass, both in nC2S-C3P solid solut
Jan 1, 2015
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New Process for the Fabrication of Cast Aluminum Alloy Matrix Composites
By Hideo Nakae, Hideki Yamaura, Toshiaki Kimura
"In 1968 J. N. Reding et al. suggested processes for fabricating composites. According to their patent, decompression atmosphere, which occurs during the reaction between magnesium and oxygen and/or n
Jan 1, 2000